Re: Reg secure python environment with web terminal emulator
Lakshmipathi.G lakshmipath...@gmail.com writes: Could you please share more info about creating raw binary executable and its potential problem. In an earlier message, you reported to have banned gcc to avoid C level exploits. A raw binary executable would allow the same exploits. Think of a binary generated elsewhere (where gcc is available) and put into your environment. I am convinced that 100 % security is impossible - and correspondingly would use a pragmatic approach: I would rely on OS level constraints (user with very restricted rights, process running in an isolated box) - and ensure the OS is kept up to date to reduce the risk of exploits of OS security weaknesses. -- http://mail.python.org/mailman/listinfo/python-list
Re: beginner question (True False help)
Le mercredi 7 août 2013 10:17:21 UTC+2, eschne...@comcast.net a écrit :
I'm trying to create an option for the program to repeat if the user types
'y' or 'yes', using true and false values, or otherwise end the program. If
anyone could explain to me how to get this code working, I'd appreciate it.
letters='abcdefghijklmn'
batman=True
def thingy():
print('type letter from a to n')
typedletter=input()
if typedletter in letters:
print('yes')
else:
print('no')
def repeat():
print('go again?')
goagain=input()
if goagain in ('y', 'yes'):
print('ok')
else:
print('goodbye')
batman=False
while batman==True:
thingy()
repeat()
print('this is the end')
---
Your loop is not very well organized. It should be
at the same time the loop and the condition tester.
Compare your code with this and note the missing and
unnecessary batman:
def z():
... letters = 'abc'
... c = input('letter: ')
... while c in letters:
... print('do stuff')
... c = input('letter: ')
... print('end, fin, Schluss')
...
z()
letter: a
do stuff
letter: b
do stuff
letter: b
do stuff
letter: c
do stuff
letter: n
end, fin, Schluss
z()
letter: q
end, fin, Schluss
Variant
It is common to use a infinite loop and to break it
in order to end the job.
def z2():
... letters = 'abc'
... while True:
... c = input('letter: ')
... if c not in letters:
... print('end, fin, Schluss')
... break
... else:
... print('do stuff')
...
z2()
letter: a
do stuff
letter: b
do stuff
letter: a
do stuff
letter: q
end, fin, Schluss
jmf
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Is it possible to make a unittest decorator to rename a method from x to testx?
We were coming into Python's unittest module from backgrounds in nunit, where they use a decorate to identify tests. So I was hoping to avoid the convention of prepending test to the TestClass methods that are to be actually run. I'm sure this comes up all the time, but I mean not to have to do: class Test(unittest.TestCase): def testBlablabla(self): self.assertEqual(True, True) But instead: class Test(unittest.TestCase): @test def Blablabla(self): self.assertEqual(True, True) This is admittedly a petty thing. I have just about given up trying to actually deploy a decorator, but I haven't necessarily given up on trying to do it for the sake of knowing if it's possible. Superficially, you'd think changing a function's __name__ should do the trick, but it looks like test discovery happens without looking at the transformed function. I tried a decorator like this: def prepend_test(func): print running prepend_test func.__name__ = test + func.__name__ def decorator(*args, **kwargs): return func(args, kwargs) return decorator When running unit tests, I'll see running prepend_test show up, but a dir on the class being tested doesn't show a renamed function. I assume it only works with instances. Are there any other tricks I could consider? -- http://mail.python.org/mailman/listinfo/python-list
Issues with if and elif statements in 3.3
def town(): print (You stand in the middle of Coffeington while you descide what to do next, you have herd rumor of the Coffeington Caves that run under the city, would you like to check them out?) answer = input() if answer == (yes) or (Yes) or (y): print(You set out for the Coffeington Caves) elif answer == (no) or (No) or (n): print(Oh...well im sure you can find something else to do) else: print(You just stand there) town() i don't know why the elif or else part of the if statment wont trigger. what ends up happening is that regardless of what answer you put in input it will always print out you set out for the Coffeington Caves. whats supposed to happen is if you say no it should just end? i think anway. -- http://mail.python.org/mailman/listinfo/python-list
Paramiko Help. Execute command to Interactive Shell which is opened by SSHClient()
Hi All, Im using Paramiko for my SSH automation. Im using method that is shown in demo_simple.py example which comes with Paramiko. Below is code from demo_simple.py. As you can make out, below code opens SSH connection and opens Interactie Shell, and then wait for the command from user. I want to submit the command to this Interactive Shell using code. try: client = paramiko.SSHClient() client.load_system_host_keys() client.set_missing_host_key_policy(paramiko.WarningPolicy()) print '*** Connecting...' client.connect(hostname, port, username, password) chan = client.invoke_shell() print repr(client.get_transport()) print '*** Here we go!' print interactive.interactive_shell(chan) chan.close() client.close() Well Another approach I tried is instead of opening interactive_shell, directly issue command using; stdin, stdout, stderr = client.exec_command(bv_cmd) for line in stderr.readlines(): print line for line in stdout.readlines(): print line But problem here is client.exec_command(bv_cmd) waits for command to execute completely and then it returns to stdout,stderr. And I want to see the ouput from the command during its execution. Because my command takes long time for execution. Big Picture in My Mind: Big Picture I that want to achieve is, Opening different SSH connection to different host, and it will issue commands to all host, wait for execution. All execution should happen parallel.(just wanted to share my thought, and wanted to hear opinions from you all. Is this possible??). I am not big programmer, just 2 years experience with asp.net C# 2.0 so i would appreciate if discussion happens in simple english. -- http://mail.python.org/mailman/listinfo/python-list
Re: Reg secure python environment with web terminal emulator
the same exploits. Think of a binary generated elsewhere (where gcc is available) and put into your environment. That's pretty bad news :( I am convinced that 100 % security is impossible - and correspondingly would use a pragmatic approach: I would rely on OS level constraints (user with very restricted rights, process running in an isolated box) - and ensure the OS is kept up to date to reduce the risk of exploits of OS security weaknesses. Yes,agree 100% security will never be possible. I'll explore about running process as an isolated box. Thanks for the suggestions and inputs. -- Cheers, Lakshmipathi.G FOSS Programmer. www.giis.co.in -- http://mail.python.org/mailman/listinfo/python-list
Thinking Unicode
I wrote many times on this list, the ascii (generic name for
byte string) world and the unicode world are two incompatible
worlds. There are bridges, basically there are incompatible,
they requires to think differently.
There is an interesting case on the dev list:
http://mail.python.org/pipermail/python-dev/2013-July/127420.html
There is nothing wrong in polishing the documentation, but
interestingly the discussion turned out about the
usage of -- and --- instead of real en-dashes and
em-dashes, understand use ascii and not unicode.
It has been argued TeX uses -- and ---. True for
the pre-unicode engines. It's no more the case.
Steven proposed the usage of \N{EM DASH}, ...
Good point, a real step towards unicode, but why
using ascii when one can use directly –, —?
Is it not the purpose to use unicode in an utf-8
file, many recommand?
If utf-8 is (and has been created to be) compatible with ascii,
it seems today the usage is to make utf-8 compatible with ascii!
The .rst files have been touched and in my last check,
1-2 days ago, the - has been replaced by
-. No trace of real en-dashes, em-dashes
in diff's.
What happen if confusion is reappearing? Simple,
reopen a discussion and continue to not solve
problems.
-
Somebody wrote:
... (and nobody really wants to type three hyphens except
for a handful of typographical nuts)...
Completely out of phase. Beyond that comment (or kind of comment),
(I'm spying the misc. lists since years), not a suprise that Python
and Unicode never work.
jmf
PS
'–—'.encode('cp1252')
b'\x96\x97'
'–—'.encode('mac-roman')
b'\xd0\xd1'
'–—'.encode('latin-1')
Traceback (most recent call last):
File eta last command, line 1, in module
UnicodeEncodeError: 'latin-1' codec can't encode characters in position 0-1:
ordinal not in range(256)
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Re: Is it possible to make a unittest decorator to rename a method from x to testx?
On 8/8/2013 2:32 AM, adam.pre...@gmail.com wrote:
We were coming into Python's unittest module from backgrounds in nunit, where they use a
decorate to identify tests. So I was hoping to avoid the convention of prepending
test to the TestClass methods that are to be actually run. I'm sure this
comes up all the time, but I mean not to have to do:
class Test(unittest.TestCase):
def testBlablabla(self):
self.assertEqual(True, True)
But instead:
class Test(unittest.TestCase):
@test
def Blablabla(self):
self.assertEqual(True, True)
I cannot help but note that this is *more* typing. But anyhow, something
like this might work.
def test(f):
f.__class__.__dict__['test_'+f.__name__]
might work. Or maybe for the body just
setattr(f.__class__, 'test_'+f.__name__)
Superficially, you'd think changing a function's __name__ should do the trick,
but it looks like test discovery happens without looking at the transformed
function.
I am guessing that unittest discovery for each class is something like
if isinstance (cls, unittest.TestCase):
for name, f in cls.__dict__.items():
if name.startswith('test'):
yield f
You were thinking it would be
...
for f in cls.__dict__.values():
if f.__name__.startwith('test'):
yield f
Not ridiculous, but you seem to have disproven it. I believe you can
take 'name' in the docs to be bound or namespace name rather than
definition or attribute name.
--
Terry Jan Reedy
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Re: Is it possible to make a unittest decorator to rename a method from x to testx?
adam.pre...@gmail.com wrote:
We were coming into Python's unittest module from backgrounds in nunit,
where they use a decorate to identify tests. So I was hoping to avoid the
convention of prepending test to the TestClass methods that are to be
actually run. I'm sure this comes up all the time, but I mean not to have
to do:
class Test(unittest.TestCase):
def testBlablabla(self):
self.assertEqual(True, True)
But instead:
class Test(unittest.TestCase):
@test
def Blablabla(self):
self.assertEqual(True, True)
This is admittedly a petty thing. I have just about given up trying to
actually deploy a decorator, but I haven't necessarily given up on trying
to do it for the sake of knowing if it's possible.
Superficially, you'd think changing a function's __name__ should do the
trick, but it looks like test discovery happens without looking at the
transformed function. I tried a decorator like this:
def prepend_test(func):
print running prepend_test
func.__name__ = test + func.__name__
def decorator(*args, **kwargs):
return func(args, kwargs)
return decorator
When running unit tests, I'll see running prepend_test show up, but a
dir on the class being tested doesn't show a renamed function. I assume
it only works with instances. Are there any other tricks I could
consider?
I think you are misunderstanding what a decorator does. You can think of
def f(...): ...
as syntactic sugar for an assignment
f = make_function(...)
A decorator intercepts that
f = decorator(make_function(...))
and therefore can modify or replace the function object, but has no
influence on the name binding.
