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Implementing slicing in __getitem__
...ing builtins types like list or tuple you must implements __getslice__ for python 2.X versions. see docs.python.org/2/reference/datamodel.html#object.__getslice__
– gregorySalvan
Aug 28 '14 at 5:17
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Python Pandas: Get index of rows which column matches certain value
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Add up a column of numbers at the Unix shell
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python3 -c"import os; print(sum(os.path.getsize(f) for f in open('files.txt').read().split()))"
Or if you just want to sum the numbers, pipe into:
python3 -c"import sys; print(sum(int(x) for x in sys.stdin))"
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How to unset a JavaScript variable?
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http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf
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Get path from open file in Python
...g with it, then you can do that in the following conventional way using os Python module.
>>> import os
>>> f = open('/Users/Desktop/febROSTER2012.xls')
>>> os.path.dirname(f.name)
>>> '/Users/Desktop/'
This way you can get hold of the directory structure.
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How can strings be concatenated?
How to concatenate strings in python?
7 Answers
7
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Webrick as production server vs. Thin or Unicorn?
... your site does something that takes time, e.g. sends e-mails or generates PDF files, you should make WEBrick multi-threaded. You want to handle multiple requests at a time.
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python pandas: apply a function with arguments to a series
I want to apply a function with arguments to a series in python pandas:
4 Answers
4
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How do I browse an old revision of a Subversion repository through the web view?
... the built-in WebDAV interface. From svnbook.red-bean.com/en/1.5/svn-book.pdf: >Can I View Older Revisions? >With an ordinary web browser? In one word: nope. At least, not with mod_dav_svn as your only tool.
– Zach Young
Mar 3 '14 at 22:53
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Filter dict to contain only certain keys?
...Uses dictionary comprehension.
If you use a version which lacks them (ie Python 2.6 and earlier), make it dict((your_key, old_dict[your_key]) for ...). It's the same, though uglier.
Note that this, unlike jnnnnn's version, has stable performance (depends only on number of your_keys) for old_dicts...