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When saving, how can you check if a field has changed?
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Overriding methods is recommended by the Django documentation: docs.djangoproject.com/en/dev/topics/db/models/…
– Colonel Sponsz
Aug 30 '10 at 19:55
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How to keep/exclude a particular package path when using proguard?
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Routes with Dash `-` Instead of Underscore `_` in Ruby on Rails
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What is the full path to the Packages folder for Sublime text 2 on Mac OS Lion
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In addition, the user's library directory is now hidden by default in newer versions of OSX. Run chflags nohidden ~/Library in the terminal to reveal them.
– DA.
Jul 4 '13 at 16:51
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Suppress or Customize Intro Message in Fish Shell
... environment variable named "fish_greeting", then nothing will be printed. By default, there is a fish_greeting variable. You can erase this:
set --erase fish_greeting
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How to find all positions of the maximum value in a list?
...ce for longer lists.
Edited: To address the two deficiencies pointed out by @John Machin. For (2) I attempted to optimize the tests based on guesstimated probability of occurrence of each condition and inferences allowed from predecessors. It was a little tricky figuring out the proper initializat...
Checking Bash exit status of several commands efficiently
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Wouldn't the exit code returned by test() always return 0 in case of an error since the last command executed was 'echo'. You might need to save the value of $? first.
– magiconair
Nov 2 '11 at 22:52
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Counting the Number of keywords in a dictionary in python
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Setting different color for each series in scatter plot on matplotlib
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I don't know what you mean by 'manually'. You can choose a colourmap and make a colour array easily enough:
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.cm as cm
x = np.arange(10)
ys = [i+x+(i*x)**2 for i in range(10)]
colors...
Set attribute without value
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Perhaps try:
var body = document.getElementsByTagName('body')[0];
body.setAttribute("data-body","");
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