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Which regular expression operator means 'Don't' match this character?
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Python needs the ? in order to tell that it's an extension. Other regex engines may have their own rules.
– Ignacio Vazquez-Abrams
May 8 '11 at 5:21
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Mixin vs inheritance
...tiate abstract class Abstraction with
abstract methods complex_method
In Python, some classes in the abc module are examples of parent classes that both provide functionality through inheritance and abstract interfaces that must be implemented by the subclass. These ideas are not mutually exclusiv...
Maximum single-sell profit
...(1) space.
Hope this helps!
EDIT: If you're interested, I've coded up a Python version of these four algorithms so that you can play around with them and judge their relative performances. Here's the code:
# Four different algorithms for solving the maximum single-sell profit problem,
# each of ...
Redefine tab as 4 spaces
... help here too) Also, 8-char-wide tabs is "the standard" -- your terminal, Python, and many other tools default to 8-char-wide-tabs.
– Laurence Gonsalves
Jan 16 '19 at 21:04
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Get class name of django model
...g for; as for the other give me the parent class.
– ppython
Oct 16 '17 at 13:54
If you want something more implicit th...
Why can't static methods be abstract in Java?
... used intuitively as this very question demonstrates. See "classmethod" in Python.
– Alexander Ljungberg
May 15 '10 at 1:01
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VIM Disable Automatic Newline At End Of File
...hp file, no matter what Vim does.
And now, the script itself:
#!/usr/bin/python
# a filter that strips newline from last line of its stdin
# if the last line is empty, leave it as-is, to make the operation idempotent
# inspired by: https://stackoverflow.com/questions/1654021/how-can-i-delete-a-ne...
Skip Git commit hooks
I'm looking at a git hook which looks for print statements in Python code. If a print statement is found, it prevents the git commit.
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Character Limit in HTML
...n. That's why it's far better to check it on the server side, with a PHP / Python / whatever script.
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Double not (!!) operator in PHP
...alue the language assigns to the result of any expression. For example, in Python:
>>> not not []
False
>>> not not [False]
True
It can be convenient in places where you want to reduce a complex value down to something like "is there a value at all?".
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