how to call back a method in python3?
I want to call back a function which is the method of a class . def callback(self.do,x): return(self.do(x)) That is what i want to write,when i input def callback(self.do,x): error message: File stdin, line 1 def callback(self.do,x): ^ SyntaxError: invalid syntax `do` is a method in my class ,how to write the code?-- https://mail.python.org/mailman/listinfo/python-list
NameError: name 'requests' is not defined ？
there is a simple file `mydown.py` saved in `D:\Python34\Lib\site-packages` there is only one line in mydown.py . import requests C:\Users\pengsird:\Python34\python Python 3.4.0 (v3.4.0:04f714765c13, Mar 16 2014, 19:25:23) [MSC v.1600 64 bit (AM D64)] on win32 Type help, copyright, credits or license for more information. import mydown dir(mydown) ['__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', 'requests'] url='http://quote.eastmoney.com/hk/0.html?StockCode=0' requests.get(url) Traceback (most recent call last): File stdin, line 1, in module NameError: name 'requests' is not defined why it run into NameError: name 'requests' is not defined?-- https://mail.python.org/mailman/listinfo/python-list
回复： problem on multi-threading
x=webdata(name) x.start() Traceback (most recent call last): File stdin, line 1, in module AttributeError: 'webdata' object has no attribute 'start' There is a relation with jobs.join() method in threading module,your answer is wrong. -- 原始邮件 -- 发件人: Sturla Molden;sturla.mol...@gmail.com; 发送时间: 2014年7月26日(星期六) 凌晨4:04 收件人: python-listpython-list@python.org; 主题: Re: problem on multi-threading 水静流深 1248283...@qq.com wrote: name=['60', '01', '600319', '600531','600661', '600983', '600202', '600149'] x=webdata(name) x.run() never quit from the thread ,why? Call .start() instead of .run() -- https://mail.python.org/mailman/listinfo/python-list-- https://mail.python.org/mailman/listinfo/python-list
problem on multi-threading
The right program is as following,everything is ok. import requests import threading import queue class webdata(object): def __init__(self,name): self.jobs=queue.Queue() for x in name: url='http://stockhtm.finance.qq.com/sstock/ggcx/%s.shtml' %x self.jobs.put(url) def download(self): while not self.jobs.empty(): try: url = self.jobs.get() print(requests.get(url).status_code,url) print(threading.currentThread()) self.jobs.task_done() except: print(wrong,url) self.jobs.task_done() def run(self): for i in range(3): threading.Thread(target=self.download).start() self.jobs.join() print(i am over) name=['60', '01', '600319', '600531','600661', '600983', '600202', '600149'] x=webdata(name) x.run() question1: when i delete the line of `self.jobs.join()` ,the program will never finished ,why? import requests import threading import queue class webdata(object): def __init__(self,name): self.jobs=queue.Queue() for x in name: url='http://stockhtm.finance.qq.com/sstock/ggcx/%s.shtml' %x self.jobs.put(url) def download(self): while not self.jobs.empty(): try: url = self.jobs.get() print(requests.get(url).status_code,url) print(threading.currentThread()) self.jobs.task_done() except: print(wrong,url) self.jobs.task_done() def run(self): for i in range(3): threading.Thread(target=self.download).start() self.jobs.join() print(i am over) name=['60', '01', '600319', '600531','600661', '600983', '600202', '600149'] x=webdata(name) x.run() never quit from the thread ,why? question2: I can get every son-thread thread number with `print(threading.currentThread()) `,how can i get the main thread number in the program? 08221DA3@7B7BB14B.140BD253.PNG Description: Binary data -- https://mail.python.org/mailman/listinfo/python-list
how to download special range content with requests in python?
url='http://debian.cites.illinois.edu/pub/debian-cd/7.6.0/amd64/iso-cd/debian-7.6.0-amd64-CD-1.iso' import requests r = requests.get(url).read(0,1000) why i can not download special range(from 0 to 1) content with requests in python?-- https://mail.python.org/mailman/listinfo/python-list
回复： how to download special range content with requests in python?
