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Running bash script from within python
...cify the full path to it e.g., if it is in the current working directory:
from subprocess import call
rc = call("./sleep.sh")
If the script has no shebang then you need to specify shell=True:
rc = call("./sleep.sh", shell=True)
If the script has no executable permissions and you can't change ...
A better similarity ranking algorithm for variable length strings
... version of the algorithm and below I wrote a PL/Ruby version of it (taken from the plain ruby version done in the related forum entry comment by Mark Wong-VanHaren) so that I can use it in my PostgreSQL queries:
CREATE FUNCTION string_similarity(str1 varchar, str2 varchar)
RETURNS float8 AS '
str...
Learning Regular Expressions [closed]
...egular expressions! (The re in grep refers to regular expressions.)
Order from the menu
Adding just a little complexity, you can match either 'Nick' or 'nick' with the pattern [Nn]ick. The part in square brackets is a character class, which means it matches exactly one of the enclosed characters. ...
How do I erase an element from std::vector by index?
...ents:
vector.erase( vector.begin() + 3, vector.begin() + 5 ); // Deleting from fourth element to sixth element
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Call Javascript function from URL/address bar
Is it possible to call a javascript function from the URL? I am basically trying to leverage JS methods in a page I don't have access to the source.
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...n they're not as fast :)
Options
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 & 0x33333333) << 2));
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Parsing command-line arguments in C?
...parse command line arguments in C are:
Getopt (#include <unistd.h> from the POSIX C Library), which can solve simple argument parsing tasks. If you're a bit familiar with bash, the getopt built-in of bash is based on Getopt from the GNU libc.
Argp (#include <argp.h> from the GNU C Libr...
How to read a line from the console in C?
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Note that this getline() is different from the POSIX standard getline() function.
– Jonathan Leffler
Apr 12 '17 at 5:42
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Send file using POST from a Python script
Is there a way to send a file using POST from a Python script?
8 Answers
8
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Return two and more values from a method
Is there any possibility to return multiple values from method? Something like this:
4 Answers
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