63
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13
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How to comment out a block of Python code in Vim
I was wondering if there was any key mapping in Vim to allow me to indent certain lines of code (whether those
52
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3
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Why does Python's hash of infinity have the digits of π?
The hash of infinity in Python has digits matching pi: >>> inf = float('inf') >>>
58
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11
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506
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Safest way to convert float to integer in python?
Python's math module contain handy functions like floor & ceil. These functions take a floating point
61
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13
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Calculating arithmetic mean (one type of average) in Python
Is there a built-in or standard library method in Python to calculate the arithmetic mean (one type of average
56
votes
18
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807
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Convert a number range to another range, maintaining ratio
I'm trying to convert one range of numbers to another, maintaining ratio. Maths is not my strong point.
67
votes
30
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Fastest way to list all primes below N
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59
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10
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What is the standard way to add N seconds to datetime.time in Python?
Given a datetime.time value in Python, is there a standard way to add an integer number of seconds to it, so t
66
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16
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What is the difference between '/' and '//' when used for division?
Is there a benefit to using one over the other? In Python 2, they both seem to return the same results: >&
53
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18
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785
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How can I check for NaN values?
float('nan') results in Nan (not a number). But how do I check for it? Should be very easy, but I ca
58
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9
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How to state in requirements.txt a direct github source
I've installed a library using the command pip install git+git://github.com/mozilla/elasticutils.git whi
51
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26
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319
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How do I connect to a MySQL Database in Python?
How do I connect to a MySQL database using a python program?
61
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11
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519
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Installing specific package versions with pip
I'm trying to install version 1.2.2 of the MySQL_python adaptor, using a fresh virtualenv created with th
60
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17
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open() in Python does not create a file if it doesn't exist
What is the best way to open a file as read/write if it exists, or if it does not, then create it and open it
55
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13
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50
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9
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reading v 7.3 mat file in python
I am trying to read a matlab file with the following code import scipy.io mat = scipy.io.loadmat('test.m
66
votes
3
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628
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Why does numpy std() give a different result to matlab std()?
I try to convert matlab code to numpy and figured out that numpy has a different result with the std function.
54
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7
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733
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What is the equivalent of MATLAB's repmat in NumPy
I would like to execute the equivalent of the following MATLAB code using NumPy: repmat([1; 1], [1 1 1]). How
59
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12
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What is the Python equivalent of Matlab's tic and toc functions?
What is the Python equivalent of Matlab's tic and toc functions?
55
votes
10
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758
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Representing and solving a maze given an image
What is the best way to represent and solve a maze given an image? Given an JPEG image (as seen above), wha
67
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12
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List of tables, db schema, dump etc using the Python sqlite3 API
For some reason I can't find a way to get the equivalents of sqlite's interactive shell commands: .