i want to write a multiple threads download program to practice my MT knowledge, 1)cut the big iso file into 20 parts 2)start 20 process with threading and queue module to download 3)combine the 20 parts into one iso file. if i have cut it into 20 parts ,how can i download the first part of it ? it is target to practice the threading and queue module . -- 原始邮件 -- 发件人: Chris Angelico;ros...@gmail.com; 发送时间: 2014年7月23日(星期三) 晚上11:58 收件人: 抄送: python-listpython-list@python.org; 主题: Re: how to download special range content with requests in python? On Wed, Jul 23, 2014 at 7:44 PM, 水静流深 1248283...@qq.com wrote: url='http://debian.cites.illinois.edu/pub/debian-cd/7.6.0/amd64/iso-cd/debian-7.6.0-amd64-CD-1.iso' import requests r = requests.get(url).read(0,1000) why i can not download special range(from 0 to 1) content with requests in python? Looking into my crystal ball, I think you're trying to have this send the Range header. If that's the case, then there's no way you can do that with the read() method; you have to incorporate that into the original request, and then just read everything the server sends you. If that's not what you're talking about, please explain further, preferably demonstrating what you want to happen at the HTTP level. ChrisA -- https://mail.python.org/mailman/listinfo/python-list-- https://mail.python.org/mailman/listinfo/python-list
Not enough memory.
import os help(os.path) Not enough memory. Why i get it?Not enough memory , not help info?,not-- https://mail.python.org/mailman/listinfo/python-list
how can i get the source code of goagent.exe?
There is a open source project-goagent,when you download it and extract it, code.google.com/p/goagent/downloads in the local diretory, a file named goagent.exe in it. how can i get the source code of goagent.exe ,not the binary form ,the text form.-- https://mail.python.org/mailman/listinfo/python-list
why i can't install ez_setup
I have downloaoded ez_setup.py ,when i install it ,the wrong message:
python d:\ez_setup.py
Downloading https://pypi.python.org/packages/source/s/setuptools/setuptools-5.2.
zip
Exception calling DownloadFile with 2 argument(s): Unable to connect to th
e remote server
At line:1 char:152
+ [System.Net.WebRequest]::DefaultWebProxy.Credentials = [System.Net.Credential
Cache]::DefaultCredentials; (new-object System.Net.WebClient).DownloadFile
('https://pypi.python.org/packages/source/s/setuptools/setuptools-5.2.zip', 'C
:\\Users\\pengsir\\setuptools-5.2.zip')
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : DotNetMethodException
Traceback (most recent call last):
File d:\ez_setup.py, line 332, in module
sys.exit(main())
File d:\ez_setup.py, line 327, in main
downloader_factory=options.downloader_factory,
File d:\ez_setup.py, line 287, in download_setuptools
downloader(url, saveto)
File d:\ez_setup.py, line 192, in download_file_powershell
_clean_check(cmd, target)
File d:\ez_setup.py, line 169, in _clean_check
subprocess.check_call(cmd)
File d:\Python27\lib\subprocess.py, line 540, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['powershell', '-Command', [System.Net.
WebRequest]::DefaultWebProxy.Credentials = [System.Net.CredentialCache]::Default
Credentials; (new-object System.Net.WebClient).DownloadFile('https://pypi.python
.org/packages/source/s/setuptools/setuptools-5.2.zip', 'C:Userspengsir\\
\\setuptools-5.2.zip')]' returned non-zero exit status 1
what is wrong with it?
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回复： why i can't install ez_setup
I have download the setuptools-5.2.zip with wget
1.download setuptools-5.2.zip
C:\Users\pengsird:\wget -c
https://pypi.python.org/packages/source/s/setuptools
/setuptools-5.2.zip
--2014-06-29 06:42:30-- https://pypi.python.org/packages/source/s/setuptools/se
tuptools-5.2.zip
Resolving pypi.python.org... 103.245.222.175
Connecting to pypi.python.org|103.245.222.175|:443... connected.
ERROR: cannot verify pypi.python.org's certificate, issued by `/C=US/O=DigiCert
Inc/OU=www.digicert.com/CN=DigiCert High Assurance CA-3':
Unable to locally verify the issuer's authority.
