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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...e (just don't look at me when they're not as fast :)
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Low Memory (32-bit int, 32-bit machine)(from here):
unsigned int
reverse(register unsigned int x)
{
x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1));
x = (((x & 0xcccccccc) >> 2) | ((x & ...
Add a new element to an array without specifying the index in Bash
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edited Dec 23 '09 at 9:18
answered Dec 23 '09 at 9:02
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What's the difference between `raw_input()` and `input()` in Python 3?
What is the difference between raw_input() and input() in Python 3?
6 Answers
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No module named _sqlite3
...ect this problem with the steps below:
Install sqlite-devel (or libsqlite3-dev on some Debian-based systems)
Re-configure and re-compiled Python with ./configure --enable-loadable-sqlite-extensions && make && sudo make install
Note
The sudo make install part will set that pyth...
Use of *args and **kwargs [duplicate]
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The syntax is the * and **. The names *args and **kwargs are only by convention but there's no ...
How can I remove a specific item from an array?
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Numpy index slice without losing dimension information
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edited Nov 23 '17 at 5:53
Atcold
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Upgrade python in a virtualenv
... you may have some problems if you change from python 2.6 to 2.7 or 2.7 to 3.x but if you just upgrade inside the same version (staying at 2.7 as you want) you shouldn't have any problem, as all the packages are held in the same folders for both python versions (2.7.x and 2.7.y packages are inside y...
Python 2.7: Print to File
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If you want to use the print function in Python 2, you have to import from __future__:
from __...
How can I get a list of locally installed Python modules?
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30 Answers
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