Piet van Oostrum writes:
> doganad...@gmail.com writes:
>
>> I dont know much about scala actually. I have just have tried to give
>> 0.0001 and it returned a presentation with an 'e' .whereas python takes
>> 0.0001 and gives 0.0001 . it made me think python is better in
doganad...@gmail.com writes:
> I dont know much about scala actually. I have just have tried to give
> 0.0001 and it returned a presentation with an 'e' .whereas python takes
> 0.0001 and gives 0.0001 . it made me think python is better in that
> specific subject.
>
> However, python though
doganad...@gmail.com writes:
>
> In the meanwhile I have checked Scala , and it's more limited then Python.
> As an example:
> 0.0001
> 1.0E-4: Double
>
Why do you think this means Scala is more limited than Python?
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Martin Schöön writes:
> Den 2019-10-15 skrev Piet van Oostrum :
>>
>> What does this report? Compare if there is a difference between home and
>> work.
>>
>> from jupyter_core.paths import jupyter_path
>> print(jupyter_path('notebook','templates'))
&
than making hasty subdivisions.
In this context that means attributes (that can be None) rather than subclasses.
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n IDE that is called IDLE. It is simpler than Pycharm, but it can
do the job. So you can try that. If that also gives an error you could try to
reinstall Python.
If you are familiar with the command line, then that is also a possibility.
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Martin Schöön writes:
> Den 2019-10-13 skrev Piet van Oostrum :
>> Martin Schöön writes:
>>
>>> Is there a way to do "Download as PDF" and get A4 pages instead
>>> of Letter? Yes, I know I can do "Download as LaTeX" and edit the
>>
&g
line if you don't want the
LaTeX exporter to generate A4.
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actmethods__
Traceback (most recent call last):
File "", line 1, in
AttributeError: __abstractmethods__
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te a PDF file and send that to the
printer, possibly with the use of LaTeX.
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about (5,7), (5,8) and (6,8)?
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is some working code:
def PReader(csvfile):
import re
for line in csvfile:
line = re.sub(r'\(.*?\)', '"\g<0>"', line)
yield line
import csv
with open('testcsv.csv') as csvfile:
reader = csv.reader(PReader(csvfile), quotechar='"')
for row in read
>
I added the b because the default in the definition of read_csv is b'.', but
you are right, it works with just ','.
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e extracting the numeric fields to the
> array.
>
> Please, any comments or tip?
data = pd.read_csv ('table.csv', sep = ',', skiprows = 1, decimal=b',',
skipinitialspace=True)
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complete error message with your question.
3) Your with body is not indented:
with fits.open(fits_filename) as data:
df=pd.DataFrame(data[1].data)
df.columns=[c.lower() for c in df.columns]
print("Columns.")
print(df.columns.values)
But how should WE know how many li
facility. When a compound statement is entered interactively, it must be
followed by a blank line to indicate completion (since the parser cannot guess
when you have typed the last line). Note that each line within a basic block
must be indented by the same amount.
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gt; |IndexError: no such group
> |>>> re.search( pattern2, '1234' ).group( 1 )
> |>>>
>
The second pattern has parentheses, hence a group. The first doesn't.
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df1['New Team'].str.lower().str.strip()
works on whole columns, not only on an individual row.
xls = pd.ExcelFile("Melbourne.xlsx")
df = xls.parse('Sheet1', skiprows= 4)
df1 = df[['UID','Name','New Leader','Current Team', 'New Team']].copy()
df1['Difference'] = df1['Current Team'].st
101, 'low'))
>
> Outcome:
>
> 122.21
> 110.09
>
> Thanks!
You could use a dictionary to connect the words to the values.
As this is homework you have to do it yourself. Learn about dictionaries.
Otherwise just use 'if'.
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> ---> 28 my_data_3 = int(my_data_2)
> 29
> 30 my_data_4 = my_data_3.astype(np.float)
> TypeError: only length-1 arrays can be converted to Python scalars
> #
>>> my_data_2 = numpy.array(['0a', '2f', '38', 'ff'])
>&
the TABs will disappear. As the
format is a strange mixture of the two, you can use either one. But if it would
be read with a real CSV-reader, that obeys the quote convention, than using ','
as seperator will not work. Only TAB will work.
But in both cases you would have to do some pre- or post-processin
Piet van Oostrum writes:
> That would select ROWS 0,1,5,6,7, not columns.
> To select columns 0,1,5,6,7, use two-dimensional indexes
>
> df1 = df.iloc[:, [0,1,5,6,7]]
>
> : selects all rows.
And that also solves your original problem.
This statement:
df1['Difference'] = df1
all columns 13 when I requested 5.
> UID Name FTE Agent ID Current Leader New Leader Current Team New
> Team Current Site New Site Unnamed: 10 Unnamed: 11 Unnamed: 12
>
> How do I misunderstand iloc?