ERROR: certificate common name `*.c.ssl.fastly.net' doesn't match requested host
name `pypi.python.org'.
To connect to pypi.python.org insecurely, use `--no-check-certificate'.
Unable to establish SSL connection.
C:\Users\pengsird:\wget -c https://pypi.python.org/packages/source/s/setuptools
/setuptools-5.2.zip --no-check-certificate
--2014-06-29 06:43:02-- https://pypi.python.org/packages/source/s/setuptools/se
tuptools-5.2.zip
Resolving pypi.python.org... 103.245.222.175
Connecting to pypi.python.org|103.245.222.175|:443... connected.
WARNING: cannot verify pypi.python.org's certificate, issued by `/C=US/O=DigiCer
t Inc/OU=www.digicert.com/CN=DigiCert High Assurance CA-3':
Unable to locally verify the issuer's authority.
WARNING: certificate common name `*.c.ssl.fastly.net' doesn't match requested ho
st name `pypi.python.org'.
HTTP request sent, awaiting response... 200 OK
Length: 856803 (837K) [application/zip]
Saving to: `setuptools-5.2.zip'
100%[==] 856,803 208K/s in 4.0s
2.install setuptools
extract all files in d: disk.
C:\Users\pengsirpython d:\setuptools-5.2\setup.py
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: setup.py --help [cmd1 cmd2 ...]
or: setup.py --help-commands
or: setup.py cmd --help
error: no commands supplied
C:\Users\pengsirpython d:\setuptools-5.2\easy_install.py
error: No urls, filenames, or requirements specified (see --help)
How can i install it now?
-- 原始邮件 --
发件人: Mark Lawrence;breamore...@yahoo.co.uk;
发送时间: 2014年6月29日(星期天) 凌晨1:24
收件人: python-listpython-list@python.org;
主题: Re: why i can't install ez_setup
On 28/06/2014 16:36, Chris “Kwpolska” Warrick wrote:
On Sat, Jun 28, 2014 at 1:49 PM, 水静流深 1248283...@qq.com wrote:
I have downloaoded ez_setup.py ,when i install it ,the wrong message:
python d:\ez_setup.py
Downloading
https://pypi.python.org/packages/source/s/setuptools/setuptools-5.2.
zip
Exception calling DownloadFile with 2 argument(s): Unable to connect to
th
e remote server
At line:1 char:152
+ [System.Net.WebRequest]::DefaultWebProxy.Credentials =
[System.Net.Credential
Cache]::DefaultCredentials; (new-object System.Net.WebClient).DownloadFile
('https://pypi.python.org/packages/source/s/setuptools/setuptools-5.2.zip',
'C
:\\Users\\pengsir\\setuptools-5.2.zip')
+ CategoryInfo : NotSpecified: (:) [],
MethodInvocationException
+ FullyQualifiedErrorId : DotNetMethodException
Traceback (most recent call last):
File d:\ez_setup.py, line 332, in module
sys.exit(main())
File d:\ez_setup.py, line 327, in main
downloader_factory=options.downloader_factory,
File d:\ez_setup.py, line 287, in download_setuptools
downloader(url, saveto)
File d:\ez_setup.py, line 192, in download_file_powershell
_clean_check(cmd, target)
File d:\ez_setup.py, line 169, in _clean_check
subprocess.check_call(cmd)
File d:\Python27\lib\subprocess.py, line 540, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['powershell', '-Command',
[System.Net.
WebRequest]::DefaultWebProxy.Credentials =
[System.Net.CredentialCache]::Default
Credentials; (new-object
System.Net.WebClient).DownloadFile('https://pypi.python
.org/packages/source/s/setuptools/setuptools-5.2.zip',
'C:Userspengsir\\
\\setuptools-5.2.zip')]' returned non-zero exit status 1
what is wrong with it?
Either (a) pypi, or (b) you were offline when trying to install.
Also, you generally want to use get-pip.py instead, it will also get
you pip in addition to setuptools:
https://bootstrap.pypa.io/get-pip.py
Or get Python 3.4 which can get pip for you if you so desire.
