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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 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...
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.)
...
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
...
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...
Why shouldn't I use “Hungarian Notation”?
...er's job also, but that would incur a huge overhead for dynamic languages (Python, Ruby, PHP or Javascript).
– too much php
Dec 29 '08 at 3:45
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Truly understanding the difference between procedural and functional
... style there is pretty hard to read compared the the "functional style" in python: def odd_words(words): return [x for x in words if odd(len(x))]
– boxed
Dec 12 '13 at 9:11
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What is the difference between related SQLite data-types like INT, INTEGER, SMALLINT and TINYINT?
...'t have to handle such non-zero numeric fields specially. An example using Python's sqlite3 module would be,
conn_or_cursor.execute(
"INSERT INTO table VALUES (" + ",".join("?" * num_values) + ")",
str_value_tuple) # no need to convert some from str to int/float
In the above example, ...