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Convert Django Model object to dict with all of the fields intact
...Round: better model printing
If you want a django model that has a better python command-line display, have your models child-class the following:
from django.db import models
from itertools import chain
class PrintableModel(models.Model):
def __repr__(self):
return str(self.to_dict()...
What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
...the throw/catch construct you're familiar with from other languages (or to Python's raise/except). If you've encountered an error condition and you would throw over it in another language, you should raise in Ruby.
Ruby's throw/catch lets you break execution and climb up the stack looking for a catc...
What is the difference between canonical name, simple name and class name in Java Class?
...miter between the class and the package name :/
– José Roberto Araújo Júnior
Jun 9 '17 at 17:55
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What are the differences between poll and select?
... at once. This is a good introduction to the effort:
http://scotdoyle.com/python-epoll-howto.html
While this link has some nice graphs showing the benefits of epoll() (you will note that select() is by this point considered so inefficient and old-fashioned that it does not even get a line on these...
How to detect if a script is being sourced
...ve with a fallback solution for all remaining shells.
Tip of the hat to Stéphane Desneux and his answer for the inspiration (transforming my cross-shell statement expression into a sh-compatible if statement and adding a handler for other shells).
sourced=0
if [ -n "$ZSH_EVAL_CONTEXT" ]; then
...
Why are only a few video games written in Java? [closed]
...ugh to be the pioneer. (EVE Online is probably the best example we have of Python being usable, but which uses a fork of the main Python language, many C++ components for performance, and even that is for a fairly undemanding game in modern terms.)
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Override Java System.currentTimeMillis for testing time sensitive code
...g what is effectively "static" behavior anyway.
– Rogério
Nov 30 '14 at 17:04
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std::string formatting like sprintf
... For some reason, other languages use printf-like syntax: Java, Python (the new syntax is still closer to printf than to streams). Only C++ inflicts this verbose abomination on innocent human beings.
– quant_dev
Apr 5 '15 at 0:29
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Numpy first occurrence of value greater than existing value
.... Consider the test case of N being odd (and N/2.0 to force float if using python 2).
– askewchan
Feb 11 '17 at 1:25
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Multiple aggregations of the same column using pandas GroupBy.agg()
... 34.0 6.0
Lastly, if your column names aren't valid python identifiers, use a dictionary with unpacking:
df.groupby('kind')['height'].agg(**{'max height': 'max', ...})
Pandas < 0.25
In more recent versions of pandas leading upto 0.24, if using a dictionary for specify...