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
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回复： write 中文 into c:\t1
file.write(s.decode('gbk').encode('utf-8'))
i open the file c:\t1, to get 中文 in it
not 涓枃
-- 原始邮件 --
发件人: MRABpyt...@mrabarnett.plus.com;
发送时间: 2012年1月27日(星期五) 上午10:53
收件人: python-listpython-list@python.org;
主题: Re: write 中文 into c:\t1
On 27/01/2012 02:46, contro opinion wrote:
| s='\xd6\xd0\xce\xc4'
print s
中文
s1=s.decode('gbk').encode('utf-8')
print s1
涓枃
file=open('c:\\t1','w')
file.write(s1)
file.close()
|
when i open c:\t1,i get 中文 in it,
how can i write 涓枃 into c:\t1??
file.write(print s1)
File stdin, line 1
file.write(print s1)
^
SyntaxError: invalid syntax
file.write(s.decode('gbk').encode('utf-8'))
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how to install lxml in window xp?
in my xp ,python26,easy_install installed. i want to install lxml in window xp 1.c:\python26\scripts\easy_install lxml what i get is: Reading http://codespeak.net/lxml Best match: lxml 2.3.3 Downloading http://lxml.de/files/lxml-2.3.3.tgz Processing lxml-2.3.3.tgz Running lxml-2.3.3\setup.py -q bdist_egg --dist-dir c:\windows\temp\easy_install -58e4ap\lxml-2.3.3\egg-dist-tmp-hyg1bg Building lxml version 2.3.3. Building with Cython 0.15.1. ERROR: 'xslt-config' is not recognized as an internal or external command, operable program or batch file. ** make sure the development packages of libxml2 and libxslt are installed ** Using build configuration of libxslt warning: no files found matching 'lxml.etree.c' under directory 'src\lxml' warning: no files found matching 'lxml.objectify.c' under directory 'src\lxml' warning: no files found matching 'lxml.etree.h' under directory 'src\lxml' warning: no files found matching 'lxml.etree_api.h' under directory 'src\lxml' warning: no files found matching 'etree_defs.h' under directory 'src\lxml' Reading http://codespeak.net/lxml Best match: lxml 2.3.3 Downloading http://lxml.de/files/lxml-2.3.3.tgz Processing lxml-2.3.3.tgz Running lxml-2.3.3\setup.py -q bdist_egg --dist-dir c:\windows\temp\easy_install -58e4ap\lxml-2.3.3\egg-dist-tmp-hyg1bg Building lxml version 2.3.3. Building with Cython 0.15.1. ERROR: 'xslt-config' is not recognized as an internal or external command, operable program or batch file. ** make sure the development packages of libxml2 and libxslt are installed ** Using build configuration of libxslt warning: no files found matching 'lxml.etree.c' under directory 'src\lxml' warning: no files found matching 'lxml.objectify.c' under directory 'src\lxml' warning: no files found matching 'lxml.etree.h' under directory 'src\lxml' warning: no files found matching 'lxml.etree_api.h' under directory 'src\lxml' warning: no files found matching 'etree_defs.h' under directory 'src\lxml' warning: no files found matching 'pubkey.asc' under directory 'doc' warning: no files found matching 'tagpython*.png' under directory 'doc' warning: no files found matching 'Makefile' under directory 'doc' error: Setup script exited with error: None how can i install the lxml in my xp??-- http://mail.python.org/mailman/listinfo/python-list
problem to install Flask
~$ sudo easy_install Flask
Searching for Flask
Reading http://pypi.python.org/simple/Flask/
Reading http://github.com/mitsuhiko/flask/
Best match: Flask 0.8
Downloading
http://pypi.python.org/packages/source/F/Flask/Flask-0.8.tar.gz#md5=a5169306cfe49b3b369086f2a63816ab
Processing Flask-0.8.tar.gz
Running Flask-0.8/setup.py -q bdist_egg --dist-dir
/tmp/easy_install-tnoyjj/Flask-0.8/egg-dist-tmp-pq04_a
Traceback (most recent call last):
File /usr/local/bin/easy_install, line 9, in module
load_entry_point('distribute==0.6.24', 'console_scripts', 'easy_install')()
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 1883, in main
with_ei_usage(lambda:
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 1864, in with_ei_usage
return f()
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 1887, in lambda
distclass=DistributionWithoutHelpCommands, **kw
File /usr/local/lib/python3.2/distutils/core.py, line 148, in setup
dist.run_commands()
File /usr/local/lib/python3.2/distutils/dist.py, line 917, in run_commands
self.run_command(cmd)
File /usr/local/lib/python3.2/distutils/dist.py, line 936, in run_command
cmd_obj.run()
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 349, in run
self.easy_install(spec, not self.no_deps)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 589, in easy_install
return self.install_item(spec, dist.location, tmpdir, deps)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 619, in install_item
dists = self.install_eggs(spec, download, tmpdir)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 809, in install_eggs
return self.build_and_install(setup_script, setup_base)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 1086, in build_and_install
self.run_setup(setup_script, setup_base, args)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 1075, in run_setup
run_setup(setup_script, args)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/sandbox.py,
line 31, in run_setup
lambda: exec(compile(open(
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/sandbox.py,
line 73, in run
return func()
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/sandbox.py,
line 33, in lambda
).read(), setup.py, 'exec'),
File setup.py, line 62
print Audit requires PyFlakes installed in your system.
