大约有 9,000 项符合查询结果(耗时:0.0242秒) [XML]

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Python nonlocal statement

What does the Python nonlocal statement do (in Python 3.0 and later)? 9 Answers 9 ...
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In Python, how do you convert a `datetime` object to seconds?

Apologies for the simple question... I'm new to Python... I have searched around and nothing seems to be working. 10 Answer...
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What is the best way to call a script from another script?

... This is possible in Python 2 using execfile("test2.py") See the documentation for the handling of namespaces, if important in your case. In Python 3, this is possible using (thanks to @fantastory) exec(open("test2.py").read()) However, yo...
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How to exit from Python without traceback?

I would like to know how to I exit from Python without having an traceback dump on the output. 10 Answers ...
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Assigning a variable NaN in python without numpy

...s have a NaN constant you can use to assign a variable the value NaN. Can python do this without using numpy? 6 Answers ...
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How to create abstract properties in python abstract classes

... Since Python 3.3 a bug was fixed meaning the property() decorator is now correctly identified as abstract when applied to an abstract method. Note: Order matters, you have to use @property before @abstractmethod Python 3.3+: (pyt...
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Python exit commands - why so many and when should each be used?

It seems that python supports many different commands to stop script execution. The choices I've found are: quit() , exit() , sys.exit() , os._exit() ...
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How can I pass a list as a command-line argument with argparse?

... nargs='+', help='<Required> Set flag', required=True) # Use like: # python arg.py -l 1234 2345 3456 4567 nargs='+' takes 1 or more arguments, nargs='*' takes zero or more. append parser.add_argument('-l','--list', action='append', help='<Required> Set flag', required=True) # Use lik...
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setuptools vs. distutils: why is distutils still a thing?

Python has a confusing history of tools that can be used to package and describe projects: these include distutils in the Standard Library, distribute , distutils2 , and setuptools (and maybe more). It appears that distribute and distutils2 were discontinued in favor of setuptools , which...
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PyLint, PyChecker or PyFlakes? [closed]

... much choose your check rules) on the following script : #!/usr/local/bin/python # by Daniel Rosengren modified by e-satis import sys, time stdout = sys.stdout BAILOUT = 16 MAX_ITERATIONS = 1000 class Iterator(object) : def __init__(self): print 'Rendering...' for y in xran...