For unittest to allow methods bound to a name not starting with test you
have to write a custom test loader.
import functools
import unittest.loader
import unittest
def test(method):
method.unittest_method = True
return method
class MyLoader(unittest.TestLoader):
def getTestCaseNames(self, testCaseClass):
def isTestMethod(attrname, testCaseClass=testCaseClass,
prefix=self.testMethodPrefix):
attr = getattr(testCaseClass, attrname)
if getattr(attr, unittest_method, False):
return True
return attrname.startswith(prefix) and callable(attr)
testFnNames = list(filter(isTestMethod, dir(testCaseClass)))
if self.sortTestMethodsUsing:
testFnNames.sort(key=functools.cmp_to_key(self.sortTestMethodsUsing))
return testFnNames
class A(unittest.TestCase):
def test_one(self):
pass
@test
def two(self):
pass
if __name__ == __main__:
unittest.main(testLoader=MyLoader())
Alternatively you can write a metaclass that *can* intercept the name
binding process:
$ cat mytestcase.py
import unittest
__UNITTEST = True
PREFIX = test_
class Type(type):
def __new__(class_, name, bases, classdict):
newclassdict = {}
for name, attr in classdict.items():
if getattr(attr, test, False):
assert not name.startswith(PREFIX)
name = PREFIX + name
assert name not in newclassdict
newclassdict[name] = attr
return type.__new__(class_, name, bases, newclassdict)
class MyTestCase(unittest.TestCase, metaclass=Type):
pass
def test(method):
method.test = True
return method
$ cat mytestcase_demo.py
import unittest
from mytestcase import MyTestCase, test
class T(MyTestCase):
def test_one(self):
pass
@test
def two(self):
pass
if __name__ == __main__:
unittest.main()
$ python3 mytestcase_demo.py -v
test_one (__main__.test_two) ... ok
test_two (__main__.test_two) ... ok
--
Ran 2 tests in 0.000s
OK
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Re: [GUI] Good frameworks for Windows/Mac?
On Tuesday, August 6, 2013 4:05:40 PM UTC+5:30, Gilles wrote: Hello I need to write a small GUI application that should run on Windows and Mac. What open-source framework would you recommend? I just need basic widgets (button, listbox, etc.) and would rather a solution that can get me up and running fast. I know about wxWidgets and Qt: Are there other good options I should know about? Thank you. Pyside is also Good. It has a Designer which can be helpful. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is it possible to make a unittest decorator to rename a method from x to testx?
Peter Otten wrote: $ python3 mytestcase_demo.py -v test_one (__main__.test_two) ... ok test_two (__main__.test_two) ... ok -- Ran 2 tests in 0.000s Oops, that's an odd class name. Fixing the name clash in Types.__new__() is left as an exercise... -- http://mail.python.org/mailman/listinfo/python-list
To make simpleXMLRPC support multi-thread
I try to use simpleXMLRPC and support request multithreads ，used ThreadingMixIn.
Why what I get from the console still blocking ?
launch the two clients at the same time，one finish, then begin the other,
between them there is 15 sec.
Here is the console output on server windows:
Use Cc to exit
DEBUG:root:11 request dir the directory(/)
DEBUG:root:block 11 ...
nio102 - - [08/Aug/2013 15:35:17] POST /RPC2 HTTP/1.0 200 -
DEBUG:root:22 request dir the directory(/)
DEBUG:root:block 22 ...
nio102 - - [08/Aug/2013 15:35:32] POST /RPC2 HTTP/1.0 200 -
The following are the codes:
## client 111 ##
import xmlrpclib
proxy = xmlrpclib.ServerProxy('http://xx.xx.xx.xx:9000')
print proxy.dir_contents('/', '11')
## client 222 ###
import xmlrpclib
proxy = xmlrpclib.ServerProxy('http://xx.xx.xx.xx:9000')
print proxy.dir_contents('/', '22')
## server ###
from SimpleXMLRPCServer import SimpleXMLRPCServer
from SocketServer import ThreadingMixIn
import logging
import os
import time
logging.basicConfig(level=logging.DEBUG)
def list_contents(dir_name, client):
logging.debug('%s request list the directory(%s)', client, dir_name)
logging.debug('block %s request for 15 sec...' % client)
time.sleep(15)
return os.listdir(dir_name)
class ListDirRPCServer(ThreadingMixIn, SimpleXMLRPCServer):
def __init__(self, ip, port):
self.server = SimpleXMLRPCServer((ip, port), logRequests=True)
self.server.register_function(list_contents)
def active_server(self):
try:
print Use Cc to exit
self.server.serve_forever()
except KeyboardInterrupt:
print exiting
if __name__ == '__main__':
ip = 'xx.xx.xx.xx'
port = 9000
list_rpc = ListDirRPCServer(ip, port)
list_rpc.active_server()
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Re: [GUI] Good frameworks for Windows/Mac?
On Thu, 8 Aug 2013 01:47:21 -0700 (PDT), sagar varule sagar.var...@gmail.com wrote: Pyside is also Good. It has a Designer which can be helpful. Thanks for the info. -- http://mail.python.org/mailman/listinfo/python-list
Suggestion: PEP for popping slices from lists
The list.pop(index) returns the element represented by the index and also reduces the list by removing that element. So it a short one liner for doing both things. But when it comes for popping a slice of the list there is nothing similar for doing in that simple way. If you want to remove a slice and also reduce the list you will have something like this: a_list, a_slice = a_list[:size], a_list[size:] or even worser if you try to do the same for something in the middle. My proposal is the extension of list.pop for accepting a way for popping slices. When doing this: a_list.pop(i,j) pop will return the slice [i,j] and remove it from the list. For popping from an index to the end: a_list.pop(i, len(a_list)) Or even emptying the whole list: a_list.pop(0, len(a_list)) So this is it :) -- http://mail.python.org/mailman/listinfo/python-list
[ActivePython] Add Qt/PyQt and wxWidgets/wxPython?
Hello I upgraded to ActivePython 2.7.2.5, and would like to get started learning about Qt and wxWidgets in Python. I have a couple of question: 1. Are there obvious reasons to choose either QT/PyQt or wxWidgets/wxPython? I have the impression that Qt is a richer GUI than wxWidgets, but it could just be an impression. 2. Is there a no-brainer article that explains how to add Qt and wxWidgets to ActivePython community edition, since they're only included in the Business and Enterprise editions? Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Re: Mock pathc question
- Mail original -
Hi
1) I prefer to use start/stop and not the decorator .
2) mock_play is the name of the module where the code belongs
Thanks
Avishay
Sent from my iPhone
You should not neeed to refer to the Calc class using mock_play since it is
defined in the very same file (module).
Possibly mock_play.Calc and Calc are 2 different classes, hence you're not
patching the good one.
Note how you patch mock_play.Calc and then instanciate using self.calc =
Calc()
right before
my_mock = mock.patch('mock_play.Calc',create=True, new=MockCalc)
add
print mock_play.Calc
print Calc
and verify that they are both the very same object.
Cheers,
JM
PS : Please do not top post in this list
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Re: Suggestion: PEP for popping slices from lists
Neatu Ovidiu Gabriel wrote: The list.pop(index) returns the element represented by the index and also reduces the list by removing that element. So it a short one liner for doing both things. But when it comes for popping a slice of the list there is nothing similar for doing in that simple way. If you want to remove a slice and also reduce the list you will have something like this: a_list, a_slice = a_list[:size], a_list[size:] or even worser if you try to do the same for something in the middle. My proposal is the extension of list.pop for accepting a way for popping slices. When doing this: a_list.pop(i,j) pop will return the slice [i,j] and remove it from the list. For popping from an index to the end: a_list.pop(i, len(a_list)) Or even emptying the whole list: a_list.pop(0, len(a_list)) So this is it :) You'd use 'del' to remove a slice from a list. So: def pop_slice(items, *indices): ... x = slice(*indices) ... result = items[x] ... del items[x] ... return result ... items = range(10) pop_slice(items, 3) [0, 1, 2] items [3, 4, 5, 6, 7, 8, 9] pop_slice(items, 3, 4) [6] items [3, 4, 5, 7, 8, 9] pop_slice(items, None, None, 2) [3, 5, 8] items [4, 7, 9] But what's your use case? Does it occur often enough that you cannot afford a two-liner like result = items[start:stop] del items[start:stop] ? -- http://mail.python.org/mailman/listinfo/python-list
Re: Issues with if and elif statements in 3.3
krismesenbr...@gmail.com wrote: def town(): print (You stand in the middle of Coffeington while you descide what to do next, you have herd rumor of the Coffeington Caves that run under the city, would you like to check them out?) answer = input() if answer == (yes) or (Yes) or (y): This doesn't do what you think it does. First it compares answer to yes. Then it takes the result of that and OR's it with Yes. Then it takes the result of that and OR's it with y. Finally it takes the bool of the result and decides whether to execute the if-body. Since those OR's will always be true, it always executes the if-body, and never the elif or else body. Fix the expression to what you presumably meant: if answer == yes or answer == Yes or answer == y: Or less typing: if answer in (yes, Yes, y): print(You set out for the Coffeington Caves) elif answer == (no) or (No) or (n): print(Oh...well im sure you can find something else to do) else: print(You just stand there) town() i don't know why the elif or else part of the if statment wont trigger. what ends up happening is that regardless of what answer you put in input it will always print out you set out for the Coffeington Caves. whats supposed to happen is if you say no it should just end? i think anway. -- DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggestion: PEP for popping slices from lists
On Thursday, August 8, 2013 1:07:16 PM UTC+3, Peter Otten wrote: Neatu Ovidiu Gabriel wrote: The list.pop(index) returns the element represented by the index and also reduces the list by removing that element. So it a short one liner for doing both things. But when it comes for popping a slice of the list there is nothing similar for doing in that simple way. If you want to remove a slice and also reduce the list you will have something like this: a_list, a_slice = a_list[:size], a_list[size:] or even worser if you try to do the same for something in the middle. My proposal is the extension of list.pop for accepting a way for popping slices. When doing this: a_list.pop(i,j) pop will return the slice [i,j] and remove it from the list. For popping from an index to the end: a_list.pop(i, len(a_list)) Or even emptying the whole list: a_list.pop(0, len(a_list)) So this is it :) You'd use 'del' to remove a slice from a list. So: def pop_slice(items, *indices): ... x = slice(*indices) ... result = items[x] ... del items[x] ... return result ... items = range(10) pop_slice(items, 3) [0, 1, 2] items [3, 4, 5, 6, 7, 8, 9] pop_slice(items, 3, 4) [6] items [3, 4, 5, 7, 8, 9] pop_slice(items, None, None, 2) [3, 5, 8] items [4, 7, 9] But what's your use case? Does it occur often enough that you cannot afford a two-liner like result = items[start:stop] del items[start:stop] ? But what's your use case? Does it occur often enough that you cannot afford a two-liner like I think uses cases are plenty. And how can I figure out how often it occurs? I don't have a hint, it remains an open question. The issues I see so far with my proposal are: - what you said, how often it is used, if it deserves a place - maybe it should be a separate function like pop_slice to don't alter in anyway the behavior of good old pop - it will rise some backwards compatibility issues I just find it's a more pythonic way to deal with this situation. One short line instead of two or one long line is better. This shortness of typing is the core feature of Python so I think my proposal it's leap towards simplicity. -- http://mail.python.org/mailman/listinfo/python-list
paramiko installation problem
Im having problems using paramiko after installation on my Win7 64bit system. I can see both paramiko and pycrypto being there installed via pip list: I have tried so many different ways but in the end im always getting the same error when trying to import paramiko: (i can import Crypto with no problems) Traceback (most recent call last): File pyshell#0, line 1, in module import paramiko File C:\Python33\lib\site-packages\paramiko\__init__.py, line 64, in module from transport import SecurityOptions, Transport ImportError: No module named 'transport' Please can you help? thx -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggestion: PEP for popping slices from lists
On Thu, Aug 8, 2013 at 11:38 AM, Neatu Ovidiu neatu...@gmail.com wrote: But what's your use case? Does it occur often enough that you cannot afford a two-liner like I think uses cases are plenty. The possible cases I can think of would be better served with list comprehensions (what you seem to want is to create lists based on other lists) - but maybe I'm missing something. Could we have one example? N. -- http://mail.python.org/mailman/listinfo/python-list
Re: beginner question (True False help)
On Thu, Aug 8, 2013 at 7:20 AM, wxjmfa...@gmail.com wrote:
def z2():
... letters = 'abc'
... while True:
... c = input('letter: ')
... if c not in letters:
... print('end, fin, Schluss')
... break
... else:
... print('do stuff')
Minor quibble: I don't like having a hard exit followed by an else.
