Re: Help with suds: HTTP Error 401
> ... HTTP Error 401 means "Unauthorized": the service you tried to use requires authentication and either it has not found authentication information or it was wrong. -- https://mail.python.org/mailman/listinfo/python-list
Re: rpath alike feature for python scripts
Olaf Hering writes: > On Mon, Jul 28, Albert-Jan Roskam wrote: >> does this help: https://nixos.org/patchelf.html. It is not specific to >> Python, though. > > No, this does not help because its not about patching the result. > The questions is how to obtain the value with should be patched into the > result. You wanted to know how to emulate the "rpath" feature with Python scripts. The use case for the "rpath" feature looks like: A binary depends on some shared objects stored at a non-standard place. The person linking the binary knows those places where the shared objects can likely be found. He uses the "rpath" linker option to provide this information. It is stored with the created binary and instructs the dynamic linker in what additional places it should look for shared objects. Python correspondences: binary ~ script dynamic linker ~ Python's import mechanism Python lacks the (static) linking phase. You must invent something: you may see it as part of script development or as part of the installation or design it as creating some wrapper which extends the standard configuration for Python's import mechanism and then call the script itself. The primary ways to interact with Python's import mechanism are "sys.path" and the envvar "PYTHONPATH" (which corresponds to the envvar "LD_LIBRARY_PATH"). > Looks like I have to dissect setup.py and mimic its behaviour in the > Makefile. "setup.py" does nothing with Python's "sys.path". It looks at "sys.prefix" and "sys.execprefix" to learn where to install modules/packages and binary scripts. -- https://mail.python.org/mailman/listinfo/python-list
Re: Load a CSV with different row lengths
Greetings,
> I should've mentioned that I want to import my csv as a data frame or numpy
> array or as a table.
If you know the max length of a row, then you can do something like:
def gen_rows(stream, max_length):
for row in csv.reader(stream):
yield row + ([None] * (max_length - len(line))
max_length = 10
with open('data.csv') as fo:
df = pd.DataFrame.from_records(gen_rows(fo, max_length))
HTH,
Miki
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Re: Help with suds: HTTP Error 401
Use a SUDS fork that works, I tried https://github.com/unomena/suds See here: http://stackoverflow.com/questions/18455945/python-suds-runtimeerror-maximum-recursion-depth-exceeded-while-calling-a-pyth/24908676#24908676 -- https://mail.python.org/mailman/listinfo/python-list
Re: Windows Studio 2008 Download
On Tue, Jul 29, 2014 at 5:54 AM, Colin J. Williams wrote: > ii. The Service Pack 1 has the original studio as a prerequisite. That is > no longer available from Microsoft. I haven't tried it but the Visual Studio 2008 Professional 90 Day Trial iso *is* available from Microsoft at [1]. This doesn't show up by searching download.microsoft.com. You have to stumble upon the link elsewhere. I guess Microsoft *really* doesn't want people to use VS2008 anymore :) [1] http://download.microsoft.com/download/8/1/d/81d3f35e-fa03-485b-953b-ff952e402520/VS2008ProEdition90dayTrialENUX1435622.iso -- https://mail.python.org/mailman/listinfo/python-list
Re: Exploring Python for next desktop GUI Project
Roy Smith writes: > In article <87mwbtjg9r@pascolo.net>, pec...@pascolo.net wrote: > >> >> 2. Python 2 or 3? Which will serve me better in the future? >> > >> > Long term (7 years), [Python] 3. >> >> I have STRONG suicidal intent and no access to treatment, >> should I better learn Python 2? > > In that case, go with PHP. ah, well said! but I went with PHP already and look at me now! -- https://mail.python.org/mailman/listinfo/python-list
Re: lxml and namespaces
On 29-7-2014 20:35, Marc Aymerich wrote:
> Got it!
> xml = lxml.builder.ElementMaker(
> nsmap = {
> None: "urn:iso:std:iso:20022:tech:xsd:pain.008.001.02",
> 'xsi': "http://www.w3.org/2001/XMLSchema-instance";,
> }
> )
> doc = xml.Document()
Thanks for taking the time to actually post the solution you came up with
yourself!
Irmen
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Re: lxml and namespaces
On Tue, Jul 29, 2014 at 8:19 PM, Marc Aymerich wrote:
> Hi, I'm desperately trying to construct an XML with the following document
> declaration:
>
> xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance”>
>
> I'm using LXML, and what I'm doing is this
>
> >>> from lxml import etree
> >>> from lxml.builder import E
> >>> doc = E.Document(
> ... {
> ... 'xmlns': "urn:iso:std:iso:20022:tech:xsd:pain.008.001.02",
> ... '{xmlns}xsi': "http://www.w3.org/2001/XMLSchema-instance";,
> ... }
> ... )
> >>> print etree.tostring(doc)
> http://www.w3.org/2001/XMLSchema-instance";
> xmlns="urn:iso:std:iso:20022:tech:xsd:pain.008.001.02"/>
>
>
> I've tried everything I can imagine and this is the best I can do :(
>
> Any idea on how to get the xmlns and xmlns:xsi attributes correctly?
