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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...
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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Tricks to manage the available memory in an R session
...nguage where development incorporates a REPL and a file being edited (i.e. Python). rm(ls=list()) and source() works too, but re-opening is better (packages cleared too).
– Vince
Jun 15 '10 at 5:31
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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
12
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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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How to delete a record in Django models?
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