If the if branch will unconditionally quit the loop (with a break,
here, but could also be a return, a thrown exception, etc etc), I
would prefer to see the else removed and its code unindented one
level. Maybe this is just personal preference, though, learned from
assembly language programming where a block if looks something like
this:
; if x == y:
CMP x,y
JNZ .else
; Code for x == y
JMP .endif
.else:
; Code for else
.endif
Putting an unconditional departure in the x == y branch makes the
JMP .endif redundant.
ChrisA
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Re: Suggestion: PEP for popping slices from lists
On Thursday, August 8, 2013 2:12:53 PM UTC+3, Nicholas wrote: On Thu, Aug 8, 2013 at 11:38 AM, Neatu Ovidiu neat...@gmail.com wrote: But what's your use case? Does it occur often enough that you cannot afford a two-liner like I think uses cases are plenty. The possible cases I can think of would be better served with list comprehensions (what you seem to want is to create lists based on other lists) - but maybe I'm missing something. Could we have one example? N. This can be useful for doing all kinds of basic stuff. For example if you wanted to take 4 items of a list at at a time, do something with them and then update the list. jobs = ['job1', 'job2', 'job3', 'job5', 'job6', 'job7', 'job8', 'job9', 'job10'] while jobs: print jobs.pop_slice(0,4) -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggestion: PEP for popping slices from lists
On Thursday, August 8, 2013 2:12:53 PM UTC+3, Nicholas wrote: On Thu, Aug 8, 2013 at 11:38 AM, Neatu Ovidiu neat...@gmail.com wrote: But what's your use case? Does it occur often enough that you cannot afford a two-liner like I think uses cases are plenty. The possible cases I can think of would be better served with list comprehensions (what you seem to want is to create lists based on other lists) - but maybe I'm missing something. Could we have one example? N. This can be useful for doing all kinds of basic stuff. For example if you wanted to take 4 items of a list at at a time, do something with them and then update the list. jobs = ['job1', 'job2', 'job3', 'job4', 'job5', 'job6', 'job7', 'job8', 'job9', 'job10'] while jobs: print(jobs.pop_slice(0,4)) should output 'job1', 'job2', 'job3', 'job4' 'job5', 'job6', 'job7', 'job8' 'job9', 'job10' -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggestion: PEP for popping slices from lists
On Thursday, August 8, 2013 2:44:05 PM UTC+3, Neatu Ovidiu wrote: On Thursday, August 8, 2013 2:12:53 PM UTC+3, Nicholas wrote: On Thu, Aug 8, 2013 at 11:38 AM, Neatu Ovidiu neat...@gmail.com wrote: But what's your use case? Does it occur often enough that you cannot afford a two-liner like I think uses cases are plenty. The possible cases I can think of would be better served with list comprehensions (what you seem to want is to create lists based on other lists) - but maybe I'm missing something. Could we have one example? N. This can be useful for doing all kinds of basic stuff. For example if you wanted to take 4 items of a list at at a time, do something with them and then update the list. jobs = ['job1', 'job2', 'job3', 'job4', 'job5', 'job6', 'job7', 'job8', 'job9', 'job10'] while jobs: print(jobs.pop_slice(0,4)) should output 'job1', 'job2', 'job3', 'job4' 'job5', 'job6', 'job7', 'job8' 'job9', 'job10' The idea popped in my mind while thinking about this question. http://stackoverflow.com/questions/18121416/right-split-a-string-into-groups-of-3/18122084 I founded the list comprehensions solutions kind of cumbersome and thought that there should be a simple way to do this kind of stuff. -- http://mail.python.org/mailman/listinfo/python-list
Re: outputting time in microseconds or milliseconds
i did:
from time import strftime, time
from datetime import datetime
now = datetime.now()
self.logfile.write('%s\t'%(strftime(%Y-%m-%d,)))
self.logfile.write('%s\t'%(now.strftime(%H:%M:%S.%f,)))
Note that you don't need the time module here. Datetime objects have
what you need all by themselves:
from datetime import datetime
now = datetime.now()
self.logfile.write('%s\t%s\n' % (now.strftime(%Y-%m-%d),
now.strftime(%H:%M:%S.%f)))
The time module was historically the way Python did time, but it
wasn't at all object-oriented and provided no direct support for date
arithmetic. When Tim Peters wrote datetime, the world became a better
place. Cozy up to the datetime documentation and put the time module
aside.
Skip
Skip
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Re: Suggestion: PEP for popping slices from lists
On Thu, Aug 8, 2013 at 12:50 PM, Neatu Ovidiu neatu...@gmail.com wrote: On Thursday, August 8, 2013 2:44:05 PM UTC+3, Neatu Ovidiu wrote: On Thursday, August 8, 2013 2:12:53 PM UTC+3, Nicholas wrote: On Thu, Aug 8, 2013 at 11:38 AM, Neatu Ovidiu neat...@gmail.com wrote: But what's your use case? Does it occur often enough that you cannot afford a two-liner like I think uses cases are plenty. The possible cases I can think of would be better served with list comprehensions (what you seem to want is to create lists based on other lists) - but maybe I'm missing something. Could we have one example? N. This can be useful for doing all kinds of basic stuff. For example if you wanted to take 4 items of a list at at a time, do something with them and then update the list. jobs = ['job1', 'job2', 'job3', 'job4', 'job5', 'job6', 'job7', 'job8', 'job9', 'job10'] while jobs: print(jobs.pop_slice(0,4)) should output 'job1', 'job2', 'job3', 'job4' 'job5', 'job6', 'job7', 'job8' 'job9', 'job10' The idea popped in my mind while thinking about this question. http://stackoverflow.com/questions/18121416/right-split-a-string-into-groups-of-3/18122084 I founded the list comprehensions solutions kind of cumbersome and thought that there should be a simple way to do this kind of stuff. -- http://mail.python.org/mailman/listinfo/python-list Still seems a bit like a solution looking for a problem to me. Why would you want to take four items at a time for a job from an arbitrary part of a list? I agree splitting a string into groups of three looks a bit cumbersome in the example you've given, but a generator could be written quite easily, and would almost certainly be quicker than trying to alter the list in place. Best wishes, N. -- http://mail.python.org/mailman/listinfo/python-list
Re: outputting time in microseconds or milliseconds
In article mailman.349.1375963829.1251.python-l...@python.org, Skip Montanaro s...@pobox.com wrote: When Tim Peters wrote datetime, the world became a better place. Lots of languages and databases have things called datetimes. It's easy to be lulled into thinking that they're all the same, but they're not. They all have slightly different ranges and precisions. Just something to be aware of. -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggestion: PEP for popping slices from lists
On Thursday, August 8, 2013 4:08:13 PM UTC+3, Nicholas wrote: On Thu, Aug 8, 2013 at 12:50 PM, Neatu Ovidiu neat...@gmail.com wrote: On Thursday, August 8, 2013 2:44:05 PM UTC+3, Neatu Ovidiu wrote: On Thursday, August 8, 2013 2:12:53 PM UTC+3, Nicholas wrote: On Thu, Aug 8, 2013 at 11:38 AM, Neatu Ovidiu neat...@gmail.com wrote: But what's your use case? Does it occur often enough that you cannot afford a two-liner like I think uses cases are plenty. The possible cases I can think of would be better served with list comprehensions (what you seem to want is to create lists based on other lists) - but maybe I'm missing something. Could we have one example? N. This can be useful for doing all kinds of basic stuff. For example if you wanted to take 4 items of a list at at a time, do something with them and then update the list. jobs = ['job1', 'job2', 'job3', 'job4', 'job5', 'job6', 'job7', 'job8', 'job9', 'job10'] while jobs: print(jobs.pop_slice(0,4)) should output 'job1', 'job2', 'job3', 'job4' 'job5', 'job6', 'job7', 'job8' 'job9', 'job10' The idea popped in my mind while thinking about this question. http://stackoverflow.com/questions/18121416/right-split-a-string-into-groups-of-3/18122084 I founded the list comprehensions solutions kind of cumbersome and thought that there should be a simple way to do this kind of stuff. -- http://mail.python.org/mailman/listinfo/python-list Still seems a bit like a solution looking for a problem to me. Why would you want to take four items at a time for a job from an arbitrary part of a list? I agree splitting a string into groups of three looks a bit cumbersome in the example you've given, but a generator could be written quite easily, and would almost certainly be quicker than trying to alter the list in place. Best wishes, N. You are perfectly right. But I looked at it more like an improvement in the style of writing solutions and also a natural option because slices are highly present all over in python. -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggestion: PEP for popping slices from lists
On Thu, Aug 8, 2013 at 2:32 PM, Neatu Ovidiu neatu...@gmail.com wrote: On Thursday, August 8, 2013 4:08:13 PM UTC+3, Nicholas wrote: On Thu, Aug 8, 2013 at 12:50 PM, Neatu Ovidiu neat...@gmail.com wrote: On Thursday, August 8, 2013 2:44:05 PM UTC+3, Neatu Ovidiu wrote: On Thursday, August 8, 2013 2:12:53 PM UTC+3, Nicholas wrote: On Thu, Aug 8, 2013 at 11:38 AM, Neatu Ovidiu neat...@gmail.com wrote: But what's your use case? Does it occur often enough that you cannot afford a two-liner like I think uses cases are plenty. The possible cases I can think of would be better served with list comprehensions (what you seem to want is to create lists based on other lists) - but maybe I'm missing something. Could we have one example? N. This can be useful for doing all kinds of basic stuff. For example if you wanted to take 4 items of a list at at a time, do something with them and then update the list. jobs = ['job1', 'job2', 'job3', 'job4', 'job5', 'job6', 'job7', 'job8', 'job9', 'job10'] while jobs: print(jobs.pop_slice(0,4)) should output 'job1', 'job2', 'job3', 'job4' 'job5', 'job6', 'job7', 'job8' 'job9', 'job10' The idea popped in my mind while thinking about this question. http://stackoverflow.com/questions/18121416/right-split-a-string-into-groups-of-3/18122084 I founded the list comprehensions solutions kind of cumbersome and thought that there should be a simple way to do this kind of stuff. -- http://mail.python.org/mailman/listinfo/python-list Still seems a bit like a solution looking for a problem to me. Why would you want to take four items at a time for a job from an arbitrary part of a list? I agree splitting a string into groups of three looks a bit cumbersome in the example you've given, but a generator could be written quite easily, and would almost certainly be quicker than trying to alter the list in place. Best wishes, N. You are perfectly right. But I looked at it more like an improvement in the style of writing solutions and also a natural option because slices are highly present all over in python. I wasn't knocking it. I was just trying to think it through. -- http://mail.python.org/mailman/listinfo/python-list
right adjusted strings containing umlauts
I'd like to print strings right adjusted.