>
That would select ROWS 0,1,5,6,7, not columns.
To select columns 0,1,5,6,7, u
I couldn’d find the IDLE shell
> with them.
Well, on MacOS 10.13.6 (High Sierra) tensorflow 1.14.0 does install on Python
3.7.4, and it also runs. It does give some warnings about deprecations, however.
There is also a version 2.0RC which installs and runs without warnings.
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...: print('True')
...: else:
...: print('False')
True
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t Team' is spelled differently in the assignment
than in the construction of df1? For example a difference in spaces, like a
triling space or a breaking vs. non-breaking space? Please check that both are
exactly the same.
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o guarantee. It depends on
garbage collection.
In your case the file will not be closed as long as there is still a reference
to it (as in f). When f disappears and all copies of it as well, the file COULD
be closed similarly.
On the other hand, the with statement guarantees that the file will b
in the [index]'
>
> if I test df1 before trying to create the new column it works just fine.
>
> Sayth
What does df1.info() produce?
Which versions of numpy, scipy and pandas are you using?
It would be helpful if you could make a copy of the original .xlsx file
available.
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Piet van Oostrum writes:
> So the correct way to do this is to make df1 a copy rather than a view.
>
> df1 = df.loc[:, ('UID','Name','New Leader','Current Team', 'New Team')]
Or maybe even make an explicit copy:
df1 = df[['UID','Name','New Leader','Current Team', 'New Team']].copy()
an empty string instead of white space. This was
wrong in the stackoverflow post.
To replace whitespace it should be str.replace('\\s+',"", regex=True). But
simpler is to use str.strip():
df1['Difference'] = df1['Current Team'].str.lower().str.strip() == df1['New
Team'].str.lower
y is basically part of an expression. But starred expressions are not
allowed in expressions, except within explicit parentheses.
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got.
So to get this working you must make sure 'classes' is inside a directory that
is in sys.path, for example by adding:
sys.path.insert(0, '..')
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t(int)
The value of int is the class int, which is the class of 5, so type(5) is also
that same class int.
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randing'})
> price = container.find('div', attrs={'class':'item-action'})
> records.append((brand, price))
>
When I put this in a python file, and run it under python3.7, it works.
It seems you were running this line by line interactively, tight?
Could it be that you accidenta
\xce\xa4\xcf\x83\xce\xb9\xce\xac\xce\xbc\xce\xb7\xcf\x82'
>>> b = bytes(ord(c) for c in x)
>>> b.decode('utf-8')
'Άκης Τσιάμης'
>>>
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an
Even simpler:
>>> help(len)
help(len)
Help on built-in function len in module builtins:
len(obj, /)
Return the number of items in a container.
both in python 3.6 and 3.7.
This is weird.
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; f( x; y )
>
> (the actual call still would use a comma there).
>
What are you talking about? What documentation? It seems to me you are talking
about a completely different programming language, not python.
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') as csvfile:
reader = csv.reader(csvfile, delimiter='\t')
for row in reader:
for i in range(2, 5):
row[i] = float(row[i])
print(row)
You could convert the first two columns to datetime format if you wish.
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`
> After migrating from python 3.4.1 to python 3.6.6
> while Executing my project, I'm facing this issue and not able to
> resolve it. Can i get any solution for this issue?
Could it be that your PYTHONPATH environment variable is set to a directory in
Py
'll try that out.
Or I could first try to switch to Python 3, as Chris suggested, to see if that
makes the problem disappear.
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e
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py",
line 121, in _eintr_retry_call
return func(*args)
OSError: [Errno 22] Invalid argument
TASK is a string with the name of the shell script.
Can anybody shed some light on this?
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t "%s: %s" % (type(e).__name__, ', '.join(e.args))
>>> literal("'x':1")
{'x': 1}
>>> literal("x:1")
ValueError: malformed string
But in non-interactive use you probably want to propagate the exception.
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nt 127? The reason turns out to be paper punch tape.
> By backstepping and punching a DEL over the previous ASCII character you
> can "rub out" the character.
>
Sure, I have done that many times. Years ago.
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Ho Yeung Lee <jobmatt...@gmail.com> writes:
> which function should be used for this problem?
>
I think it is a kind if clustering, or a connectivity problem. There are
special algorithms for that, not just a simple function. Maybe scikit-learn has
a suitable algorithm for it.
ts into a
one-dimensiqonal list in such a way thet points that are close together
in the two-dimensional sense will also be close together in the
one-dimensional list. But that is impossible.
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another location as parameter.
