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count the frequency that a value occurs in a dataframe column
I have a dataset
13 Answers
13
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What does “%.*s” mean in printf?
I got a code snippet in which there is a
4 Answers
4
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Python Requests and persistent sessions
I am using the requests module (version 0.10.0 with Python 2.5).
I have figured out how to submit data to a login form on a website and retrieve the session key, but I can't see an obvious way to use this session key in subsequent requests.
Can someone fill in the ellipsis in the code below or sug...
What is the opposite of :hover (on mouse leave)?
Is there any way to do the opposite of :hover using only CSS? As in: if :hover is on Mouse Enter , is there a CSS equivalent to on Mouse Leave ?
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AttributeError: 'module' object has no attribute 'urlopen'
I'm trying to use Python to download the HTML source code of a website but I'm receiving this error.
12 Answers
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Code Golf: Collatz Conjecture
Inspired by http://xkcd.com/710/ here is a code golf for it.
70 Answers
70
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How should I use git diff for long lines?
I'm running git-diff on a file, but the change is at the end of a long line.
15 Answers
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querySelector search immediate children
I have some jquery-like function:
10 Answers
10
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Check free disk space for current partition in bash
I am writing an installer in bash. The user will go to the target directory and runs the install script, so the first action should be to check that there is enough space. I know that df will report all file systems, but I was wondering if there was a way to get the free space just for the partition...
How many bytes in a JavaScript string?
I have a javascript string which is about 500K when being sent from the server in UTF-8. How can I tell its size in JavaScript?
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