( Python 2.7.3, Linux 3.4.47-2.38-desktop )
from __future__ import print_function
print( '{0:3}'.format( 'a' ) )
a
But if the string contains an Umlaut:
print( '{0:3}'.format( 'ä' ) )
ä
Same with % notation:
print( '%3s' % ( 'a' ) )
a
print( '%3s' % ( 'ä' ) )
ä
For a string with no Umlaut it uses 3 characters, but for an Umlaut
it uses only 2 characters.
I guess it has to to with unicode.
How do I get it right?
TIA
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Re: right adjusted strings containing umlauts
On 2013-08-08, Kurt Mueller kurt.alfred.muel...@gmail.com wrote:
I'd like to print strings right adjusted.
( Python 2.7.3, Linux 3.4.47-2.38-desktop )
from __future__ import print_function
print( '{0:3}'.format( 'a' ) )
a
But if the string contains an Umlaut:
print( '{0:3}'.format( '??' ) )
??
Same with % notation:
print( '%3s' % ( 'a' ) )
a
print( '%3s' % ( '??' ) )
??
For a string with no Umlaut it uses 3 characters, but for an
Umlaut it uses only 2 characters.
I guess it has to to with unicode.
How do I get it right?
You guessed it!
Use unicode strings instead of byte strings, e.g., u
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Re: right adjusted strings containing umlauts
On Thursday, 8 August 2013 15:23:46 UTC+1, Kurt Mueller wrote:
I'd like to print strings right adjusted.
print( '{0:3}'.format( 'ä' ) )
Make both strings unicode
print( u'{0:3}'.format( u'ä' ) )
Why not use rjust for it though?
u'ä'.rjust(3)
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Re: Suggestion: PEP for popping slices from lists
On Thu, Aug 8, 2013 at 6:40 AM, Neatu Ovidiu neatu...@gmail.com wrote: This can be useful for doing all kinds of basic stuff. For example if you wanted to take 4 items of a list at at a time, do something with them and then update the list. jobs = ['job1', 'job2', 'job3', 'job5', 'job6', 'job7', 'job8', 'job9', 'job10'] while jobs: print jobs.pop_slice(0,4) My initial reaction to this is that you want to infer structure where none exists, so why not make the structure explicit? In any case, couldn't you subclass the list type and add a pop_slice method to do what you want? I'm not an iterator maven, but this also seems like something you could mix up from something in the itertools module. Skip -- http://mail.python.org/mailman/listinfo/python-list
Re: right adjusted strings containing umlauts
On 08/08/2013 15:40, Neil Cerutti wrote:
On 2013-08-08, Kurt Mueller kurt.alfred.muel...@gmail.com wrote:
I'd like to print strings right adjusted.
( Python 2.7.3, Linux 3.4.47-2.38-desktop )
from __future__ import print_function
print( '{0:3}'.format( 'a' ) )
a
But if the string contains an Umlaut:
print( '{0:3}'.format( '??' ) )
??
Same with % notation:
print( '%3s' % ( 'a' ) )
a
print( '%3s' % ( '??' ) )
??
For a string with no Umlaut it uses 3 characters, but for an
Umlaut it uses only 2 characters.
I guess it has to to with unicode.
How do I get it right?
You guessed it!
Use unicode strings instead of byte strings, e.g., u
It also matters which actual codepoints you're using in the Unicode
string.
You could have u'ä', which is one codepoint (u'\xE4' or u'\N{LATIN
SMALL LETTER A WITH DIAERESIS}'), or u'ä', which two codepoints
(u'a\u0308' or u'\N{LATIN SMALL LETTER A}\N{COMBINING DIAERESIS}').
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Re: right adjusted strings containing umlauts
Am 08.08.2013 16:43, schrieb jfhar...@gmail.com:
On Thursday, 8 August 2013 15:23:46 UTC+1, Kurt Mueller wrote:
I'd like to print strings right adjusted.
print( '{0:3}'.format( 'ä' ) )
Make both strings unicode
print( u'{0:3}'.format( u'ä' ) )
Why not use rjust for it though?
u'ä'.rjust(3)
In real life there is a list of strings in output_list from a command like:
output_list = shlex.split( input_string, bool_cmnt, bool_posi, )
input_string is from a file, bool_* are either True or False
repr( output_list )
['\xc3\xb6', '\xc3\xbc', 'i', 's', 'f']
which should be printed right aligned.
using:
print( u'{0:3} {1:3} {2:3} {3:3} {4:3}'.format( *output_list ) )
( In real life, the alignement and the width is variable )
How do I prepare output_list the pythonic way to be unicode strings?
What do I do, when input_strings/output_list has other codings like iso-8859-1?
TIA
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Re: right adjusted strings containing umlauts
Kurt Mueller wrote:
Am 08.08.2013 16:43, schrieb jfhar...@gmail.com:
On Thursday, 8 August 2013 15:23:46 UTC+1, Kurt Mueller wrote:
I'd like to print strings right adjusted.
print( '{0:3}'.format( 'ä' ) )
Make both strings unicode
print( u'{0:3}'.format( u'ä' ) )
Why not use rjust for it though?
u'ä'.rjust(3)
In real life there is a list of strings in output_list from a command
like: output_list = shlex.split( input_string, bool_cmnt, bool_posi, )
input_string is from a file, bool_* are either True or False
repr( output_list )
['\xc3\xb6', '\xc3\xbc', 'i', 's', 'f']
which should be printed right aligned.
using:
print( u'{0:3} {1:3} {2:3} {3:3} {4:3}'.format( *output_list ) )
( In real life, the alignement and the width is variable )
How do I prepare output_list the pythonic way to be unicode strings?
What do I do, when input_strings/output_list has other codings like
iso-8859-1?
You have to know the actual encoding. With that information it's easy:
output_list
['\xc3\xb6', '\xc3\xbc', 'i', 's', 'f']
encoding = utf-8
output_list = [s.decode(encoding) for s in output_list]
print output_list
[u'\xf6', u'\xfc', u'i', u's', u'f']
Don't worry that there are still escape codes -- when you print the
individual list items the caracters will show up as expected:
print , .join(output_list)
ö, ü, i, s, f
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Re: right adjusted strings containing umlauts
Kurt Mueller wrote:
Am 08.08.2013 16:43, schrieb jfhar...@gmail.com:
On Thursday, 8 August 2013 15:23:46 UTC+1, Kurt Mueller wrote:
I'd like to print strings right adjusted.
print( '{0:3}'.format( 'ä' ) )
Make both strings unicode
print( u'{0:3}'.format( u'ä' ) )
Why not use rjust for it though?
u'ä'.rjust(3)
In real life there is a list of strings in output_list from a command like:
output_list = shlex.split( input_string, bool_cmnt, bool_posi, )
input_string is from a file, bool_* are either True or False
repr( output_list )
['\xc3\xb6', '\xc3\xbc', 'i', 's', 'f']
which should be printed right aligned.
using:
print( u'{0:3} {1:3} {2:3} {3:3} {4:3}'.format( *output_list ) )
( In real life, the alignement and the width is variable )
How do I prepare output_list the pythonic way to be unicode strings?
What do I do, when input_strings/output_list has other codings like
iso-8859-1?
In general, when reading from an outside device like a file, convert to
unicode immediately, while you still know the encoding used in that
particular file. Then after all processing, worry about alignment only
when you're about to output the string. And at that point, you're
subject to the quirks of the font as well as the quirks of the
encoding of the terminal.
As MRAB has pointed out, sometimes two code points are used to represent
a single character which will end up taking a single column. Likewise
sometimes a single code point will take more than one column to
display. Ideograms are one example, but a font which is not fixed pitch
is another.
If you're going to a standard terminal, all you can do is get close.
This is why there are special functions for gui's to help with
alignment.
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Re: right adjusted strings containing umlauts
Am 08.08.2013 17:44, schrieb Peter Otten: Kurt Mueller wrote: What do I do, when input_strings/output_list has other codings like iso-8859-1? You have to know the actual encoding. With that information it's easy: output_list ['\xc3\xb6', '\xc3\xbc', 'i', 's', 'f'] encoding = utf-8 output_list = [s.decode(encoding) for s in output_list] print output_list [u'\xf6', u'\xfc', u'i', u's', u'f'] How do I get to know the actual encoding? I read from stdin. There can be different encondings. Usually utf8 but also iso-8859-1/latin9 are to be expected. But sys.stdin.encoding sais always 'None'. TIA -- Kurt Mueller -- http://mail.python.org/mailman/listinfo/python-list
Re: Mock pathc question
On Thursday, August 8, 2013 12:04:38 PM UTC+2, Jean-Michel Pichavant wrote:
- Mail original -
Hi
1) I prefer to use start/stop and not the decorator .
2) mock_play is the name of the module where the code belongs
Thanks
Avishay
Sent from my iPhone
You should not neeed to refer to the Calc class using mock_play since it is
defined in the very same file (module).
Possibly mock_play.Calc and Calc are 2 different classes, hence you're not
patching the good one.
Note how you patch mock_play.Calc and then instanciate using self.calc =
Calc()
right before
my_mock = mock.patch('mock_play.Calc',create=True, new=MockCalc)
add
print mock_play.Calc
print Calc
and verify that they are both the very same object.
Cheers,
JM
PS : Please do not top post in this list
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Hi
Here is a working solution:
http://stackoverflow.com/questions/18121084/mock-patch-does-not-work-properly
thanks
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Re: Is it possible to make a unittest decorator to rename a method from x to testx?
On Thursday, August 8, 2013 3:50:47 AM UTC-5, Peter Otten wrote: Peter Otten wrote: Oops, that's an odd class name. Fixing the name clash in Types.__new__() is left as an exercise... I will do some experiments with a custom test loader since I wasn't aware of that as a viable alternative. I am grateful for the responses. -- http://mail.python.org/mailman/listinfo/python-list
Re: right adjusted strings containing umlauts
Now I have this small example:
--
#!/usr/bin/env python
# vim: set fileencoding=utf-8 :
from __future__ import print_function
import sys, shlex
print( repr( sys.stdin.encoding ) )
strg_form = u'{0:3} {1:3} {2:3} {3:3} {4:3}'
for inpt_line in sys.stdin:
proc_line = shlex.split( inpt_line, False, True, )
encoding = utf-8
proc_line = [ strg.decode( encoding ) for strg in proc_line ]
print( strg_form.format( *proc_line ) )
--
$ echo -e a b c d e\na ö u 1 2 | file -
/dev/stdin: UTF-8 Unicode text
$ echo -e a b c d e\na ö u 1 2 | ./align_compact.py
None
a b c d e
a ö u 1 2
$ echo -e a b c d e\na ö u 1 2 | recode utf8..latin9 | file -
/dev/stdin: ISO-8859 text
$ echo -e a b c d e\na ö u 1 2 | recode utf8..latin9 | ./align_compact.py
None
a b c d e
Traceback (most recent call last):
File ./align_compact.py, line 13, in module
proc_line = [ strg.decode( encoding ) for strg in proc_line ]
File /usr/lib64/python2.7/encodings/utf_8.py, line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xf6 in position 0: invalid
start byte
muk@mcp20:/sw/prog/scripts/text_manip
How do I handle this two inputs?