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,5),(3,6),(4,6)]
>
> for key, group in groupby(items, key=PairKey(isneighborlocation)):
> print key, list(group)
>
> $ python sequential_group_class.py
> False [(1, 1)]
> True [(2, 3), (2, 4)]
> False [(3, 5), (3, 6), (4, 6)]
That only works if
(a) The elements in the list
5.0'}
> raw_html = requests.get(url, headers=headers)
>
> raw_data = raw_html.text
> soup_data = BeautifulSoup(raw_data, "lxml")
>
> td = soup_data.findAll('tr')[1:]
>
> country = []
>
> for data in td:
> col = data.find_all('td')
> co
Vincent Vande Vyvre <vincent.vande.vy...@telenet.be> writes:
> final = [(x, y+1) for x, y in zip(e, e)]
final = [(x, x+1) for x in e]
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be nice if python had a real 'let'
construction. Or for example:
[(tmp, tmp + 1) for x in data with tmp = expensive_calculation(x)]
Alas!
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ement, like
sys.stdout.flush()
Then you get them in order.
$ python3 subprc.py
a
b
c
d
Of course you won't be able to tell from which stream each line comes.
The streams are byte streams, not message streams. You would have to put
extra information, e.g. a prefix, in your print statements.
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not wrong, but it can be simplified to just:
if errors:
This is quite usual in Python, but some people prefer the more elaborate form,
or something like:
if len(errors) == 0:
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ormation it is difficult to say. What command did you use and
what was the result?
[Maybe you tried to include images in your post/mail but they did not come
through. Just copy/paste the text.]
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__main__ import code)
And then you'll see that t1 is slightly slower than t2.
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in :-)
There is a use case for a singleton class: when creating the singleton
object takes considerable resources and you don't need it always in your
program.
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Vinay Sajip vinay_sa...@yahoo.co.uk writes:
A new version of the Python module which wraps GnuPG has been
released.
There seem to be 2 gnupg modules for Python. The other one has version number
1.2.5. Very confusing!
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. Stop it. Please.
If you want to try to convince someone, convince me. Write to me
offline: n...@nedbatchelder.com
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I seriously think jmf has a mental disorder. So these reactions won't do
anything useful. Just ignore.
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yourself, you have a
serious lack of knowledge about Python, or maybe about programming, and it is
time to learn that first.
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wxjmfa...@gmail.com writes:
In fact, Python just becomes the last tool I (would)
recommend, especially for non-ascii users.
jmf
In fact, Python 3 is one of the best programming tools for non-ASCII users.
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for a way to avoid that. Functional programming languages
have a way to do this with the 'let' or 'where' construction which is
missing in Python.
Thanks everybody for your thoughts on this.
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because it makes it more clear
that a new list is constructed from an existing list, something that is
not as immediately clear with the append construction.
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Rustom Mody rustompm...@gmail.com writes:
On Saturday, January 18, 2014 4:49:55 AM UTC+5:30, Piet van Oostrum wrote:
[...]
Python misses a 'where' or 'let'-like construction as in Haskell.
+1
Yes Ive often been bitten by the lack of a 'comprehension-let'
If it used only in a comprehension
Alain Ketterlin al...@dpt-info.u-strasbg.fr writes:
Piet van Oostrum p...@vanoostrum.org writes:
[...]
Python misses a 'where' or 'let'-like construction as in Haskell.
let x = v in e really is (lambda x:e)(v)
You are right, but it is a lot less readable IMHO.
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, _, _, _, wd, _, _ in [localtime(then)]]
Python misses a 'where' or 'let'-like construction as in Haskell.
Anybody has a more elegant solution?
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Travis Griggs travisgri...@gmail.com writes:
Personally, I wish they’d start python4, sure would take the heat out of
the 3 vs 2 debates. And maybe there’d be a program called twentyfour as
a result.
twelve would be sufficient, I would think.
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contains this instruction twice:
ifdef(/*pyx*/,cp)if current is None:
ifdef(/*pyx*/,cp)raise KeyError
Which when generating pyx_treap.pyx (with *pyx* defined) expands to the
syntactically incorrect
cpif current is None:
cpraise KeyError
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Ian Kelly ian.g.ke...@gmail.com writes:
I suggest defining x as a normal function and writing the assignment
as Foo.x = staticmethod(x) to keep x callable from the global
namespace. Or just del it after doing the monkey patch.
You can use Foo.x = staticmethod(lambda: 2)
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the doc and use
that:
from datetime import tzinfo, timedelta, datetime
ZERO = timedelta(0)
class UTC(tzinfo):
UTC
def utcoffset(self, dt):
return ZERO
def tzname(self, dt):
return UTC
def dst(self, dt):
return ZERO
utc = UTC()
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(for text: Unicode; for time zones: twelve simple,
static zones that never change)
Twelve or twenty-four? Or are you thinking we should all be an even
number of hours away from UTC, which would also work?
Even 24 doesn't take into account DST.