>
Got it!
xml = lxml.builder.ElementMaker(
nsmap = {
None: "urn:iso:std:iso:20022:tech:xsd:pain.008.001.02",
'xsi': "http://www.w3.org/2001/XMLSchema-instance";,
}
)
doc = xml.Document()
--
Marc
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lxml and namespaces
Hi, I'm desperately trying to construct an XML with the following document
declaration:
http://www.w3.org/2001/XMLSchema-instance”>
I'm using LXML, and what I'm doing is this
>>> from lxml import etree
>>> from lxml.builder import E
>>> doc = E.Document(
... {
... 'xmlns': "urn:iso:std:iso:20022:tech:xsd:pain.008.001.02",
... '{xmlns}xsi': "http://www.w3.org/2001/XMLSchema-instance";,
... }
... )
>>> print etree.tostring(doc)
http://www.w3.org/2001/XMLSchema-instance";
xmlns="urn:iso:std:iso:20022:tech:xsd:pain.008.001.02"/>
I've tried everything I can imagine and this is the best I can do :(
Any idea on how to get the xmlns and xmlns:xsi attributes correctly?
Thanks!!
--
Marc
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Re: Windows Studio 2008 Download
On Tue, Jul 29, 2014 at 10:54 PM, Colin J. Williams wrote: > i. I've seen notes, in various places to say that the Express version is > not acceptable for compiling Python packages. Is it, in fact usable for > this purpose? I'm not 100% sure on the details, but I do believe the intention was always for the Express version to be suitable. > ii. The Service Pack 1 has the original studio as a prerequisite. That is > no longer available from Microsoft. There are probably unofficial third-party sites where you can get it, but if you're going to go down that route, you'd do better to just grab a third-party Numpy binary and save yourself the trouble. It's also possible to get a different compiler and build your own Python and extensions. But that's going to be a lot of work, too. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: Windows Studio 2008 Download
On 29/07/2014 13:54, Colin J. Williams wrote: i. I've seen notes, in various places to say that the Express version is not acceptable for compiling Python packages. Is it, in fact usable for this purpose? All wrong, I've been using the express editions for years with no problems. See here for more https://docs.python.org/devguide/setup.html#windows ii. The Service Pack 1 has the original studio as a prerequisite. That is no longer available from Microsoft. Any advice would be welcomed. Colin W. And please don't top post, thanks. -- My fellow Pythonistas, ask not what our language can do for you, ask what you can do for our language. Mark Lawrence -- https://mail.python.org/mailman/listinfo/python-list
Re: Load a CSV with different row lengths
Hey skip, I should've mentioned that I want to import my csv as a data frame or numpy array or as a table. Best regards, Ryan On Tue, Jul 29, 2014 at 6:29 AM, Skip Montanaro wrote: > > How can I load this into python? I tried using both NumPy and Pandas. > > To add to Peter's response, I would be very surprised if numpy or > Pandas couldn't be coaxed into loading your CSV file, but you didn't > provide any details about what you expected and what you got. I've > used Pandas to read CSV files a lot recently, and run into any > trouble. (I suspect all but a few have equal length rows, but in cases > where data are missing, I've found it generally inserts NaNs.) > > In general, you'll get more useful feedback with more complete > questions. I'm not saying you need to necessarily provide code, but a > traceback or unexpected output would be helpful. > > Skip > -- https://mail.python.org/mailman/listinfo/python-list
Re: Windows Studio 2008 Download
i. I've seen notes, in various places to say that the Express version is not acceptable for compiling Python packages. Is it, in fact usable for this purpose? ii. The Service Pack 1 has the original studio as a prerequisite. That is no longer available from Microsoft. Any advice would be welcomed. Colin W. On 28 July 2014 16:04, TP wrote: > Hmmm. Now that I think about it the full Microsoft Visual Studio 2008 > Service Pack 1 download I mentioned in my last email probably needs to have > Visual Studio 2008 already installed (it's been a number of years since I > had to install VS2008)? You could try it and see if it works. > > If not download the free Express version I mentioned instead. Trying to > find the download link for the free VS2008 Express version is much harder > so I guess that's why people keep asking for it :) > -- https://mail.python.org/mailman/listinfo/python-list
Re: Load a CSV with different row lengths
> How can I load this into python? I tried using both NumPy and Pandas. To add to Peter's response, I would be very surprised if numpy or Pandas couldn't be coaxed into loading your CSV file, but you didn't provide any details about what you expected and what you got. I've used Pandas to read CSV files a lot recently, and run into any trouble. (I suspect all but a few have equal length rows, but in cases where data are missing, I've found it generally inserts NaNs.) In general, you'll get more useful feedback with more complete questions. I'm not saying you need to necessarily provide code, but a traceback or unexpected output would be helpful. Skip -- https://mail.python.org/mailman/listinfo/python-list
Re: What happens when you 'break' a generator?