TIA
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Re: Is it possible to make a unittest decorator to rename a method from x to testx?
On Thursday, August 8, 2013 3:04:30 AM UTC-5, Terry Reedy wrote: I cannot help but note that this is *more* typing. But anyhow, something It wasn't so much about the typing so much as having test in front of everything. It's a problem particular to me since I'm writing code that, well, runs experiments. So the word test is already all over the place. I would even prefer if I could do away with assuming everything starting with test is a unittest, but I didn't think I could; it looks like Peter Otten got me in the right direction. like this might work. def test(f): f.__class__.__dict__['test_'+f.__name__] might work. Or maybe for the body just setattr(f.__class__, 'test_'+f.__name__) Just for giggles I can mess around with those exact lines, but I did get spanked trying to do something similar. I couldn't reference __class__ for some reason (Python 2.7 problem?). -- http://mail.python.org/mailman/listinfo/python-list
Re: right adjusted strings containing umlauts
Kurt Mueller wrote: Am 08.08.2013 17:44, schrieb Peter Otten: Kurt Mueller wrote: What do I do, when input_strings/output_list has other codings like iso-8859-1? You have to know the actual encoding. With that information it's easy: output_list ['\xc3\xb6', '\xc3\xbc', 'i', 's', 'f'] encoding = utf-8 output_list = [s.decode(encoding) for s in output_list] print output_list [u'\xf6', u'\xfc', u'i', u's', u'f'] How do I get to know the actual encoding? I read from stdin. There can be different encondings. Usually utf8 but also iso-8859-1/latin9 are to be expected. But sys.stdin.encoding sais always 'None'. Even with $ cat funny_pic.jpg | ./mypythonscript.py you could successfully (i. e. no errors) decode stdin using iso-8859-1. So unfortunately you have to guess. A simple strategy is to try utf-8 and fall back to iso-8859-1 if that fails with a UnicodeDecodeError. There's also https://pypi.python.org/pypi/chardet -- http://mail.python.org/mailman/listinfo/python-list
Re: right adjusted strings containing umlauts
On Thu, Aug 8, 2013 at 5:16 PM, Kurt Mueller kurt.alfred.muel...@gmail.com wrote: Am 08.08.2013 17:44, schrieb Peter Otten: Kurt Mueller wrote: What do I do, when input_strings/output_list has other codings like iso-8859-1? You have to know the actual encoding. With that information it's easy: output_list ['\xc3\xb6', '\xc3\xbc', 'i', 's', 'f'] encoding = utf-8 output_list = [s.decode(encoding) for s in output_list] print output_list [u'\xf6', u'\xfc', u'i', u's', u'f'] How do I get to know the actual encoding? I read from stdin. There can be different encondings. Usually utf8 but also iso-8859-1/latin9 are to be expected. But sys.stdin.encoding sais always 'None'. If you can switch to Python 3, life becomes a LOT easier. The Python 3 input() function (which does the same job as raw_input() from Python 2) returns a Unicode string, meaning that it takes care of encodings for you. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
RE: Newbie: static typing?
Rui Maciel wrote: Chris Angelico wrote: On Tue, Aug 6, 2013 at 10:01 AM, Rui Maciel rui.mac...@gmail.com wrote: It would be nice if some functions threw an error if they were passed a type they don't support or weren't designed to handle. That would avoid having to deal with some bugs which otherwise would never happen. To avoid this sort of error, I've been testing arguments passed to some functions based on their type, and raising TypeError when necessariy, but surely there must be a better, more pythonic way to handle this issue. def add_three_values(x,y,z): return x+y+z Do you want to test these values for compatibility? Remember, you could take a mixture of types, as most of the numeric types can safely be added. You can also add strings, or lists, but you can't mix them. And look! It already raises TypeError if it's given something unsuitable: If the type problems aren't caught right away when the invalid types are passed to a function then the problem may only manifest itself in some far away point in the code, making this bug needlessly harder to spot and fix, and making the whole ordeal needlessly too time consuming. Rui Maciel This can be true, but in personal experience does not happen often. I will say that dynamic typing ends up usually being more future proof as I can later create a similar object (but not in the same inheritance hierarchy) that will work with older functions because the functions don't look for certain types but rather just rely on duck typing. I find this especially useful when testing or mocking. I can create a test object and attach methods/attributes to the test object to duck type as I desire to test the my desired code. I think the following reads are very interesting for people new to Python from other languages (not just Java). http://dirtsimple.org/2004/12/python-is-not-java.html (and the flip side) http://dirtsimple.org/2004/12/java-is-not-python-either.html ~Ramit This email is confidential and subject to important disclaimers and conditions including on offers for the purchase or sale of securities, accuracy and completeness of information, viruses, confidentiality, legal privilege, and legal entity disclaimers, available at http://www.jpmorgan.com/pages/disclosures/email. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is it possible to make a unittest decorator to rename a method from x to testx?
On 8/8/13 12:17 PM, adam.pre...@gmail.com wrote: On Thursday, August 8, 2013 3:50:47 AM UTC-5, Peter Otten wrote: Peter Otten wrote: Oops, that's an odd class name. Fixing the name clash in Types.__new__() is left as an exercise... I will do some experiments with a custom test loader since I wasn't aware of that as a viable alternative. I am grateful for the responses. If you can use another test runner, they often have more flexible and powerful ways to do everything. nosetests will let you use a __test__ attribute, for example, to mark tests. Your decorator could simply assign that attribute on the test methods. You'd still write your tests using the unittest base classes, but run them with nose. --Ned. -- http://mail.python.org/mailman/listinfo/python-list
Re: right adjusted strings containing umlauts
Kurt Mueller wrote:
Now I have this small example:
--
#!/usr/bin/env python
# vim: set fileencoding=utf-8 :
from __future__ import print_function
import sys, shlex
print( repr( sys.stdin.encoding ) )
strg_form = u'{0:3} {1:3} {2:3} {3:3} {4:3}'
for inpt_line in sys.stdin:
proc_line = shlex.split( inpt_line, False, True, )
encoding = utf-8
proc_line = [ strg.decode( encoding ) for strg in proc_line ]
print( strg_form.format( *proc_line ) )
--
$ echo -e a b c d e\na ö u 1 2 | file -
/dev/stdin: UTF-8 Unicode text
$ echo -e a b c d e\na ö u 1 2 | ./align_compact.py
None
a b c d e
a ö u 1 2
$ echo -e a b c d e\na ö u 1 2 | recode utf8..latin9 | file -
/dev/stdin: ISO-8859 text
$ echo -e a b c d e\na ö u 1 2 | recode utf8..latin9 | ./align_compact.py
None
a b c d e
Traceback (most recent call last):
File ./align_compact.py, line 13, in module
proc_line = [ strg.decode( encoding ) for strg in proc_line ]
File /usr/lib64/python2.7/encodings/utf_8.py, line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xf6 in position 0:
invalid start byte
muk@mcp20:/sw/prog/scripts/text_manip
How do I handle this two inputs?
Once you're using pipes, you've given up any hope that the terminal will
report a useful encoding, so I'm not surprised you're getting None for
sys.stdin.encoding()
So you can either do as others have suggested, and guess, or you can get
the information explicitly, say from argv. In any case you'll need a
different way to assign encoding =
--
DaveA
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Re: paramiko installation problem
import sys
print (sys.path)
returns:
['C:\\Python33\\Lib\\idlelib',
'C:\\Python33\\lib\\site-packages\\pip-1.4-py3.3.egg',
'C:\\Windows\\system32\\python33.zip', 'C:\\Python33\\DLLs',
'C:\\Python33\\lib', 'C:\\Python33', 'C:\\Python33\\lib\\site-packages']
then if i type:
sys.path.append('C:\\Python33\\Lib\\site-packages\\paramiko')
and then again..
print (sys.path)
returns:
['C:\\Python33\\Lib\\idlelib',
'C:\\Python33\\lib\\site-packages\\pip-1.4-py3.3.egg',
'C:\\Windows\\system32\\python33.zip', 'C:\\Python33\\DLLs',
'C:\\Python33\\lib', 'C:\\Python33', 'C:\\Python33\\lib\\site-packages',
'C:\\Python33\\Lib\\site-packages\\paramiko']
then if i type:
import paramiko
i get this:
Traceback (most recent call last):
File pyshell#3, line 1, in module
import paramiko
File C:\Python33\lib\site-packages\paramiko\__init__.py, line 64, in
module
from transport import SecurityOptions, Transport
File C:\Python33\Lib\site-packages\paramiko\transport.py, line 296
except socket.error, e:
^
SyntaxError: invalid syntax
--
when i close and reopen IDLE, then 'C:\\Python33\\Lib\\site-packages\\paramiko'
is getting deleted.
If my problem from the first post above has to do something with the path, then
what exactly should i do?
I would also like to ask here something extra.. :)
in system enviroment variables my path contains the following things:
C:\Python33\Lib\site-packages\PyQt5;C:\Python33\Scripts\;C:\Python33\;C:\Program
Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\Common
Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common
Files\Microsoft Shared\Windows
Live;C:\Python33\Lib\site-packages\paramiko;C:\Program Files (x86)\Intel\iCLS
Client\;C:\Program Files\Intel\iCLS
Client\;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program
Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program
Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files
(x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files
(x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files
(x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL
SDK\2.0\bin\x64;C:\Program Files (x86)\QuickTime\QTSystem\;C:\Program
Files\NEST;C:\Program Files (x86)\Windows Live\Shared
so what exactly is the difference between this path and the above.?
A huge THANKS for the one who will find the courage to answer to this newbie !
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Re: paramiko installation problem
On 08/08/2013 19:04, D. Xenakis wrote:
import sys
print (sys.path)
returns:
['C:\\Python33\\Lib\\idlelib',
'C:\\Python33\\lib\\site-packages\\pip-1.4-py3.3.egg',
'C:\\Windows\\system32\\python33.zip', 'C:\\Python33\\DLLs',
'C:\\Python33\\lib', 'C:\\Python33', 'C:\\Python33\\lib\\site-packages']
then if i type:
sys.path.append('C:\\Python33\\Lib\\site-packages\\paramiko')
and then again..
print (sys.path)
returns:
['C:\\Python33\\Lib\\idlelib',
'C:\\Python33\\lib\\site-packages\\pip-1.4-py3.3.egg',
'C:\\Windows\\system32\\python33.zip', 'C:\\Python33\\DLLs',
'C:\\Python33\\lib', 'C:\\Python33', 'C:\\Python33\\lib\\site-packages',
'C:\\Python33\\Lib\\site-packages\\paramiko']
then if i type:
import paramiko
i get this:
Traceback (most recent call last):
File pyshell#3, line 1, in module
import paramiko
File C:\Python33\lib\site-packages\paramiko\__init__.py, line 64, in
module
from transport import SecurityOptions, Transport
File C:\Python33\Lib\site-packages\paramiko\transport.py, line 296
except socket.error, e:
^
SyntaxError: invalid syntax
[snip]
That syntax is supported in Python 2. In Python 3 it would be:
except socket.error as e:
I don't think that paramiko supports Python 3 (yet?).
