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How to determine the longest increasing subsequence using dynamic programming?
...p for me, but it was hard for me to parse what everything was, so I made a Python implementation with overly-descriptive variable names and lots of comments. I did a naive recursive solution, the O(n^2) solution, and the O(n log n) solution.
I hope it helps clear up the algorithms!
The Recursive ...
Unittest setUp/tearDown for several tests
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For python 2.5, and when working with pydev, it's a bit hard. It appears that pydev doesn't use the test suite, but finds all individual test cases and runs them all separately.
My solution for this was using a class variable li...
How many bits or bytes are there in a character? [closed]
..._t), not only Asian ones, and so should do all the newer applications. (On Linux, instead, it's a completely different story since usually UTF-8 is used throughout the whole system)
– Matteo Italia
Jan 31 '11 at 11:31
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How do I get user IP address in django?
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You can use django-ipware which supports Python 2 & 3 and handles IPv4 & IPv6.
Install:
pip install django-ipware
Simple Usage:
# In a view or a middleware where the `request` object is available
from ipware import get_client_ip
ip, is_routable = get_c...
What is “Linting”?
...uality). They are available for most languages like JavaScript, CSS, HTML, Python, etc..
Some of the useful linters are JSLint, CSSLint, JSHint, Pylint
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Length of generator output [duplicate]
Python provides a nice method for getting length of an eager iterable, len(x) that is. But I couldn't find anything similar for lazy iterables represented by generator comprehensions and functions. Of course, it is not hard to write something like:
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Is there a naming convention for Django apps
... Underscores can be used
in the module name if it improves readability. Python packages should
also have short, all-lowercase names, although the use of underscores is
discouraged.
So, 1 and 3 are both valid, but 3 would be the recommended approach.
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What GRANT USAGE ON SCHEMA exactly do?
...CREATE EXTENSION. It's more or less the same problem with files created on Linux while you're su. It will be good if there's a sort of sudo -e for statements in pqsl.
– Marco Sulla
Jun 28 '13 at 8:04
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What programming practice that you once liked have you since changed your mind about? [closed]
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What about in dynamically-typed languages, such as Python or JavaScript? I still find it helpful to use Hungarian notation in these languages so that, when looking at variables, I know what type of variable to expect (if there is a type to expect - of course, it would be fool...
What rules does Pandas use to generate a view vs a copy?
...as this is faster and will always work
The chained indexing is 2 separate python operations and thus cannot be reliably intercepted by pandas (you will oftentimes get a SettingWithCopyWarning, but that is not 100% detectable either). The dev docs, which you pointed, offer a much more full explanati...