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Node.js or Erlang
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@p_l From what I understand, the node approach is slightly different. While node is very good at handling async IO calls (ie web requests) it runs in a single-threaded environment. So it's great at dispatching but not so good at C...
Putting text in top left corner of matplotlib plot
...e this free space for the text.
EDIT: here you have an example:
In [17]: from pylab import figure, text, scatter, show
In [18]: f = figure()
In [19]: ax = f.add_subplot(111)
In [20]: scatter([3,5,2,6,8],[5,3,2,1,5])
Out[20]: <matplotlib.collections.CircleCollection object at 0x0000000007439A90&...
Pandas read_csv low_memory and dtype options
...oken data that breaks when dtypes are defined
import pandas as pd
try:
from StringIO import StringIO
except ImportError:
from io import StringIO
csvdata = """user_id,username
1,Alice
3,Bob
foobar,Caesar"""
sio = StringIO(csvdata)
pd.read_csv(sio, dtype={"user_id": int, "username": "string"...
Modular multiplicative inverse function in Python
...
Maybe someone will find this useful (from wikibooks):
def egcd(a, b):
if a == 0:
return (b, 0, 1)
else:
g, y, x = egcd(b % a, a)
return (g, x - (b // a) * y, y)
def modinv(a, m):
g, x, y = egcd(a, m)
if g != 1:
r...
How to save username and password with Mercurial?
...u want a secure option, but aren't familiar with SSH, why not try this?
From the docs ...
The extension prompts for the HTTP password on the first pull/push
to/from given remote repository (just like it is done by default), but
saves the password (keyed by the combination of username and ...
How to fix the flickering in User controls
In my application i am constantly moving from one control to another. I have created no. of user controls, but during navigation my controls gets flicker. it takes 1 or 2 sec to update. I tried to set this
...
Is there any way to put malicious code into a regular expression?
...uby, ...) talks about ways that most modern NFAs, which all seem to derive from Henry Spencer’s code, suffer severe performance degradation, but where a Thompson‐style NFA has no such problems.
If you only admit patterns that can be solved by DFAs, you can compile them up as such, and they will...
Sound effects in JavaScript / HTML5
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Thanks for noting this. I learned this method from has.js, but I find it has some issues in Firefox, and apparently in Opera too according to the has.js source code. (refs: github.com/phiggins42/has.js/issues/48 github.com/phiggins42/has.js/blob/master/detect/audio.js#L1...
How do I get indices of N maximum values in a NumPy array?
... @1a1a11a it means reverse an array (literally, takes a copy of an array from unconstrained min to unconstrained max in a reversed order)
– FizBack
Oct 19 '16 at 13:51
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Benefits of header-only libraries
...tages of a header-only library:
Bigger object files. Every inline method from the library that is used in some source file will also get a weak symbol, out-of-line definition in the compiled object file for that source file. This slows down the compiler and also slows down the linker. The compiler...