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What is the best way to repeatedly execute a function every x seconds?
I want to repeatedly execute a function in Python every 60 seconds forever (just like an NSTimer in Objective C). This code will run as a daemon and is effectively like calling the python script every minute using a cron, but without requiring that to be set up by the user.
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Which cryptographic hash function should I choose?
... I would say:
RIPEMD BROKEN, Should never be used as can be seen in this pdf
MD-5 BROKEN, Should never be used, can be broken in 2 minutes with a laptop
SHA-1 BROKEN, Should never be used, is broken in principal, attacks are getting better by the week
SHA-2 WEAK, Will probably be broken in the n...
How to identify whether a file is normal file or directory
How do you check whether a file is a normal file or a directory using python?
7 Answers
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How to pass arguments to a Button command in Tkinter?
Suppose I have the following Button made with Tkinter in Python:
18 Answers
18
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What does the star operator mean, in a function call?
What does the * operator mean in Python, such as in code like zip(*x) or f(**k) ?
5 Answers
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How to correct TypeError: Unicode-objects must be encoded before hashing?
...that answer.
Now, the error message is clear: you can only use bytes, not Python strings (what used to be unicode in Python < 3), so you have to encode the strings with your preferred encoding: utf-32, utf-16, utf-8 or even one of the restricted 8-bit encodings (what some might call codepages).
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round() doesn't seem to be rounding properly
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As Vinko says, you can use string formatting to do rounding for display.
Python has a module for decimal arithmetic if you need that.
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How to find all occurrences of an element in a list?
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Or Use range (python 3):
l=[i for i in range(len(lst)) if lst[i]=='something...']
For (python 2):
l=[i for i in xrange(len(lst)) if lst[i]=='something...']
And then (both cases):
print(l)
Is as expected.
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why is plotting with Matplotlib so slow?
I'm currently evaluating different python plotting libraries. Right now I'm trying matplotlib and I'm quite disappointed with the performance. The following example is modified from SciPy examples and gives me only ~ 8 frames per second!
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Confusion between numpy, scipy, matplotlib and pylab
Numpy, scipy, matplotlib, and pylab are common terms among they who use python for scientific computation.
3 Answers
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