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Python - Create a list with initial capacity
... if the preallocation method (size*[None]) itself is inefficient? Does the python VM actually allocate the list at once, or grow it gradually, just like the append() would?
– haridsv
Nov 15 '09 at 3:01
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Does Python support short-circuiting?
Does Python support short-circuiting in boolean expressions?
3 Answers
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How do I create a constant in Python?
Is there a way to declare a constant in Python? In Java we can create constant values in this manner:
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What does a b prefix before a python string mean?
In a python source code I stumbled upon I've seen a small b before a string like in:
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How to call a Parent Class's method from Child Class in Python?
When creating a simple object hierarchy in Python, I'd like to be able to invoke methods of the parent class from a derived class. In Perl and Java, there is a keyword for this ( super ). In Perl, I might do this:
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How can I use inverse or negative wildcards when pattern matching in a unix/linux shell?
Say I want to copy the contents of a directory excluding files and folders whose names contain the word 'Music'.
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ImportError: No module named PIL
...ve in fact installed PIL.
Having a different name for the library and the Python module is unusual, but this is what was chosen for (some versions of) PIL.
You can get more information about how to use this module from the official tutorial.
PS: In fact, on some installs, import PIL does work, wh...
Convert two lists into a dictionary
...rwise dict constructor and zip function are awesomely useful: https://docs.python.org/3/library/functions.html#func-dict
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How do I parse XML in Python?
I have many rows in a database that contains XML and I'm trying to write a Python script to count instances of a particular node attribute.
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What is the exact meaning of Git Bash?
...sed by MinGW (and others), was forked in the past from Cygwin
Cygwin - a Linux like environment, which was used in the past to build Git for Windows, nowadays has no relation to msysGit
So, your two lines description about "git bash" are:
"Git bash" is a msys shell included in "Git for Windo...