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How to get numbers after decimal point?
...odulo division approach in multiple languages, whereas the above answer is Python-specific.
– Stew
Feb 3 '15 at 20:17
3
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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...
How to form tuple column from two columns in Pandas
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in python3, you have to use list. This should work: df['new_col'] = list(zip(df.lat, df.long))
– paulwasit
Nov 2 '16 at 8:06
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How to open a specific port such as 9090 in Google Compute Engine
... VPC Networking.
The second thing is, if you're trying to open ports on a Linux VM, make sure under no circumstances should you try to open port using ufw command. I tried using that and lost ssh access to the VM. So don't repeat my mistake.
The third thing is, if you're trying to open ports on ...
Can I force pip to reinstall the current version?
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--force-reinstall
doesn't appear to force reinstall using python2.7 with pip-1.5
I've had to use
--no-deps --ignore-installed
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Reading JSON from a file?
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In python 3, we can use below method.
Read from file and convert to JSON
import json
from pprint import pprint
# Considering "json_list.json" is a json file
with open('json_list.json') as fd:
json_data = json.load(fd)
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Measuring execution time of a function in C++
...ut how much time a certain function takes in my C++ program to execute on Linux . Afterwards, I want to make a speed comparison . I saw several time function but ended up with this from boost. Chrono:
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What are the most-used vim commands/keypresses?
... MacVim, on Mac OS is very nice. I tend to compile vim from source on most Linux boxes I use, simply because most distros are not current, or don't have the language support set right. I keep a current version of my ~/.vimrc, ~/.gvimrc and ~/.vim directory in a tar-ball for when I have to set someth...
C++ performance vs. Java/C#
...e used std::find for Christ's sake). If there's something good about Java, Python, C#, etc. - they all provide very efficient dictionaries...
– stinky472
Feb 28 '12 at 18:26
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How can I save an image with PIL?
I have just done some image processing using the Python image library (PIL) using a post I found earlier to perform fourier transforms of images and I can't get the save function to work. The whole code works fine but it just wont save the resulting image:
...