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What is the difference between __init__ and __call__?
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In Python, functions are first-class objects, this means: function references can be passed in inputs to other functions and/or methods, and executed from inside them.
Instances of Classes (aka Objects), can be treated as if th...
MySQL vs PostgreSQL for Web Applications [closed]
I am working on a web application using Python (Django) and would like to know whether MySQL or PostgreSQL would be more suitable when deploying for production.
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eval command in Bash and its typical uses
... test.py
print("export foo=bar/baz/womp")
print(". activate.sh")
$ eval $(python test.py)
bash: export: `.': not a valid identifier
bash: export: `activate.sh': not a valid identifier
$ eval "$(python test.py)"
I got activated!
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Remove all values within one list from another list? [duplicate]
...,3,4] and a sublist [2,3], then the result should be [1,2,2,4], is there a Pythonic way to do that?
– user
Mar 2 '14 at 5:20
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How to reset a form using jQuery with .reset() method
...time i use console.log, i have no idea where to look out for it. i'm using Python IDLE and a terminal to run the python script. the javascript is in it. anyway, when i use `alert($('#configform')[0]), it gives me [object HTMLFormElement]
– yvonnezoe
May 9 '13 a...
How to construct a timedelta object from a simple string
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@verdesmarald So, as of python 3.5, is there an elegant solution without using external libraries and without assuming timespan is less than 24 hours?
– max
Apr 22 '16 at 18:57
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Getting the closest string match
...information and links to primary research papers. The ELAND link goes to a PDF with useful figures illustrating the concepts involved, and shows how to deal with insertions and deletions.
Finally, while these algorithms have basically solved the problem of (re)sequencing single human genomes (a bil...
How to repeat a string a variable number of times in C++?
...ect idiomatic way to repeat strings in C++ equivalent to the * operator in Python or the x operator in Perl. If you're repeating a single character, the two-argument constructor (as suggested by previous answers) works well:
std::string(5, '.')
This is a contrived example of how you might use an ...
Evenly distributing n points on a sphere
... the points).
Alternatively, building on the other answer here (and using Python):
> cat ll.py
from math import asin
nx = 4; ny = 5
for x in range(nx):
lon = 360 * ((x+0.5) / nx)
for y in range(ny):
midpt = (y+0.5) / ny ...
How to check if a column exists in Pandas
...'A', df['B']) + df['C']
The DataFrame get method has similar behavior as python dictionaries.
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