python Programming Glossary: interpreterhttp://stackoverflow.com/questions/107705/python-output-buffering Is output buffering enabled by default in Python's interpreter for sys.stdout If the answer is positive what are all the ways..
Why does comparing strings in Python using either '==' or 'is' sometimes produce a different result? http://stackoverflow.com/questions/1504717/why-does-comparing-strings-in-python-using-either-or-is-sometimes-produce it to var1 var2 it returns True . now if I open my python interpreter and do the same is comparison it succeeds s1 'public' s2 'public'.. what happens in your code would be emulated in the interpreter like this a 'pub' b ''.join 'p' 'u' 'b' a b True a is b False..
Why do people write #!/usr/bin/env python on the first line of a Python script? http://stackoverflow.com/questions/2429511/why-do-people-write-usr-bin-env-python-on-the-first-line-of-a-python-script versions of Python installed usr bin env will ensure the interpreter used is the first one on your environment's PATH . The alternative.. file that's meant to be interpreted must indicate what interpreter to use by having a # at the start of the first line followed.. having a # at the start of the first line followed by the interpreter and any flags it may need otherwise I believe the default is..
How do I get the path of the current executed file in python? http://stackoverflow.com/questions/2632199/how-do-i-get-the-path-of-the-current-executed-file-in-python at all. For example it could come from the interactive interpreter or dynamically generated code stored only in memory. However.. def we_are_frozen # All of the modules are built in to the interpreter e.g. by py2exe return hasattr sys frozen def module_path encoding..
Import a module from a relative path http://stackoverflow.com/questions/279237/import-a-module-from-a-relative-path or executed with python execute instead of opening a new interpreter. import os sys inspect # realpath with make your script run..
Is there any way to kill a Thread in Python? http://stackoverflow.com/questions/323972/is-there-any-way-to-kill-a-thread-in-python bullet because if the thread is busy outside the python interpreter it will not catch the interruption. A good usage pattern of..
What does `if __name__ == “__main__”:` do? http://stackoverflow.com/questions/419163/what-does-if-name-main-do Expanding a bit on Harley's answer... When the Python interpreter reads a source file it executes all of the code found in it... define a few special variables. For example if the python interpreter is running that module the source file as the main program it..
What's the proper way to install pip, virtualenv, and distribute for Python? http://stackoverflow.com/questions/4324558/whats-the-proper-way-to-install-pip-virtualenv-and-distribute-for-python ' no site packages distribute' # Set to whatever python interpreter you want for your first environment PYTHON which python URL_BASE..
http://stackoverflow.com/questions/472000/python-slots it would be completely unnecessary if the Python interpreter was dynamic enough so that it would only require the dict when..
Setting the correct encoding when piping stdout in python http://stackoverflow.com/questions/492483/setting-the-correct-encoding-when-piping-stdout-in-python When piping the output of a python program the python interpreter gets confused about encoding and sets it to None. This means..
How can you profile a Python script? http://stackoverflow.com/questions/582336/how-can-you-profile-a-python-script You can call it from within your code or from the interpreter like this import cProfile cProfile.run 'foo ' Even more usefully..
How to do relative imports in Python? http://stackoverflow.com/questions/72852/how-to-do-relative-imports-in-python as '__main__' by passing the mod1.py as an argument to the interpreter. From PEP 328 Relative imports use a module's __name__ attribute..
How do I check what version of Python is running my script? http://stackoverflow.com/questions/1093322/how-do-i-check-what-version-of-python-is-running-my-script my script How can I check what version of the Python Interpreter is interpreting my script python version share improve this..
http://stackoverflow.com/questions/1190206/threading-in-python the interpreter there's one big lock the infamous Global Interpreter Lock . What that means in practice is that threads are useful.. just fine. Pros Actual concurrency for all tasks no Global Interpreter Lock . Scales to multiple processors can even scale to multiple..
Python Interpreter blocks Multithreaded DNS requests? http://stackoverflow.com/questions/1212716/python-interpreter-blocks-multithreaded-dns-requests Interpreter blocks Multithreaded DNS requests I just played around a little..
http://stackoverflow.com/questions/1482282/java-vs-python-on-hadoop a faster language. Python is also held back by its Global Interpreter Lock meaning it cannot push threads of a single process onto..
http://stackoverflow.com/questions/154443/how-to-avoid-pyc-files improve this question From What 䏭 New in Python 2.6 Interpreter Changes Python can now be prevented from writing .pyc or .pyo..
PyEval_InitThreads in Python 3: How/when to call it? (the saga continues ad nauseum) http://stackoverflow.com/questions/15470367/pyeval-initthreads-in-python-3-how-when-to-call-it-the-saga-continues-ad-naus must call PyEval_InitThreads and then release the Global Interpreter Lock. Okay seems straightforward enough. So prima facie all..
Why the Global Interpreter Lock? http://stackoverflow.com/questions/265687/why-the-global-interpreter-lock the Global Interpreter Lock What is exactly the function of Python's Global Interpreter.. Lock What is exactly the function of Python's Global Interpreter Lock Do other languages that are compiled to bytecode employ..
Multiprocessing vs Threading Python http://stackoverflow.com/questions/3044580/multiprocessing-vs-threading-python I know that Multiprocessing get's around the Global Interpreter Lock but what other advantages are there and can threading not..
How do threads work in Python, and what are common Python-threading specific pitfalls? http://stackoverflow.com/questions/31340/how-do-threads-work-in-python-and-what-are-common-python-threading-specific-pit share improve this question Yes because of the Global Interpreter Lock GIL there can only run one thread at a time. Here are some..
Which is faster in Python: x**.5 or math.sqrt(x)? http://stackoverflow.com/questions/327002/which-is-faster-in-python-x-5-or-math-sqrtx vs. 0.043000 Python 2.6 Psyco 2.0 0.128000 vs. 0.067000 Interpreter x .5 sqrt sqrt faster seconds seconds Python 3.2rc1 0.32..
How to re import an updated package while in Python Interpreter? http://stackoverflow.com/questions/684171/how-to-re-import-an-updated-package-while-in-python-interpreter to re import an updated package while in Python Interpreter I often test my module in the Python Interpreter and when I.. Python Interpreter I often test my module in the Python Interpreter and when I see an error I quickly update the .py file. But how.. update the .py file. But how do I make it reflect on the Interpreter So far I have been exiting and reentering the Interpreter because..
Is Python interpreted or compiled or both? http://stackoverflow.com/questions/6889747/is-python-interpreted-or-compiled-or-both Interpreted A high level language run and executed by an Interpreter a program which converts the high level language to machine..
A tool to convert MATLAB code to Python http://stackoverflow.com/questions/9845292/a-tool-to-convert-matlab-code-to-python Octave commands from within Python pymex Embeds the Python Interpreter in Matlab also on File Exchange matpy Access MATLAB in various..
Python Global Interpreter Lock (GIL) workaround on multi-core systems using taskset on Linux? http://stackoverflow.com/questions/990102/python-global-interpreter-lock-gil-workaround-on-multi-core-systems-using-task Global Interpreter Lock GIL workaround on multi core systems using taskset on Linux.. So I just finished watching this talk on the Python Global Interpreter Lock GIL http blip.tv file 2232410 . The gist of it is that..
Why is there no GIL in the Java Virtual Machine? Why does Python need one so bad? http://stackoverflow.com/questions/991904/why-is-there-no-gil-in-the-java-virtual-machine-why-does-python-need-one-so-bad to implement threads nicely without the need for a Global Interpreter Lock GIL while Python necessitates such an evil. java python..
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