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How Do I get my Python script to attach multiple files and send as a single email
I have a dilemma I cant figure out how to send multiple files as an attachment
to my email using this script. I can only send a single file attachment .
Help!!! Here is my script.
All filename's are txt files.
fo = with open(filename,'rb')
fo1 = open(filename2,'rb')
fo2= open(filename3, 'rb')
fo3= open(filename4,'rb')
fo4=open(filename5, rb)
filecontent = fo.read()
filecontent1 = fo1.read()
filecontent2 = fo2.read()
filecontent3 = fo3.read()
filecontent4= fo4.read()
encodedcontent = base64.b64encode(filecontent) # base64
encodedcontent1 = base64.b64encode(filecontent1) # base64
encodedcontent2 = base64.b64encode(filecontent2) # base64
encodedcontent3 = base64.b64encode(filecontent3) # base64
encodedcontent4 = base64.b64encode(filecontent4) # base64
sender = 'm...@mysite.com'
reciever = 'm...@mymail.com'
marker = AUNIQUEMARKER
body =
Hi
This is Sam, I have a some files containing some tickets for you.
Good day
:)
# Define the main headers.
part1 = From: Master Tickets ams...@mysite.com
To: To Samuel Kamau m...@myemail.com
Subject: Sending Attachement
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary=%s
--%s
% (marker, marker)
# Define the message action
part2 = Content-Type: text/plain
Content-Transfer-Encoding:8bit
%s
--%s
% (body,marker)
# Define the attachment section
part3 = Content-Type: multipart/mixed; name=\%s\
Content-Transfer-Encoding:base64
Content-Disposition: attachment; filename=%s
%s
--%s--
%(filename, filename, encodedcontent, marker)
message = part1 + part2 + part3
try:
smtpObj = smtplib.SMTP('mx.usa.net')
smtpObj.sendmail(sender, reciever, message,)
print Successfully sent email
except Exception:
print Error: unable to send email
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Re: Is it possible to make a unittest decorator to rename a method from x to testx?
On 8/8/2013 12:20 PM, adam.pre...@gmail.com wrote: On Thursday, August 8, 2013 3:04:30 AM UTC-5, Terry Reedy wrote: def test(f): f.__class__.__dict__['test_'+f.__name__] Sorry, f.__class__ is 'function', not the enclosing class. A decorator for a method could not get the enclosing class name until 3.3, when it would be part of f.__qualname__. Use one of the other suggestions. Just for giggles I can mess around with those exact lines, but I did get spanked trying to do something similar. I couldn't reference __class__ for some reason (Python 2.7 problem?). In 2.x, old-style classes and instances thereof do not have .__class__. All other objects do, as far as I know. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: How Do I get my Python script to attach multiple files and send as a single email
On 08/08/2013 12:05 PM, wachk...@gmail.com wrote: I have a dilemma I cant figure out how to send multiple files as an attachment to my email using this script. I can only send a single file attachment . Help!!! Here is my script. All filename's are txt files. There is a standard Python module named email which you should look at. It can build an email with all the parts, alternates, and attachments you want. Then you send the resulting message using your smtplib code. The email module is large and complex, but reasonably easy to learn (following the documentation examples). It's far, FAR, easier than rolling your message, especially when attachments are needed. Gary Herron -- http://mail.python.org/mailman/listinfo/python-list
Re: paramiko installation problem
Wow thats bad news. Any workaround? What im trying to succeed here is create one SSH tunnel, so that i can connect from a python script running on my pc, to a remote MySQL database running on my Host and id like to stick with Python 3.3 . Any thoughts? -- http://mail.python.org/mailman/listinfo/python-list
Re: How Do I get my Python script to attach multiple files and send as a single email
On Thu, Aug 8, 2013 at 1:05 PM, wachk...@gmail.com wrote: I have a dilemma I cant figure out how to send multiple files as an attachment to my email using this script. I can only send a single file attachment . Help!!! Here is my script. You just need to repeat part3 for each attachment. Also the content type in part3 should be the content type of the attachment, not multipart/mixed. You might also want to take a look at the email package in the standard library which will do a lot of this stuff for you. http://docs.python.org/3/library/email.html -- http://mail.python.org/mailman/listinfo/python-list
Re: How Do I get my Python script to attach multiple files and send as a single email
On Thu, Aug 8, 2013 at 3:19 PM, Gary Herron gary.her...@islandtraining.com wrote: On 08/08/2013 12:05 PM, wachk...@gmail.com wrote: I have a dilemma I cant figure out how to send multiple files as an attachment to my email using this script. I can only send a single file attachment . Help!!! Here is my script. All filename's are txt files. There is a standard Python module named email which you should look at. It can build an email with all the parts, alternates, and attachments you want. Then you send the resulting message using your smtplib code. The email module is large and complex, but reasonably easy to learn (following the documentation examples). It's far, FAR, easier than rolling your message, especially when attachments are needed. Gary Herron -- http://mail.python.org/mailman/listinfo/python-list Here is a good example: http://stackoverflow.com/questions/3362600/how-to-send-email-attachments-with-python I found it using the following google search: python send email using smtp with multiple attachment It was the second result. Google is your friend ;) -- Joel Goldstick http://joelgoldstick.com -- http://mail.python.org/mailman/listinfo/python-list
Python 3 and SSH Tunnel
HOWTO anyone? What im trying to succeed here is create one SSH tunnel, so that i can connect from a python script running on my pc, to a remote MySQL database running on my Host and id like to stick with Python 3.3 . I contacted my host and he informed me that this is the only way. I tried pycrypto + paramiko but from what i have noticed, paramiko is not Python 3.3 ready. Any thoughts? -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggestion: PEP for popping slices from lists
On 8/8/2013 7:44 AM, Neatu Ovidiu wrote: Objection 1. People usually want to chunk sequences, not lists specifically. We now try to add new features that work with iterators and iterables generally, not just lists. This can be useful for doing all kinds of basic stuff. For example if you wanted to take 4 items of a list at at a time, do something with them and then update the list. jobs = ['job1', 'job2', 'job3', 'job4', 'job5', 'job6', 'job7', 'job8', 'job9', 'job10'] while jobs: print(jobs.pop_slice(0,4)) should output 'job1', 'job2', 'job3', 'job4' 'job5', 'job6', 'job7', 'job8' 'job9', 'job10' Objection 2. Usually when one wants to do this sort of thing, one wants the list either be intact or empty at the end. Emptying it chunk by chunk is worse than useless because it turns an O(n) process into an O(n*n) process. The same is true of destructively iterating through a list with .pop(0). When I proposed the addition of .pop(), I meant it as the inverses of .append and did not include the (optional) index parameter. It is seldom used and usually only once, to remove a single leading item. The addition of iterators, which occurred *after* the addition of .pop, replaced some uses of .pop(0). For instance first = mylist.pop(0) # O(N) operation for item in mylist: process(first, item) del mylist can, since 2.2, be written as it = iter(mylist) first = next(it) # O(1) operation for item in it: process(first, item) del mylist If .pop were being added today, I would argue against including the index parameter. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 3 and SSH Tunnel
On Thu, Aug 8, 2013 at 2:30 PM, D. Xenakis gouzouna...@hotmail.com wrote: HOWTO anyone? What im trying to succeed here is create one SSH tunnel, so that i can connect from a python script running on my pc, to a remote MySQL database running on my Host and id like to stick with Python 3.3 . http://lmgtfy.com/?q=python3+ssh+tunnel First hit: http://zeromq.github.io/pyzmq/ssh.html which says, in part: pexpect has no Python3 support at this time, so Python 3 users should get Thomas Kluyver’s pexpect-u fork. Also, search PyPI for tunnel. There might well be something useful there. Skip -- http://mail.python.org/mailman/listinfo/python-list
Re: beginner question (True False help)
On 8/8/2013 7:41 AM, Chris Angelico wrote:
On Thu, Aug 8, 2013 at 7:20 AM, wxjmfa...@gmail.com wrote:
def z2():
... letters = 'abc'
... while True:
... c = input('letter: ')
... if c not in letters:
... print('end, fin, Schluss')
... break
... else:
... print('do stuff')
Minor quibble: I don't like having a hard exit followed by an else.
Whereas I tend to prefer to have the two alternatives cleanly marked as
alternatives by both being indented the same.
Many alternatives are not so trivial as the above. I remember reading
one snippet in the CPython codebase where the 'else' was omitted and the
if clause subdivided into about three paths. It took at least a minute
to determine that all paths terminated in such a way that there really
was an inplied else. How much easier it would have been to read the code
if the author had explicitly types the 'else'.
If the if branch will unconditionally quit the loop (with a break,
here, but could also be a return, a thrown exception, etc etc), I
would prefer to see the else removed and its code unindented one
level. Maybe this is just personal preference, though, learned from
assembly language programming where a block if looks something like
this:
; if x == y:
CMP x,y
JNZ .else
; Code for x == y
JMP .endif
.else:
; Code for else
.endif
Putting an unconditional departure in the x == y branch makes the
JMP .endif redundant.
