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How to sort a list/tuple of lists/tuples by the element at a given index?
...is faster and simpler: key=itemgetter(1) and at the beginning of the file: from operator import itemgetter
– Joschua
Mar 13 '13 at 20:08
3
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Django 1.7 - makemigrations not detecting changes
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If you're changing over from an existing app you made in django 1.6, then you need to do one pre-step (as I found out) listed in the documentation:
python manage.py makemigrations your_app_label
The documentation does not make it obvious that ...
How to get one value at a time from a generator function in Python?
Very basic question - how to get one value from a generator in Python?
6 Answers
6
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Remove multiple elements from array in Javascript/jQuery
...le the second array contains indices of the values which should be removed from the first array. For example:
21 Answers
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get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
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Adapted from the Date and Time Programming Guide:
// Right now, you can remove the seconds into the day if you want
NSDate *today = [NSDate date];
// All intervals taken from Google
NSDate *yesterday = [today dateByAddingTimeInterv...
Play an audio file using jQuery when a button is clicked
...tion for audio elements. We can only pause them. And when we want to start from the beginning of the audio file we change its .currentTime. We will use this line in our example audioElement.currentTime = 0;. To achieve .stop() function we first pause the file then reset its time.
We may want to kno...
git add remote branch
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I am not sure if you are trying to create a remote branch from a local branch or vice versa, so I've outlined both scenarios as well as provided information on merging the remote and local branches.
Creating a remote called "github":
git remote add github git://github.com/jdoe/coo...
What is the difference between #include and #include “filename”?
...rce file is "searched for in an implementation-defined manner". See answer from piCookie.
– Richard Corden
Sep 17 '08 at 13:41
63
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Converting JSON String to Dictionary Not List
...nts, and then adding [0] on the end of it will take just the first element from that resulting list slice. What you need to use to get the result you want is a list comprehension:
[p[0] for p in datapoints[0:5]]
Here's a simple way to calculate the mean:
sum(p[0] for p in datapoints[0:5])/5. # R...
How to percent-encode URL parameters in Python?
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Python 2
From the docs:
urllib.quote(string[, safe])
Replace special characters in string
using the %xx escape. Letters, digits,
and the characters '_.-' are never
quoted. By default, this function is
intended for quotin...