^
SyntaxError: invalid syntax
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回复： problem to install Flask
yes i run python3,how to install flask in python3?
-- 原始邮件 --
发件人: MRABpyt...@mrabarnett.plus.com;
发送时间: 2012年1月6日(星期五) 中午11:05
收件人: python-listpython-list@python.org;
主题: Re: problem to install Flask
On 06/01/2012 02:24, 水静流深 wrote:
~$ sudo easy_install Flask
Searching for Flask
Reading http://pypi.python.org/simple/Flask/
Reading http://github.com/mitsuhiko/flask/
Best match: Flask 0.8
Downloading
http://pypi.python.org/packages/source/F/Flask/Flask-0.8.tar.gz#md5=a5169306cfe49b3b369086f2a63816ab
Processing Flask-0.8.tar.gz
Running Flask-0.8/setup.py -q bdist_egg --dist-dir
/tmp/easy_install-tnoyjj/Flask-0.8/egg-dist-tmp-pq04_a
Traceback (most recent call last):
File /usr/local/bin/easy_install, line 9, in module
load_entry_point('distribute==0.6.24', 'console_scripts', 'easy_install')()
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 1883, in main
with_ei_usage(lambda:
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 1864, in with_ei_usage
return f()
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 1887, in lambda
distclass=DistributionWithoutHelpCommands, **kw
File /usr/local/lib/python3.2/distutils/core.py, line 148, in setup
dist.run_commands()
File /usr/local/lib/python3.2/distutils/dist.py, line 917, in run_commands
self.run_command(cmd)
File /usr/local/lib/python3.2/distutils/dist.py, line 936, in run_command
cmd_obj.run()
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 349, in run
self.easy_install(spec, not self.no_deps)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 589, in easy_install
return self.install_item(spec, dist.location, tmpdir, deps)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 619, in install_item
dists = self.install_eggs(spec, download, tmpdir)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 809, in install_eggs
return self.build_and_install(setup_script, setup_base)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 1086, in build_and_install
self.run_setup(setup_script, setup_base, args)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/command/easy_install.py,
line 1075, in run_setup
run_setup(setup_script, args)
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/sandbox.py,
line 31, in run_setup
lambda: exec(compile(open(
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/sandbox.py,
line 73, in run
return func()
File
/usr/local/lib/python3.2/site-packages/distribute-0.6.24-py3.2.egg/setuptools/sandbox.py,
line 33, in lambda
).read(), setup.py, 'exec'),
File setup.py, line 62
print Audit requires PyFlakes installed in your system.
^
SyntaxError: invalid syntax
what is the matter?
The syntax of this line:
print Audit requires PyFlakes installed in your system.
tells me that it's written for Python 2, but this:
/usr/local/lib/python3.2
tells me that you're using Python 3.
In Python 2, print is a statement; in Python 3 it's a function.