Python is not assembly ;-). 3.3 effectively ignores the extraneous
'else:'. Either way, if the condition is false, control jumps to the
second print. For what little it matters, the bytecode is the same length.
def f():
while True:
if a:
b = 1
break
else:
b = 2
dis(f)
2 0 SETUP_LOOP 25 (to 28)
3 3 LOAD_GLOBAL 0 (a)
6 POP_JUMP_IF_FALSE 19
4 9 LOAD_CONST 1 (1)
12 STORE_FAST 0 (b)
5 15 BREAK_LOOP
16 JUMP_ABSOLUTE3
719 LOAD_CONST 2 (2)
22 STORE_FAST 0 (b)
25 JUMP_ABSOLUTE3
28 LOAD_CONST 0 (None)
31 RETURN_VALUE
def f():
while True:
if a:
b = 1
break
b = 2
dis(f)
2 0 SETUP_LOOP 25 (to 28)
3 3 LOAD_GLOBAL 0 (a)
6 POP_JUMP_IF_FALSE 19
4 9 LOAD_CONST 1 (1)
12 STORE_FAST 0 (b)
5 15 BREAK_LOOP
16 JUMP_FORWARD 0 (to 19)
619 LOAD_CONST 2 (2)
22 STORE_FAST 0 (b)
25 JUMP_ABSOLUTE3
28 LOAD_CONST 0 (None)
31 RETURN_VALUE
--
Terry Jan Reedy
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Re: right adjusted strings containing umlauts
On 8/8/2013 11:24 AM, Kurt Mueller wrote:
print( u'{0:3} {1:3} {2:3} {3:3} {4:3}'.format( *output_list ) )
Using autonumbering feature, same as
print( u'{:3} {:3} {:3} {:3} {:3}'.format( *output_list ) )
print( (u' '.join([u'{:3}']*5)).format(*output_list) )
print( (u' '.join([u'{:3}']*len(output_list))).format(*output_list) )
--
Terry Jan Reedy
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Re: Suggestion: PEP for popping slices from lists
On 8 August 2013 21:03, Terry Reedy tjre...@udel.edu wrote: If .pop were being added today, I would argue against including the index parameter. GASP! That's no fair! 1) When using pop you normally want to keep the mutability available, so iter(mylist) is a no-go. 2) When using the index, it's often somewhere in the middle that you're popping from 3) There's always deque for deques That said you can always use blist which has O(log n) time complexity for these pops. It's a hassle it's not stdlib :/. -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggestion: PEP for popping slices from lists
On 2013-08-08 22:32, Joshua Landau wrote: On 8 August 2013 21:03, Terry Reedy tjre...@udel.edu wrote: If .pop were being added today, I would argue against including the index parameter. 3) There's always deque for deques Unless you have pre-2.4 code, in which case I'm glad .pop() was included (but in this hypothetical world, we'd have a deque in pre-2.4 too :-D -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: Suggestion: PEP for popping slices from lists
On 8/8/2013 5:32 PM, Joshua Landau wrote: On 8 August 2013 21:03, Terry Reedy tjre...@udel.edu wrote: If .pop were being added today, I would argue against including the index parameter. GASP! That's no fair! 1) When using pop you normally want to keep the mutability available, so iter(mylist) is a no-go. 2) When using the index, it's often somewhere in the middle that you're popping from I have never done that and I do not believe I have ever seen that. It certainly is extremely rare in my experience. Removing an item *after* looking at it is something different. for i in range(len(mylist), -1, -1): if pred(mylist[i]): del mylist[i] -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: Issues with if and elif statements in 3.3
WOW as if it was something as easy as that,i had been looking for awhile on what i was doing wrong. as it seems i just don't know my way around if statements at all, thank a bunch for this. makes everything else i have been code work thanks again -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 3 and SSH Tunnel
On Thu, Aug 8, 2013 at 8:30 PM, D. Xenakis gouzouna...@hotmail.com wrote: HOWTO anyone? What im trying to succeed here is create one SSH tunnel, so that i can connect from a python script running on my pc, to a remote MySQL database running on my Host and id like to stick with Python 3.3 . I contacted my host and he informed me that this is the only way. I tried pycrypto + paramiko but from what i have noticed, paramiko is not Python 3.3 ready. I'm not sure what exactly is going on here, but why not simply establish a tunnel using ssh(1) and then invoke your Python script separately? You simply point your script at a database on localhost, after establishing a tunnel from local 3306 to remote localhost:3306. No need to play with Python crypto. Alternatively, can you use PostgreSQL instead? :) ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 3 and SSH Tunnel
HOWTO anyone? What im trying to succeed here is create one SSH tunnel, so that i can connect from a python script running on my pc, to a remote MySQL database running on my Host and id like to stick with Python 3.3 . I contacted my host and he informed me that this is the only way. I tried pycrypto + paramiko but from what i have noticed, paramiko is not Python 3.3 ready. I'm not sure what exactly is going on here, but why not simply establish a tunnel using ssh(1) and then invoke your Python script separately? You simply point your script at a database on localhost, after establishing a tunnel from local 3306 to remote localhost:3306. No need to play with Python crypto. Alternatively, can you use PostgreSQL instead? :) ChrisA Yes you are right. I've played with putty to achieve this but to be honest i'd like something more efficient. Opening putty everytime and making all the connection settings etc, and then running the programm, is kinda messy. Id like this to be done in an automatic way from the program so that things roll easy. I thought maybe i should find a way how to call and run a batch file from inside my python program or a powershell command, but i do not know even if that could work for the ssh tunneling. any ideas? -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 3 and SSH Tunnel
Alternatively, can you use PostgreSQL instead? :) Yes there is such an option to be honest. Would that be helpfull instead of MySQL? -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 3 and SSH Tunnel
On Fri, Aug 9, 2013 at 1:46 AM, D. Xenakis gouzouna...@hotmail.com wrote: I've played with putty to achieve this but to be honest i'd like something more efficient. Opening putty everytime and making all the connection settings etc, and then running the programm, is kinda messy. Id like this to be done in an automatic way from the program so that things roll easy. I thought maybe i should find a way how to call and run a batch file from inside my python program or a powershell command, but i do not know even if that could work for the ssh tunneling. You should at very least be able to save PuTTY's settings under some name. Once you've done that, check PuTTY's docs for a way to invoke it with particular saved settings. I'm pretty sure there's a way to do that. The program can then invoke that as a background process, then go on to do whatever you need. Be aware, though, that you'll need to set up passwordless access (with a keypair) if you're to fully automate the process. But you may have already done that. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 3 and SSH Tunnel
On Fri, Aug 9, 2013 at 1:50 AM, D. Xenakis gouzouna...@hotmail.com wrote: Alternatively, can you use PostgreSQL instead? :) Yes there is such an option to be honest. Would that be helpfull instead of MySQL? It would, mainly because it's simply a better database engine. Everything to do with tunneling is going to be the same, save that you use port 5432 instead of 3306. But check if you can configure remote access directly on PostgreSQL. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Using sudo to write to a file as root from a script
Hi I'm trying to write a script that writes some content to a file root through sudo, but it's not working at all. I am using: channel = 'stable' config_file = '/opt/ldg/etc/channel.conf' command = ['echo', '-n', channel, '|', 'sudo', 'tee', config_file] p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, _ = p.communicate() But it seems as if this isn't doing anything. I just want to write the contents of the variable channel to the file /opt/ldg/etc/channel.conf. But whatever I try just doesn't work. Can anyone offer any pointers? Cheers Adam -- http://mail.python.org/mailman/listinfo/python-list
Re: [tkinter] trouble running imported modules in main program
On Thursday, August 8, 2013 1:13:48 AM UTC-4, David wrote: On 8 August 2013 14:06, snakeinmyboot mikelha...@gmail.com wrote: for REAL you guys...wtf does this even mean lol. what is a boilerplate test code? Did you try at all to find the answer to this yourself? I ask because it took me only a few seconds to go to wikipedia and search for boilerplate find this for you: http://en.wikipedia.org/wiki/Boilerplate_code Tip: To successfully use forums like this one (where a lot of very smart people read), the more care/effort/thought you demonstrate that you tried to solve your issue before asking, the more likely you are to receive a response. I did read that article but I couldnt really figure out how to apply it to the code he was giving as an example of making it conditional. -- http://mail.python.org/mailman/listinfo/python-list
Re: Using sudo to write to a file as root from a script
On Thu, 08 Aug 2013 23:11:09 -0500, Adam Mercer wrote: Hi I'm trying to write a script that writes some content to a file root through sudo, but it's not working at all. I am using: channel = 'stable' config_file = '/opt/ldg/etc/channel.conf' command = ['echo', '-n', channel, '|', 'sudo', 'tee', config_file] p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, _ = p.communicate() But it seems as if this isn't doing anything. I just want to write the contents of the variable channel to the file /opt/ldg/etc/channel.conf. But whatever I try just doesn't work. Can anyone offer any pointers? Do you find anything with: $ grep sudo /var/log/auth.log (you may need to specify a different log) Is the process that's trying to use the sudo command allowed to do so without a password? man sudoers Note - after editing /etc/sudoers you must set the permissions back to 440 -- Denis McMahon, denismfmcma...@gmail.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Using sudo to write to a file as root from a script
On 9 August 2013 14:11, Adam Mercer ramer...@gmail.com wrote: I'm trying to write a script that writes some content to a file root through sudo, but it's not working at all. I am using: [...] At a quick glance, I have a couple of suggestions. command = ['echo', '-n', channel, '|', 'sudo', 'tee', config_file] sudo doesn't work like this. It doesn't read from standard input. You need to supply the command as an argument to sudo. Get the sudo syntax correct by learning to use it in a shell (eg terminal running bash ) before trying to use it from python code. Also, I think that passing the pipe character '|' as an argument to Popen is not the correct way to use pipes. So, if you figure out how to use sudo without '|' you will solve both these issues. -- http://mail.python.org/mailman/listinfo/python-list
Re: [tkinter] trouble running imported modules in main program
On 9 August 2013 14:28, snakeinmyboot mikelha...@gmail.com wrote: On Thursday, August 8, 2013 1:13:48 AM UTC-4, David wrote: On 8 August 2013 14:06, snakeinmyboot mikelha...@gmail.com wrote: Did you try at all to find the answer to this yourself? I ask because it took me only a few seconds to go to wikipedia and search for boilerplate find this for you: http://en.wikipedia.org/wiki/Boilerplate_code Tip: To successfully use forums like this one (where a lot of very smart people read), the more care/effort/thought you demonstrate that you tried to solve your issue before asking, the more likely you are to receive a response. I did read that article but I couldnt really figure out how to apply it to the code he was giving as an example of making it conditional. Did you try the research method I gave you in my previous answer? -- http://mail.python.org/mailman/listinfo/python-list
Re: Is it possible to make a unittest decorator to rename a method from x to testx?
