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Determine if variable is defined in Python [duplicate]
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@einpoklum, Python uses exception StopIteration within just about every for statement -- that's how an iterator lets it known that it's all done. And of course, it is far from "an exceptional case" for iteration to be done -- indeed, on...
In Python, how do I create a string of n characters in one line of code?
I need to generate a string with n characters in Python. Is there a one line answer to achieve this with the existing Python library? For instance, I need a string of 10 letters:
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Outputting data from unit test in python
If I'm writing unit tests in python (using the unittest module), is it possible to output data from a failed test, so I can examine it to help deduce what caused the error? I am aware of the ability to create a customized message, which can carry some information, but sometimes you might deal with m...
Extracting extension from filename in Python
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Yes. Use os.path.splitext(see Python 2.X documentation or Python 3.X documentation):
>>> import os
>>> filename, file_extension = os.path.splitext('/path/to/somefile.ext')
>>> filename
'/path/to/somefile'
>>> file_exte...
How do I create a multiline Python string with inline variables?
I am looking for a clean way to use variables within a multiline Python string. Say I wanted to do the following:
7 Answers...
Reading a binary file with python
I find particularly difficult reading binary file with Python. Can you give me a hand?
I need to read this file, which in Fortran 90 is easily read by
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Check to see if python script is running
I have a python daemon running as a part of my web app/ How can I quickly check (using python) if my daemon is running and, if not, launch it?
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How do I get list of methods in a Python class?
...gt;>> from optparse import OptionParser
>>> import inspect
#python2
>>> inspect.getmembers(OptionParser, predicate=inspect.ismethod)
[([('__init__', <unbound method OptionParser.__init__>),
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('add_option', <unbound method OptionParser.add_option>),
('add_opti...
Invalid syntax when using “print”? [duplicate]
I'm learning Python and can't even write the first example:
4 Answers
4
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How do I pick 2 random items from a Python set? [duplicate]
I currently have a Python set of n size where n >= 0. Is there a quick 1 or 2 lines Python solution to do it? For example, the set will look like:
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