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python32 to write file
code 1 can run in python2.6
#coding:utf-8
import urllib
import lxml.html
down='http://frux.wikispaces.com/'
root=urllib.urlopen(down).read()
root=lxml.html.fromstring(root)
file=root.xpath('//a')
for i in file:
str1=i.text_content()
if str1.find('pdf') -1 :
str2='http://frux.wikispaces.com/file/view/'+str1
myfile=urllib.urlopen(str2).read()
book=open('/tmp/'+str1,'w')
book.write(myfile)
book.close()
i usr command : 2to3-3.2 ~/xml.py -w to get code2
#coding:utf-8
import urllib.request, urllib.parse, urllib.error
import lxml.html
down='http://frux.wikispaces.com/'
root=urllib.request.urlopen(down).read()
root=lxml.html.fromstring(root)
file=root.xpath('//a')
for i in file:
str1=i.text_content()
if str1.find('pdf') -1 :
str2='http://frux.wikispaces.com/file/view/'+str1
myfile=urllib.request.urlopen(str2).read()
book=open('c:\'+str1,'w') # i change it
book.write(myfile)
book.close()
when i run it in python32,the output is :
book=open('c:\'+str1,'w')
invalid syntax,what is wrong?--
http://mail.python.org/mailman/listinfo/python-list
回复： python32 to write file
i change my code into :
import urllib.request, urllib.parse, urllib.error
import lxml.html
down='http://frux.wikispaces.com/'
root=urllib.request.urlopen(down).read()
root=lxml.html.fromstring(root)
file=root.xpath('//a')
for i in file:
str1=i.text_content()
if str1.find('pdf') -1 :
str2='http://frux.wikispaces.com/file/view/'+str1
myfile=urllib.request.urlopen(str2).read()
book=open('c:/'+str1,'w')
book.write(myfile)
book.close()
the new problem is :
C:\Python32python c:\xml.py
Traceback (most recent call last):
File c:\xml.py, line 5, in module
root=lxml.html.fromstring(root)
File C:\Python32\lib\site-packages\lxml\html\__init__.py, line 630, in froms
tring
if start.startswith('html') or start.startswith('!doctype'):
TypeError: startswith first arg must be bytes or a tuple of bytes, not str
-- 原始邮件 --
发件人: Chris Rebertc...@rebertia.com;
发送时间: 2011年10月23日(星期天) 晚上9:48
收件人: 水静流深1248283...@qq.com;
抄送: python-listpython-list@python.org;
主题: Re: python32 to write file
2011/10/23 水静流深 1248283...@qq.com:
snip
book=open('c:\'+str1,'w') # i change it
snip when i run it in python32,the output is :
book=open('c:\'+str1,'w')
invalid syntax,what is wrong?
Your problem is not at all Python 3-specific.
Backslashes are used for escape sequences in string literals (e.g.
\n is newline, \t is tab). For example, the string c:\new\tally
contains both a newline and a tab, but not an N, nor a T, nor any
backslashes (a literal backslash is written using the escape sequence
\\; i.e. two backslashes).
Similarly, \' is an escape sequence for apostrophe, and thus does
not terminate the string literal, leading to a not entirely obvious
SyntaxError.
Use forward slashes (/) instead; Windows accepts them instead of
backslashes as directory separators in path strings, and they have no
such escaping issues.
Cheers,
Chris
--
Damn you, CP/M!