"Peter Otten" <__pete...@web.de> wrote in message
news:lr7ilg$de4$1...@ger.gmane.org...
> Frank Millman wrote:
>
>> Hi all
>>
>> Python 3.4.1
>>
>> Here is a simple generator -
>>
>> def test():
>> print('start')
>> for i in range(5):
>> yield i
>> print('done')
>>
>> x = test()
>> for j in x:
>> print(j)
>>
>> As expected, the output is -
>>
>> start
>> 0
>> 1
>> 2
>> 3
>> 4
>> done
>>
>> Here I break the loop -
>>
>> x = test()
>> for j in x:
>> print(j)
>> if j == 2:
>> break
>>
>> Now the output is -
>>
>> start
>> 0
>> 1
>> 2
>>
>> 'done' does not appear, so the generator does not actually terminate.
>> What
>> happens to it?
>>
>> My guess is that normal scoping rules apply. Using my example, the
>> generator is referenced by 'x', so when 'x' goes out of scope, the
>> generator is garbage collected, even though it never completed.
>>
>> Is this correct?
>
> Yes. In newer Pythons try...finally works, so you can see for yourself:
>
def f():
> ... try:
> ... for c in "abc": yield c
> ... finally:
> ... print("done")
> ...
g = f()
for c in g:
> ... print(c)
> ... if c == "b": break
> ...
> a
> b
del g
> done
>
> Also:
>
g = f()
next(g)
> 'a'
g.throw(GeneratorExit)
> done
> Traceback (most recent call last):
> File "", line 1, in
> File "", line 3, in f
> GeneratorExit
>
>
Thanks for the clarification, Peter.
The subconscious does funny things. When I scanned your reply quickly, I
could have sworn it said something about 'forcing a break'. When I read it
more slowly, I could not find that. Then I realised it actually says 'for c
in g' ...
Frank
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Re: What happens when you 'break' a generator?
On 7/29/2014 3:18 AM, Frank Millman wrote:
Hi all
Python 3.4.1
Here is a simple generator -
def test():
print('start')
for i in range(5):
yield i
print('done')
x = test()
for j in x:
print(j)
As expected, the output is -
start
0
1
2
3
4
done
Here I break the loop -
x = test()
for j in x:
print(j)
if j == 2:
break
Now the output is -
start
0
1
2
'done' does not appear, so the generator does not actually terminate. What
happens to it?
It sits there waiting for you to ask for the next value. Add
for j in x: print(j)
to exhaust it. Even then, it sits there until garbage collected.
--
Terry Jan Reedy
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Re: What happens when you 'break' a generator?
On 29.07.2014 09:18, Frank Millman wrote: there's not print 'done' statement at the and. Here I break the loop - x = test() for j in x: print(j) if j == 2: break Now the output is - start 0 1 2 'done' does not appear, so the generator does not actually terminate. What happens to it? My guess is that normal scoping rules apply. Using my example, the generator is referenced by 'x', so when 'x' goes out of scope, the generator is garbage collected, even though it never completed. Is this correct? Frank Millman -- Johannes Schneider Webentwicklung johannes.schnei...@galileo-press.de Tel.: +49.228.42150.xxx Galileo Press GmbH Rheinwerkallee 4 - 53227 Bonn - Germany Tel.: +49.228.42.150.0 (Zentrale) .77 (Fax) http://www.galileo-press.de/ Geschäftsführer: Tomas Wehren, Ralf Kaulisch, Rainer Kaltenecker HRB 8363 Amtsgericht Bonn -- https://mail.python.org/mailman/listinfo/python-list
Re: Load a CSV with different row lengths
Ryan de Vera wrote:
> I am trying to load a csv with different row lengths. For example,
>
> I have the csv
>
> a,b
> a,b,c,d
> a,b,c
>
> How can I load this into python? I tried using both NumPy and Pandas.
The csv module in the standard library can deal with varying row lengths
just fine:
>>> import csv
>>> with open("data.csv") as f:
... data = list(csv.reader(f))
...
>>> data
[['a', 'b'], ['a', 'b', 'c', 'd'], ['a', 'b', 'c']]
Depending on your use case you may need to do some post-processing in your
code (e. g. converting strings to numbers).