On Thursday, August 8, 2013 3:50:47 AM UTC-5, Peter Otten wrote: Peter Otten wrote: Oops, that's an odd class name. Fixing the name clash in Types.__new__() is left as an exercise... Interesting, I got __main__.T, even though I pretty much just tried your code wholesale. For what it's worth, I'm using Python 2.7. I'm glad to see that code since I learned a lot of tricks from it. -- http://mail.python.org/mailman/listinfo/python-list
Resolving import errors reported by PyLint in modules using Python.NET
PyLint can't figure out imports of .NET code being referenced in my Python scripts that use Python.NET. I can kind of see why; you have to evaluate some clr.AddReference calls for the imports to even succeed. I wonder if I have any recourse. Generally, to import a DLL you have to do a few things. I guess for an example I'll import a .NET string: import clr# Python .NET common-language runtime module, the important part of it all clr.AddReference(System) from System import String # .NET System.String can = String(Spam) PyLint is not amused: F: 4, 0: Unable to import 'System' (import-error) I wondered if there were any tricks to make it work. I don't want to just ignore import-error, either by explicitly telling pylint to ignore them, or be getting complacent in seeing them all the time. I am also kind of curious if PyLint will expose new problems if it's able to figure out more things after successfully passing the imports. I wouldn't really know. -- http://mail.python.org/mailman/listinfo/python-list
Re: Resolving import errors reported by PyLint in modules using Python.NET
On Thu, Aug 8, 2013 at 10:17 PM, adam.pre...@gmail.com wrote: PyLint can't figure out imports of .NET code being referenced in my Python scripts that use Python.NET. I can kind of see why; you have to evaluate some clr.AddReference calls for the imports to even succeed. I wonder if I have any recourse. Generally, to import a DLL you have to do a few things. I guess for an example I'll import a .NET string: import clr# Python .NET common-language runtime module, the important part of it all clr.AddReference(System) from System import String # .NET System.String can = String(Spam) PyLint is not amused: F: 4, 0: Unable to import 'System' (import-error) I wondered if there were any tricks to make it work. I don't want to just ignore import-error, either by explicitly telling pylint to ignore them, or be getting complacent in seeing them all the time. I am also kind of curious if PyLint will expose new problems if it's able to figure out more things after successfully passing the imports. I wouldn't really know. Are you using Python.NET or IronPython? IronPython is reasonably well supported, and it looks like there's a patch you can use to get PyLint working on it (see http://mail.python.org/pipermail/ironpython-users/2012-June/016099.html ). Not sure what's going on with Python.NET -- http://mail.python.org/mailman/listinfo/python-list
[issue15301] os.chown: OverflowError: Python int too large to convert to C long
Larry Hastings added the comment: Benjamin, do you want my elaborate fix in for 2.7? It means adding two new converters, one for pid and one for gid, and switching everything that takes pid/gid arguments to use those. -- nosy: +benjamin.peterson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15301 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15301] os.chown: OverflowError: Python int too large to convert to C long
Larry Hastings added the comment: Now fixed in trunk. I am waiting to hear from Georg and the only-recently-pinged Benjamin to see if they want these fixes in 3.3 or 2.7. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15301 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15301] os.chown: OverflowError: Python int too large to convert to C long
Roundup Robot added the comment: New changeset f871f8662509 by Larry Hastings in branch 'default': Issue #15301: Parsing fd, uid, and gid parameters for builtins http://hg.python.org/cpython/rev/f871f8662509 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15301 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18290] json encoder does not support JSONP/JavaScript safe escaping
Serhiy Storchaka added the comment: Embedding JSON inside script tag doesn't differ from embedding any string in some format (i.e. JSON in Python string, Python sources in HTML, or XML in a shell script). We just escape characters which have special meaning. I propose close this issue because embedding JSON (as any other generated code) in inline JavaScript can be done very easily with a sequence of string replaces. This has no relations to the json module. -- status: open - pending ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18290 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15301] os.chown: OverflowError: Python int too large to convert to C long
Benjamin Peterson added the comment: I think we should leave 2.7 at rest for the moment. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15301 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15301] os.chown: OverflowError: Python int too large to convert to C long
Serhiy Storchaka added the comment: The original issue was fixed in issue4591. Larry's patch only adds support of PyNumber_Index() and refactors already existing uid/gid converters. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15301 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8713] multiprocessing needs option to eschew fork() under Linux
Ned Deily added the comment: Richard, can you say what failed on the OS X 10.4 (Tiger) buildbot? FWIW, I tested b3620777f54c.diff (and commented out the darwin skip of test_multiprocessing_forkserver) on OS X 10.4, 10.5, and 10.8. There were no failures on any of them. The only vaguely suspicious message when running with -v was: ./python -m test -v test_multiprocessing_forkserver [...] test_semaphore_tracker (test.test_multiprocessing_forkserver.TestSemaphoreTracker) ... [semaphore_tracker] '/mp18203-0': [Errno 22] Invalid argument [semaphore_tracker] '/mp18203-1': successfully unlinked ok [...] -- Ran 233 tests in 97.162s OK (skipped=5) # on 32-bit 'largest assignable fd number is too small' OK (skipped=4) # on 64-bit 1 test OK. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8713 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18682] [PATCH] remove bogus codepath from pprint._safe_repr
New submission from Michal Vyskocil: pprint._safe_repr for type str uses much slower codepath by default, which does not makes a sense in Python3 context. Instead of simply using repr, it check the existence of 'locale' in sys.modules and if found, it goes one-by-one-char call str.isalpha() on each and apply the quoting for non-alpha chars. This is extremely slow, but as locale is usually in sys.modules, it's used by default. The point of such code was because in python2, str.isalpha() depends on locale, so for locale-aware Python builds, there was a different path needed. But this does not apply for Python3, where all strings are unicode, so .isaplha() is not locale sensitive anymore. -- components: Library (Lib) files: pprint-remove-bogus-code.patch keywords: patch messages: 194652 nosy: mvyskocil priority: normal severity: normal status: open title: [PATCH] remove bogus codepath from pprint._safe_repr type: performance Added file: http://bugs.python.org/file31193/pprint-remove-bogus-code.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18682 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18682] [PATCH] remove bogus codepath from pprint._safe_repr
Michal Vyskocil added the comment: This is simple code checks if .isalnum is or is not locale sensitive and a small measurement of how much is the repr faster, compared to old codepath. BTW: python3 test_pprint.py on patched version have succeeded OK (expected failures=1) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18682 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18682] [PATCH] remove bogus codepath from pprint._safe_repr
Changes by Michal Vyskocil mvysko...@suse.cz: Added file: http://bugs.python.org/file31194/check.py ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18682 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15301] os.chown: OverflowError: Python int too large to convert to C long
Georg Brandl added the comment: Looks like an unnecessary change for the maintenance releases then. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15301 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15301] os.chown: OverflowError: Python int too large to convert to C long
Larry Hastings added the comment: Okay then, closing. -- resolution: - fixed stage: patch review - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15301 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8713] multiprocessing needs option to eschew fork() under Linux
Richard Oudkerk added the comment: Richard, can you say what failed on the OS X 10.4 (Tiger) buildbot? There seems to be a problem which depends on the order in which you run the test, and it happens on Linux also. For example if I do ./python -m test -v \ test_multiprocessing_fork \ test_multiprocessing_forkserver Then I get lots of failures when forkserver runs. I have tracked down the changeset which caused the problem, but I have not had time to look in to it. The only vaguely suspicious message when running with -v was: [...] [semaphore_tracker] '/mp18203-0': [Errno 22] Invalid argument [semaphore_tracker] '/mp18203-1': successfully unlinked [...] That is expected and it shows the semaphore tracker is working as expected. Maybe I should print a note to stderr to expect this. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8713 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18677] Enhanced context managers with ContextManagerExit and None
Kristján Valur Jónsson added the comment: I've modified the patch. The problem that nested_delayed was trying to solve are hybrid context managers, ones that allocate resources during __init__ and release them at exit. A proper context manager should allocate resources during __enter__, and thus a number of them can be created upfront with impunity. Added contextlib.proper to turn a hybrid context manager into a proper one by instantiating the hybrid in a delayed fashion. added contextlib.opened() as a special case that does open() properly. With this change, and the ability to nest error handling of exceptions stemming from __enter__(), nested now works as intended. -- Added file: http://bugs.python.org/file31195/contextmanagerexit.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18677 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18677] Enhanced context managers with ContextManagerExit and None
Kristján Valur Jónsson added the comment: Thanks, Eric. I read that bit and I can't say that I disagree. And I'm not necessarily advocating that skipping the body become a standard feature of context managers. But it is a necessary functionality if you want to be able to dynamically nest one or more context managers, something I think Python should be able to do, for completeness, if not only for aesthetic beauty. Having said that, optionally skipping the body is a far cry from the more esoteric constructs achievable with pep 340. And python _already_ silently skips the body of managed code, if you nest two managers: @contextmanager errordude: 1 // 0 yield @contextmanager handler: try: yield except ZeroDivisionError: pass with handler, errordude: do_stuff() These context managers will skip the execution of f. It will be Python's internal decision to do so, of course. But the with statement already has the potential to have the body silently skipped. What I'm adding here, the ContextManagerExit, is the ability for the context manager itself to make the decision, so that the two context managers above can be coalesced into one: with nested(handler, errordude): do_stuff() The fact that do_stuff can be silently skipped in the first case, where we explicitly have two nested calls, invalidates IMHO the argument that context managers should not affect control flow. why shouldn't it also be skippable in the case of a single context manager? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18677 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18677] Enhanced context managers with ContextManagerExit and None
Kristján Valur Jónsson added the comment: Using my latest patch, the ExitStack inline example can be rewritten: with ExitStack() as stack: files = [stack.enter_context(open(fname)) for fname in filenames] # All opened files will automatically be closed at the end of # the with statement, even if attempts to open files later # in the list raise an exception becomes: with nested(opened(fname) for fname in filenames) as files: do_stuff_with_files(files) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18677 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18683] Core dumps on CentOS
New submission from Marc Schlaich: I'm running unittests on a CentOS 6.4 Virtual Box slave via Jenkins on a Windows host. Randomly I get core dumps for no obvious reason. I don't use any C extension in my code and don't use ctypes. The (proprietary) software is plain Python with a multi-threaded architecture. There might be a threading race condition in the code but according to http://stackoverflow.com/a/13654489/851737 this shouldn't result in a segfault. So it might be a bug in Python. I appended one log (I have various others if you wish to see them) with faulthandler enabled by https://pypi.python.org/pypi/nose-faulthandler. -- files: crash.log messages: 194660 nosy: schlamar priority: normal severity: normal status: open title: Core dumps on CentOS type: crash versions: Python 2.6 Added file: http://bugs.python.org/file31196/crash.log ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18683 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18684] Pointers point out of array bound in _sre.c
New submission from Serhiy Storchaka: In _sre.c pointers can point out of boundaries of array. This is an undefined behavior and is one of causes of a bug in issue17998 (end-ptr can be negative). The proposed patch change code to check if pointers will point out of boundaries before their changing. -- components: Regular Expressions files: sre_ptr_out_of_bounds.patch keywords: patch messages: 194661 nosy: ezio.melotti, mrabarnett, serhiy.storchaka priority: normal severity: normal stage: patch review status: open title: Pointers point out of array bound in _sre.c type: behavior versions: Python 2.7, Python 3.3, Python 3.4 Added file: http://bugs.python.org/file31197/sre_ptr_out_of_bounds.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18684 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18683] Core dumps on CentOS
R. David Murray added the comment: Can you reproduce this using 2.7? 2.6 only gets security fixes. -- nosy: +r.david.murray ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18683 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18416] Move to absolute file paths for module.__file__
Brett Cannon added the comment: So this is bringing up a sticky situation that I ran across when initially implementing all of this: what should sys.path_importer_cache use as a key? '' would be what happens with Madison's option 3, and with option 1 it would be os.getcwd(). Now if you iterate through sys.path you won't find what '' connects to. Then again, it won't be accurate if you change the directory either. So the question becomes should sys.path_importer_cache reflect exactly what is in sys.path or what should be cached for a finder based on what import should do (i.e. the full path and change based on the cwd)? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18416 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18273] Simplify calling and discovery of json test package
Roundup Robot added the comment: New changeset 95cf8640b271 by Ezio Melotti in branch '3.3': #18273: move the tests in Lib/test/json_tests to Lib/test/test_json and make them discoverable by unittest. Patch by Zachary Ware. http://hg.python.org/cpython/rev/95cf8640b271 New changeset f7ed301e7199 by Ezio Melotti in branch 'default': #18273: merge with 3.3. http://hg.python.org/cpython/rev/f7ed301e7199 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18273 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18273] Simplify calling and discovery of json test package
Ezio Melotti added the comment: Fixed, thanks for the patch! (Thanks Ned too!) -- assignee: - ezio.melotti resolution: - fixed stage: patch review - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18273 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