http://rebertia.com--
http://mail.python.org/mailman/listinfo/python-list
getroot() problem
C:\Documents and Settings\pengcd c:\python32 C:\Python32python Python 3.2.2 (default, Sep 4 2011, 09:51:08) [MSC v.1500 32 bit (Intel)] on win 32 Type help, copyright, credits or license for more information. import lxml.html sfile='http://finance.yahoo.com/q/op?s=A+Options' root=lxml.html.parse(sfile).getroot() there is no problem to parse : http://finance.yahoo.com/q/op?s=A+Options' why i can not parse http://frux.wikispaces.com/ ?? import lxml.html sfile='http://frux.wikispaces.com/' root=lxml.html.parse(sfile).getroot() Traceback (most recent call last): File stdin, line 1, in module File C:\Python32\lib\site-packages\lxml\html\__init__.py, line 692, in parse return etree.parse(filename_or_url, parser, base_url=base_url, **kw) File lxml.etree.pyx, line 2942, in lxml.etree.parse (src/lxml/lxml.etree.c:5 4187) File parser.pxi, line 1528, in lxml.etree._parseDocument (src/lxml/lxml.etre e.c:79485) File parser.pxi, line 1557, in lxml.etree._parseDocumentFromURL (src/lxml/lx ml.etree.c:79768) File parser.pxi, line 1457, in lxml.etree._parseDocFromFile (src/lxml/lxml.e tree.c:78843) File parser.pxi, line 997, in lxml.etree._BaseParser._parseDocFromFile (src/ lxml/lxml.etree.c:75698) File parser.pxi, line 564, in lxml.etree._ParserContext._handleParseResultDo c (src/lxml/lxml.etree.c:71739) File parser.pxi, line 645, in lxml.etree._handleParseResult (src/lxml/lxml.e tree.c:72614) File parser.pxi, line 583, in lxml.etree._raiseParseError (src/lxml/lxml.etr ee.c:71927) IOError: Error reading file 'b'http://frux.wikispaces.com/'': b'failed to load e xternal entity http://frux.wikispaces.com/;' -- http://mail.python.org/mailman/listinfo/python-list
install lxml
there are two python versions in my computer, python2.7 is the default,python3.2 is the second install. for python2.7 ~$python Python 2.7.1+ (r271:86832, Apr 11 2011, 18:05:24) [GCC 4.5.2] on linux2 Type help, copyright, credits or license for more information. import lxml for python3.2 ~$python3.2 Python 3.2.2 (default, Oct 24 2011, 10:33:35) [GCC 4.5.2] on linux2 Type help, copyright, credits or license for more information. import lxml Traceback (most recent call last): File stdin, line 1, in module ImportError: No module named lxml i want to install lxml in python3.2. how can i do?-- http://mail.python.org/mailman/listinfo/python-list
回复： getroot() problem
in my computer,there two os , 1.xp+python32 import lxml.html sfile='http://finance.yahoo.com/q/op?s=A+Options' root=lxml.html.parse(sfile).getroot() it is ok import lxml.html sfile='http://frux.wikispaces.com/' root=lxml.html.parse(sfile).getroot() there is problem Traceback (most recent call last): File stdin, line 1, in module File C:\Python32\lib\site-packages\lxml\html\__init__.py, line 692, in parse return etree.parse(filename_or_url, parser, base_url=base_url, **kw) File lxml.etree.pyx, line 2942, in lxml.etree.parse (src/lxml/lxml.etree.c:5 4187) File parser.pxi, line 1528, in lxml.etree._parseDocument (src/lxml/lxml.etre e.c:79485) File parser.pxi, line 1557, in lxml.etree._parseDocumentFromURL (src/lxml/lx ml.etree.c:79768) File parser.pxi, line 1457, in lxml.etree._parseDocFromFile (src/lxml/lxml.e tree.c:78843) File parser.pxi, line 997, in lxml.etree._BaseParser._parseDocFromFile (src/ lxml/lxml.etree.c:75698) File parser.pxi, line 564, in lxml.etree._ParserContext._handleParseResultDo c (src/lxml/lxml.etree.c:71739) File parser.pxi, line 645, in lxml.etree._handleParseResult (src/lxml/lxml.e tree.c:72614) File parser.pxi, line 583, in lxml.etree._raiseParseError (src/lxml/lxml.etr ee.c:71927) IOError: Error reading file 'b'http://frux.wikispaces.com/'': b'failed to load e xternal entity http://frux.wikispaces.com/;' 2. ubuntu11.04+python2.6 import lxml.html sfile='http://frux.wikispaces.com/' root=lxml.html.parse(sfile).getroot() it is ok it is so strange thing for me to understand -- 原始邮件 -- 发件人: Dave Angeld...