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Algorithm to return all combinations of k elements from n
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May I present my recursive Python solution to this problem?
def choose_iter(elements, length):
for i in xrange(len(elements)):
if length == 1:
yield (elements[i],)
else:
for next in choose_iter(elements[i+1...
S3 - Access-Control-Allow-Origin Header
...rom alxrb answer) which seems to have worked for most of the people.
<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
<AllowedOrigin>*</AllowedOrigin>
<AllowedMethod>GET</...
Can't install PIL after Mac OS X 10.9
...'ve just updated my Mac OS to 10.9 and I discovered that some (all?) of my Python modules are not here anymore, especially the Image one.
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In Django, how does one filter a QuerySet with dynamic field lookups?
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Python's argument expansion may be used to solve this problem:
kwargs = {
'{0}__{1}'.format('name', 'startswith'): 'A',
'{0}__{1}'.format('name', 'endswith'): 'Z'
}
Person.objects.filter(**kwargs)
This is a very c...
How do I reformat HTML code using Sublime Text 2?
... @JonnyLeeds It kind of does, but not always correctly. For XML specifically, try Indent XML or IndentX among others.
– Joel Mellon
Feb 18 '15 at 1:47
add a com...
Force line-buffering of stdout when piping to tee
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For python script stdbuf will not work, but you can use -u to disable buffering on python's side: python3 -u a.py | tee output.txt
– Honza
Jan 2 at 13:56
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Code Golf: Collatz Conjecture
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Python - 95 64 51 46 char
Obviously does not produce a stack overflow.
n=input()
while n>1:n=(n/2,n*3+1)[n%2];print n
share
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Django South - table already exists
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Perform these steps in order may help you:
1) python manage.py schemamigration apps.appname --initial
Above step creates migration folder as default.
2) python manage.py migrate apps.appname --fake
generates a fake migration.
3) python manage.py schemamigration apps....
Create an Android Jar library for distribution
...ovide a special kind of Android-JAR. But what you can do is adding a build.xml to your project and build the JAR with ant.
My build.xml looks like this:
<project name="MyAndroidLib" default="dist" basedir=".">
<description>
This is my Android lib
</description>
<!-- set ...
How to stop flask application without using ctrl-c
...API, I am curious about how to code this. I am working on Ubuntu 12.10 and Python 2.7.3.
13 Answers
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