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Where should signal handlers live in a django project?
...t(user)
user_logged_in.connect(on_logged_in)
I'm pretty new to Django (/python) so am open to anyone telling me that this is a terrible idea!
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Temporarily disable auto_now / auto_now_add
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For those looking at this when they are writing tests, there is a python library called freezegun which allows you to fake the time - so when the auto_now_add code runs, it gets the time you actually want. So:
from datetime import datetime, timedelta
from freezegun import freeze_time
wit...
Is it worthwile to learn assembly language? [closed]
...t languages, from lots of different paradigms. Learning Java, C++, C#, and Python doesn't count, since they are all instances of the same paradigm.
As assembly is at the root (well, close to the root) of all languages, I for one say that it is worthwhile to learn assembly.
Then again, it's worthw...
Can vim monitor realtime changes to a file
...want to do it in vim. I know I can read an opened file use tail -f sample.xml file, and when new content is written to the file, it'll also write the new content to my screen. Can I have vim automatically fill the new data when a file is updated?
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How to delete the contents of a folder?
How can I delete the contents of a local folder in Python?
24 Answers
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Can a program depend on a library during compilation but not runtime?
...l its possible dependencies. i.e. a libraries which can use four different XML libraries, but only needs one to work.
Many libraries, need other libraries in turn. These libraries are not needed at compile time but are needed at runtime. i.e. when the code is actually run.
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Creating temporary files in bash
...emporary files is important for more than just shell scripting. That's why python has tempfile, perl has File::Temp, ruby has Tempfile, etc…
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Why can't static methods be abstract in Java?
... used intuitively as this very question demonstrates. See "classmethod" in Python.
– Alexander Ljungberg
May 15 '10 at 1:01
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plot a circle with pyplot
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#!/usr/bin/python
import matplotlib.pyplot as plt
import numpy as np
def xy(r,phi):
return r*np.cos(phi), r*np.sin(phi)
fig = plt.figure()
ax = fig.add_subplot(111,aspect='equal')
phis=np.arange(0,6.28,0.01)
r =1.
ax.plot( *xy(r,...
How do I tell Matplotlib to create a second (new) plot, then later plot on the old one?
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