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Chris Angelico ros...@gmail.com writes:
On Fri, Jan 10, 2014 at 1:06 AM, Piet van Oostrum p...@vanoostrum.org wrote:
Chris Angelico ros...@gmail.com writes:
On Thu, Jan 9, 2014 at 2:34 PM, Ben Finney ben+pyt...@benfinney.id.au
wrote:
With time zones, as with text encodings
of these things.
Continuing to post these comments with no interest in learning is rude.
Other recent threads have contained details rebuttals of your views,
which you have ignored. This is rude. Please stop.
Please ignore jmf's repeated nonsense.
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get the user id from Django).
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()
thank you =)
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it did not work.
Any idea what is the problem?
Length(reply) == 0 means that the other side closed the socket without sending
anything back.
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.
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anyone have known that this was the problem? AFIAK you didn't even
tell about the VPS. And moreover this wasn't a Python problem, so off topic
here.
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, Robert
div class='instructors'Seppi, Kevinbr\n//div]
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Sibylle Koczian nulla.epist...@web.de writes:
Am 07.11.2013 14:14, schrieb Piet van Oostrum:
Nick the Gr33knikos.gr...@gmail.com writes:
I have decided to take your advice.
I wasn't able to fit those 'lists' of mine into MySQL's varchar()
datatype after converting them to long strings
for k in range (1,N):
step = ((-1)**(k+1))/(2*k-1)
print(step) ## debug output
result += step
return result
print(sequence_b(10)) # print the result of the function call
[I use print() because I use Python 3]
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.
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TO LONG STRINGS SO I CAN STORE SUCCESSFULLY LIST
PYTHON DATATYPE TO MYSQL SCALAR STRING.
EVERYHTIGN I TRIED FAILED.
Then why don't you use the simple solution: use a relational database to store
the data?
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Piet van Oostrum added the comment:
I think future versions of Python should add the relevant information about how
they are linked to Tcl/Tk in sysconfig. This would include the path of the
include files, the shared libraries and the tcl files. Or a framework location
on OS X if this is used
should also include the Tcl/Tk header files.
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instead of asking for
evidence you know you will never get.
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, even though there
is no chance for needs_processing to change inside the loop, which does not
look very efficient.
I bet in most cases you won't notice the time used to check the condition.
Beware of premature optimization!
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WWW: http
and then trying
both the back button and entering the URL in the address bar. So it has nothing
to do with referrer, I think.
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Piet van Oostrum p...@vanoostrum.org writes:
Νίκος Αλεξόπουλος nikos.gr...@gmail.com writes:
There is no set of cookie returned back when visitor comes from a referer.
Isn't this strange?
No matter if you visit a webpage as a direct hit or via a referer the
cookie on the visitor's browser
just confused or are you trollong?
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Neil Cerutti ne...@norwich.edu writes:
Context-sensitive grammars can be parse, too.
That's not English. Do you mean parsed?
But context-sentitive grammars cannot be specified by BNF.
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Piet van Oostrum p...@vanoostrum.org
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to compile it at all. That's the difference between
a calculator and a computer.
You think a language that is not Turing-complete cannot be compiled?
What nonsense is that. Please Mark, spare us your nonsense.
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and
functionality differ, Do you have experience with objective usage ?
http://docs.python.org/2/library/functools.html#partial-objects
What do you mean with objective usage?
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syntax. It doesn't say anything
about semantics. So how could this be used to produce executable C code
for a program? BNF is used to produce parsers. But a parser isn't
sufficient.
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Ned Deily n...@acm.org writes:
In article m2zjq6mugp@cochabamba.vanoostrum.org,
Piet van Oostrum p...@vanoostrum.org wrote:
I tried to install it from source, on Mac OS X 10.6.8, with Python
3.3.2, and Tck/Tk 8.5 installed as Frameworks, but I get an error during
compilation. It seems
-//ccXN6p4b.out
error: command 'gcc-4.2' failed with exit status 1
You have new mail in /var/mail/piet
bash-3.2$ hg ftp -su
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intermediate C
code would be an object-oriented program in C. IIRC, the C code was reasonably
clear, not really convoluted, so you would have been able to write it yourself.
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(20,40, 'bo')
plt.annotate('B', (20,40), xytext=(-10,10), textcoords='offset points')
Of course you should write a loop to calculate the x, y points, and use the
proper colors.
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version is Python 2.7.3.
Am I missing something ?
I would guess the difference to be caused by DNS. Maybe the DNS configuration
on the RPi is not optimal.
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.)
Perhaps Scheme has the same convention, but Scheme could be considered a
part of the Lisp clade.
Lisp and scheme use semicolon (;). It wouldn't have been that difficult
to look that up I think.
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van Oostrum p...@vanoostrum.org
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(similar to yacc, that I did not
know) and used it to generate a parser for Algol 68.
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