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Bash script absolute path with OS X
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A more command-line-friendly variant of the Python solution:
python -c "import os; print(os.path.realpath('$1'))"
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What is getattr() exactly and how do I use it?
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Objects in Python can have attributes -- data attributes and functions to work with those (methods). Actually, every object has built-in attributes.
For example you have an object person, that has several attributes: name, gender, etc....
Operation on every pair of element in a list
Using Python, I'd like to compare every possible pair in a list.
4 Answers
4
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How to split a column into two columns?
...rst two parameters of .str.split() do,
I recommend the docs for the plain Python version of the method.
But how do you go from:
a column containing two-element lists
to:
two columns, each containing the respective element of the lists?
Well, we need to take a closer look at the .str attrib...
Project structure for Google App Engine
...lt to keep things organized - mainly due to the fact that this is my first python project, and I didn't know anything about it until I started working.
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Use cases for the 'setdefault' dict method
The addition of collections.defaultdict in Python 2.5 greatly reduced the need for dict 's setdefault method. This question is for our collective education:
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Non-alphanumeric list order from os.listdir()
I often use python to process directories of data. Recently, I have noticed that the default order of the lists has changed to something almost nonsensical. For example, if I am in a current directory containing the following subdirectories: run01, run02, ... run19, run20, and then I generate a list...
“x not in y” or “not x in y”
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You've run into a CPython peephole optimisation; a compile-time optimisation that other Python implementations such as Jython and IronPython are free to ignore or copy (it is not part of the language specification).
– Mart...
Argparse optional positional arguments?
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@dolan: Yes, + works, too. See docs.python.org/2/library/argparse.html#nargs for the details.
– Vinay Sajip
Jan 8 '13 at 23:53
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Failed loading english.pickle with nltk.data.load
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I had this same problem. Go into a python shell and type:
>>> import nltk
>>> nltk.download()
Then an installation window appears. Go to the 'Models' tab and select 'punkt' from under the 'Identifier' column. Then click Download and it wil...