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How do you get the magnitude of a vector in Numpy?
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numpy.linalg.norm contains safeguards against overflow that this implementation skips. For instance, try computing the norm of [1e200, 1e200]. There is a reason if it is slower...
– Federico Poloni
May 9 '18 ...
how do I make a single legend for many subplots with matplotlib?
...iable to put in the argument for legend ?
– patapouf_ai
Apr 10 '17 at 12:51
1
@patapouf_ai lines ...
What is the most efficient string concatenation method in python?
... up to a direct '+' operation or a ''.join(). But guess what? On my Python 2.7.5 system, the string interpolation operator rules them all and string.format() is the worst performer:
# concatenate_test.py
from __future__ import print_function
import timeit
domain = 'some_really_long_example.com'
l...
Add custom icons to font awesome
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Hi, I have generated font icons with a folder containing svg icons. But later i want to add a single icon to that , Is it possible to add ? or again i have to generate with the folder?.
– Varadha31590
Mar 3 '16 at 12:24
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Understanding generators in Python
...a slightly different technique, namely o.next() instead of next(o). Python 2.7 has next() call .next so you need not use the following in 2.7:
>>> g = (n for n in range(3, 5))
>>> g.next()
3
share
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What is the best way to detect a mobile device?
...f(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|wind...
Python : List of dict, if exists increment a dict value, if not append a new dict
...mple then becomes:
from collections import Counter # available in Python 2.7 and newer
urls_d = Counter(list_of_urls)
If you really need to do it the way you showed, the easiest and fastest way would be to use any one of these three examples, and then build the one you need.
from collections i...
How does Dijkstra's Algorithm and A-Star compare?
I was looking at what the guys in the Mario AI Competition have been doing and some of them have built some pretty neat Mario bots utilizing the A* (A-Star) Pathing Algorithm.
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Running shell command and capturing the output
..._output function works on almost all versions of Python still in wide use (2.7+).2 But for more recent versions, it is no longer the recommended approach.
Modern versions of Python (3.5 or higher): run
If you're using Python 3.5 or higher, and do not need backwards compatibility, the new run funct...
When is TCP option SO_LINGER (0) required?
...us. Instead of trying to avoid the state, we should understand it (Section 2.7)."
– mgd
Oct 26 '12 at 13:29
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