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PyPy — How can it possibly beat CPython?
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Q1. How is this possible?
Manual memory management (which is what CPython does with its counting) can be slower than automatic management in some cases.
Limitations in the implementation of the CPython interpreter preclude certain optimisations that PyPy can do (eg. fine grained locks).
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What is __pycache__?
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When you run a program in python, the interpreter compiles it to bytecode first (this is an oversimplification) and stores it in the __pycache__ folder. If you look in there you will find a bunch of files sharing the names of the .py files in your pro...
Convert from ASCII string encoded in Hex to plain ASCII?
How can I convert from hex to plain ASCII in Python?
8 Answers
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Difference between open and codecs.open in Python
There are two ways to open a text file in Python:
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How to get a reference to current module's attributes in Python
...re it is defined, not the module
from which it is called).
http://docs.python.org/library/functions.html#globals
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UnicodeDecodeError when redirecting to file
...n a file. In order to be displayed or properly "understood" (by, say, the Python interpreter), streams of bytes are decoded into characters. A few encodings (UTF-8, UTF-16,…) are defined by Unicode for its list of characters (Unicode thus defines both a list of characters and encodings for these ...
How to check if a python module exists without importing it
I need to know if a python module exists, without importing it.
13 Answers
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How to check if a string in Python is in ASCII?
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Inefficient or not, the more pythonic method is the try/except.
– Jeremy Cantrell
Oct 14 '08 at 14:38
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What blocks Ruby, Python to get Javascript V8 speed? [closed]
Are there any Ruby / Python features that are blocking implementation of optimizations (e.g. inline caching ) V8 engine has?
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What's the difference between eval, exec, and compile?
I've been looking at dynamic evaluation of Python code, and come across the eval() and compile() functions, and the exec statement.
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