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Get difference between two lists
...fo objects I was using set subtraction. To exclude certain tarinfo objects from being extracted from the archive. Creating the new list was fast but super slow during extraction. The reason evaded me at first. Turns out reordering the tarinfo objects list caused a huge performance penalty. Switching...
Removing carriage return and new-line from the end of a string in c#
...move the carriage return character (\r) and the new line character (\n) from the end of a string?
12 Answers
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Why is it slower to iterate over a small string than a small list?
...ter strings are cached.
The difference is unobvious, but is likely created from a greater number of checks on string indexing, with regards to the type and well-formedness. It is also quite likely thanks to the need to check what to return.
List indexing is remarkably fast.
>>> python...
How can I force division to be floating point? Division keeps rounding down to 0?
...n Python 3, it produces a float. We can get the new behaviour by importing from __future__.
>>> from __future__ import division
>>> a = 4
>>> b = 6
>>> c = a / b
>>> c
0.66666666666666663
...
Git: copy all files in a directory from another branch
How do I copy all files in a directory from another branch? I can list all of the files in that directory by doing
2 Answe...
Difference between /res and /assets directories
I know that files in the res directory are accessible from R.class while assets behaves like a file system, but I would like to know, in general, when it's best to use one and the other.
Can anyone help me in knowing the real differences between res and assets?
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How do I remove the old history from a git repository?
...
Quoted from the linked wiki page on grafts. "As of Git 1.6.5, the more flexible git replace has been added, which allows you to replace any object with any other object, and tracks the associations via refs which can be pushed and p...
reStructuredText tool support
...
Salvaging (and extending) the list from an old version of the Wikipedia page:
Documentation
Primer
Cheat Sheet
Quick Reference
Implementations
Although the reference implementation of reStructuredText is written in Python, there are reStructuredText pars...
Find region from within an EC2 instance
Is there a way to look up the region of an instance from within the instance?
28 Answers
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What's the difference between a single precision and double precision floating point operation?
..., cache, and bandwidth, thereby reducing the overall system performance.
From Webopedia:
The term double precision is something of a misnomer because the precision is not really double.
The word double derives from the fact that a double-precision number uses twice as many bits as a regular ...