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How to change a django QueryDict to Python Dict?
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In Django 1.8 on Python 3 all I needed was dict(queryDict).
– fmalina
May 15 '15 at 19:16
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Why does multiprocessing use only a single core after I import numpy?
...e, but I thought I would ask here in case anyone has some insight from the Python end of things.
3 Answers
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Open file in a relative location in Python
Suppose python code is executed in not known by prior windows directory say 'main' , and wherever code is installed when it runs it needs to access to directory 'main/2091/data.txt' .
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How I can I lazily read multiple JSON values from a file/stream in Python?
I'd like to read multiple JSON objects from a file/stream in Python, one at a time. Unfortunately json.load() just .read() s until end-of-file; there doesn't seem to be any way to use it to read a single object or to lazily iterate over the objects.
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Find the nth occurrence of substring in a string
This seems like it should be pretty trivial, but I am new at Python and want to do it the most Pythonic way.
21 Answers
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Call a function with argument list in python
I'm trying to call a function inside another function in python, but can't find the right syntax. What I want to do is something like this:
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How does IPython's magic %paste work?
I want to copy already indented Python code / whole functions and classes into IPython. Everytime I try the indentation is screwed up and I get following error message:
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Get unique values from a list in python [duplicate]
...f you need to maintain the set order there is also a library on PyPI: pypi.python.org/pypi/ordered-set
– Jace Browning
Sep 26 '13 at 1:12
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Converting unix timestamp string to readable date
I have a string representing a unix timestamp (i.e. "1284101485") in Python, and I'd like to convert it to a readable date. When I use time.strftime , I get a TypeError :
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How do I exchange keys with values in a dictionary?
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Python 2:
res = dict((v,k) for k,v in a.iteritems())
Python 3 (thanks to @erik):
res = dict((v,k) for k,v in a.items())
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