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How to add multiple objects to ManyToMany relationship at once in Django ?
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Use: object.m2mfield.add(*items) as described in the documentation:
add() accepts an arbitrary number of arguments, not a list of them.
add(obj1, obj2, obj3, ...)
To expand that list into arguments, use *
add(*[obj1, obj2, obj3])
A...
How to make button look like a link?
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362
button {
background: none!important;
border: none;
padding: 0!important;
/*optio...
When saving, how can you check if a field has changed?
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25 Answers
25
Active
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How to detect iPhone 5 (widescreen devices)?
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24 Answers
24
Active
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Reduce left and right margins in matplotlib plot
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259
One way to automatically do this is the bbox_inches='tight' kwarg to plt.savefig.
E.g.
impor...
Bash tool to get nth line from a file
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832
head and pipe with tail will be slow for a huge file. I would suggest sed like this:
sed 'NUMq;...
How to call a Parent Class's method from Child Class in Python?
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edited Mar 11 at 4:22
Jason
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answered Apr ...
Python Script execute commands in Terminal
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201
There are several ways to do this:
A simple way is using the os module:
import os
os.system(...
How to select rows that have current day's timestamp?
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John WooJohn Woo
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How can I remove the first line of a text file using bash/sed script?
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Try tail:
tail -n +2 "$FILE"
-n x: Just print the last x lines. tail -n 5 would give you the last 5 lines of the input. The + sign kind of inverts the argument and make tail print anything but the first x-1 lines. tail -n +1 would print the w...