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Re: rpath alike feature for python scripts
On Mon, Jul 28, Albert-Jan Roskam wrote: > does this help: https://nixos.org/patchelf.html. It is not specific to > Python, though. No, this does not help because its not about patching the result. The questions is how to obtain the value with should be patched into the result. Looks like I have to dissect setup.py and mimic its behaviour in the Makefile. Olaf -- https://mail.python.org/mailman/listinfo/python-list
Re: What happens when you 'break' a generator?
Frank Millman wrote:
> Hi all
>
> Python 3.4.1
>
> Here is a simple generator -
>
> def test():
> print('start')
> for i in range(5):
> yield i
> print('done')
>
> x = test()
> for j in x:
> print(j)
>
> As expected, the output is -
>
> start
> 0
> 1
> 2
> 3
> 4
> done
>
> Here I break the loop -
>
> x = test()
> for j in x:
> print(j)
> if j == 2:
> break
>
> Now the output is -
>
> start
> 0
> 1
> 2
>
> 'done' does not appear, so the generator does not actually terminate. What
> happens to it?
>
> My guess is that normal scoping rules apply. Using my example, the
> generator is referenced by 'x', so when 'x' goes out of scope, the
> generator is garbage collected, even though it never completed.
>
> Is this correct?
Yes. In newer Pythons try...finally works, so you can see for yourself:
>>> def f():
... try:
... for c in "abc": yield c
... finally:
... print("done")
...
>>> g = f()
>>> for c in g:
... print(c)
... if c == "b": break
...
a
b
>>> del g
done
Also:
>>> g = f()
>>> next(g)
'a'
>>> g.throw(GeneratorExit)
done
Traceback (most recent call last):
File "", line 1, in
File "", line 3, in f
GeneratorExit
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Load a CSV with different row lengths
I am trying to load a csv with different row lengths. For example, I have the csv a,b a,b,c,d a,b,c How can I load this into python? I tried using both NumPy and Pandas. -- https://mail.python.org/mailman/listinfo/python-list
Re: TypeError: 'NoneType' object is not callable
Satish ML wrote:
> Hi,
>
> TypeError: 'NoneType' object is not callable? Why this error and what is
> the solution? Code:
> class SuperMeta:
> def __call__(self, classname, supers, classdict):
> print('In SuperMeta.call: ', classname, supers, classdict,
> sep='\n...') Class = self.__New__(classname, supers, classdict)
> self.__Init__(Class, classname, supers, classdict)
> class SubMeta(SuperMeta):
> def __New__(self, classname, supers, classdict):
> print('In SubMeta.new: ', classname, supers, classdict,
> sep='\n...') return type(classname, supers, classdict)
> def __Init__(self, Class, classname, supers, classdict):
> print('In SubMeta init:', classname, supers, classdict,
> sep='\n...') print('...init class object:',
> list(Class.__dict__.keys()))
> class Eggs:
> pass
> print('making class')
> class Spam(Eggs, metaclass=SubMeta()):
> data = 1
> def meth(self, arg):
> pass
> print('making instance')
> X = Spam()
>
> print('data:', X.data)
> Output:
> making class
> In SuperMeta.call:
> ...Spam
> ...(,)
> ...{'meth': , '__module__':
> '__main__', '__qualname__': 'Spam', 'data': 1} In SubMeta.new:
> ...Spam
> ...(,)
> ...{'meth': , '__module__':
> '__main__', '__qualname__': 'Spam', 'data': 1} In SubMeta init:
> ...Spam
> ...(,)
> ...{'meth': , '__module__':
> '__main__', '__qualname__': 'Spam', 'data': 1} ...init class object:
> ['meth', '__module__', 'data', '__doc__'] making instance
> Traceback (most recent call last):
> File "C:/Users/Satish/Desktop/Python/Metaclasses7.py", line 21, in
>
> X = Spam()
> TypeError: 'NoneType' object is not callable
As I have no idea what you are up to I can only list some adjustments you
probably need to make:
- __init__() and __new__() are spelt in lowercase.
- do not instantiate the metaclass:
class Spam(Eggs, metaclass=SubMeta):
...
- The metaclasses of Spam and Eggs must share a common base.
This can be achieved with
class SuperMeta(type):
...
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What happens when you 'break' a generator?
Hi all
Python 3.4.1
Here is a simple generator -
def test():
print('start')
for i in range(5):
yield i
print('done')
x = test()
for j in x:
print(j)
As expected, the output is -
start
0
1
2
3
4
done
Here I break the loop -
x = test()
for j in x:
print(j)
if j == 2:
break
Now the output is -
start
0
1
2
'done' does not appear, so the generator does not actually terminate. What
happens to it?
My guess is that normal scoping rules apply. Using my example, the generator
is referenced by 'x', so when 'x' goes out of scope, the generator is
garbage collected, even though it never completed.
Is this correct?
Frank Millman
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