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Does Python have a string 'contains' substring method?
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edited Nov 11 '15 at 23:30
answered Aug 9 '10 at 2:56
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Multiple constructors in python? [duplicate]
Is it not possible to define multiple constructors in Python, with different signatures? If not, what's the general way of getting around it?
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How to save all the variables in the current python session?
I want to save all the variables in my current python environment. It seems one option is to use the 'pickle' module. However, I don't want to do this for 2 reasons:
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How to serialize SqlAlchemy result to JSON?
... fields = {}
for field in [x for x in dir(obj) if not x.startswith('_') and x != 'metadata']:
data = obj.__getattribute__(field)
try:
json.dumps(data) # this will fail on non-encodable values, like other classes
fiel...
Why is using 'eval' a bad practice?
...e. Just to name a few reasons:
There is almost always a better way to do it
Very dangerous and insecure
Makes debugging difficult
Slow
In your case you can use setattr instead:
class Song:
"""The class to store the details of each song"""
attsToStore=('Name', 'Artist', 'Album', 'Genre',...
python: How do I know what type of exception occurred?
...standing when you can break the "rule". Here is an explanation. Basically, it's so that you don't hide:
the fact that an error occurred
the specifics of the error that occurred (error hiding antipattern)
So as long as you take care to do none of those things, it's OK to catch the generic except...
How to initialize all members of an array to the same value?
...e a large array in C (not C++ if that makes a difference). I want to initialize all members of the same value.
23 Answe...
Mac zip compress without __MACOSX folder?
When I compress files with the built in zip compressor in Mac OSX, it results in an extra folder titled "__MACOSX" created in the extracted zip.
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How do I access the request object or any other variable in a form's clean() method?
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The answer by Ber - storing it in threadlocals - is a very bad idea. There's absolutely no reason to do it this way.
A much better way is to override the form's __init__ method to take an extra keyword argument, request. This stores the request in the ...
List all the modules that are part of a python package?
...d discussion , which is not really conclusive, but I'd love to have a definite answer before I roll out my own solution based on os.listdir().
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