@davea.name; 发送时间: 2011年10月24日(星期一) 上午9:22 收件人: 12482835361248283...@qq.com; 抄送: lxmll...@lxml.de; python-listpython-list@python.org; 主题: Re: getroot() problem On 10/23/2011 09:06 PM, 水静流深 wrote: C:\Documents and Settings\pengcd c:\python32 C:\Python32python Python 3.2.2 (default, Sep 4 2011, 09:51:08) [MSC v.1500 32 bit (Intel)] on win 32 Type help, copyright, credits or license for more information. import lxml.html sfile='http://finance.yahoo.com/q/op?s=A+Options' root=lxml.html.parse(sfile).getroot() there is no problem to parse : http://finance.yahoo.com/q/op?s=A+Options' why i can not parse http://frux.wikispaces.com/ ?? import lxml.html sfile='http://frux.wikispaces.com/' root=lxml.html.parse(sfile).getroot() Traceback (most recent call last): File stdin, line 1, inmodule File C:\Python32\lib\site-packages\lxml\html\__init__.py, line 692, in parse return etree.parse(filename_or_url, parser, base_url=base_url, **kw) File lxml.etree.pyx, line 2942, in lxml.etree.parse (src/lxml/lxml.etree.c:5 4187) File parser.pxi, line 1528, in lxml.etree._parseDocument (src/lxml/lxml.etre e.c:79485) File parser.pxi, line 1557, in lxml.etree._parseDocumentFromURL (src/lxml/lx ml.etree.c:79768) File parser.pxi, line 1457, in lxml.etree._parseDocFromFile (src/lxml/lxml.e tree.c:78843) File parser.pxi, line 997, in lxml.etree._BaseParser._parseDocFromFile (src/ lxml/lxml.etree.c:75698) File parser.pxi, line 564, in lxml.etree._ParserContext._handleParseResultDo c (src/lxml/lxml.etree.c:71739) File parser.pxi, line 645, in lxml.etree._handleParseResult (src/lxml/lxml.e tree.c:72614) File parser.pxi, line 583, in lxml.etree._raiseParseError (src/lxml/lxml.etr ee.c:71927) IOError: Error reading file 'b'http://frux.wikispaces.com/'': b'failed to load e xternal entity http://frux.wikispaces.com/;' Double-spacing makes your message much harder to read. I can only comment in a general way, in any case. most html is mal-formed, and not legal html. Although I don't have any experience with parsing it, I do with xml which has similar problems. The first thing I'd do is to separate the loading of the byte string from the website, from the parsing of those bytes. Further, I'd make a local copy of those bytes, so you can do testing repeatably. For example, you could run wget utility to copy the bytes locally and create a file. -- DaveA-- http://mail.python.org/mailman/listinfo/python-list
回复： install lxml
The latest version is lxml 2.3.1, released 2011-09-25, 1.download it 2.extract it ,put it in the /home/user/Python-3.2.2/libxml2-2.7.8 3.cd /home/user/Python-3.2.2/libxml2-2.7.8 4. ./configure 5.make 6.sudo make install when i finished ~$ python3.2 Python 3.2.2 (default, Oct 24 2011, 10:33:35) [GCC 4.5.2] on linux2 Type help, copyright, credits or license for more information. import lxml Traceback (most recent call last): File stdin, line 1, in module ImportError: No module named lxml there is still the problem!! -- 原始邮件 -- 发件人: Terry Reedytjre...@udel.edu; 发送时间: 2011年10月24日(星期一) 中午12:58 收件人: python-listpython-list@python.org; 抄送: lxmll...@lxml.de; 主题: Re: install lxml On 10/24/2011 12:02 AM, 水静流深 wrote: there are two python versions in my computer, python2.7 is the default,python3.2 is the second install. for python2.7 ~$python Python 2.7.1+ (r271:86832, Apr 11 2011, 18:05:24) [GCC 4.5.2] on linux2 Type help, copyright, credits or license for more information. import lxml for python3.2 ~$python3.2 Python 3.2.2 (default, Oct 24 2011, 10:33:35) [GCC 4.5.2] on linux2 Type help, copyright, credits or license for more information. import lxml Traceback (most recent call last): File stdin, line 1, in module ImportError: No module named lxml i want to install lxml in python3.2. how can i do? Put a 3.2 version of lxml in the 3.2 Lib/site-packages directory. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list-- http://mail.python.org/mailman/listinfo/python-list
