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How do I detect the Python version at runtime? [duplicate]

I have a Python file which might have to support Python versions < 3.x and >= 3.x. Is there a way to introspect the Python runtime to know the version which it is running (for example, 2.6 or 3.2.x )? ...
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Combining node.js and Python

...b project, but there are few computational tasks for which we would prefer Python. We also already have a Python code for them. We are highly concerned about speed, what is the most elegant way how to call a Python "worker" from node.js in an asynchronous non-blocking way? ...
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Changing default encoding of Python?

I have many "can't encode" and "can't decode" problems with Python when I run my applications from the console. But in the Eclipse PyDev IDE, the default character encoding is set to UTF-8 , and I'm fine. ...
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What's the canonical way to check for type in Python?

... some cases: if issubclass(type(o), str): See Built-in Functions in the Python Library Reference for relevant information. One more note: in this case, if you're using Python 2, you may actually want to use: if isinstance(o, basestring): because this will also catch Unicode strings (unicode i...
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Working with UTF-8 encoding in Python source [duplicate]

... In the source header you can declare: #!/usr/bin/env python # -*- coding: utf-8 -*- .... It is described in the PEP 0263: Then you can use UTF-8 in strings: #!/usr/bin/env python # -*- coding: utf-8 -*- u = 'idzie wąż wąską dróżką' uu = u.decode('utf8') s = uu.encod...
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What is the global interpreter lock (GIL) in CPython?

... Python's GIL is intended to serialize access to interpreter internals from different threads. On multi-core systems, it means that multiple threads can't effectively make use of multiple cores. (If the GIL didn't lead to this...
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The modulo operation on negative numbers in Python

I've found some strange behaviour in Python regarding negative numbers: 8 Answers 8 ...
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How can I force division to be floating point? Division keeps rounding down to 0?

... In Python 2, division of two ints produces an int. In Python 3, it produces a float. We can get the new behaviour by importing from __future__. &gt;&gt;&gt; from __future__ import division &gt;&gt;&gt; a = 4 &gt;&gt;&gt; b = 6 ...
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How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP

How can I make any use of PYTHONPATH? When I try to run a script in the path the file is not found. When I cd to the directory holding the script the script runs. So what good is the PYTHONPATH? ...
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How to stop/terminate a python script from running?

...ts to tokeniza 349 text files! How can I stop it? How can I stop a running Python program? 16 Answers ...