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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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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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Flatten list of lists [duplicate]
I'm having a problem with square brackets in Python. I wrote a code that produces the following output:
4 Answers
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Hexadecimal To Decimal in Shell Script
...le 'print hex("FF");'
255
with printf :
$ printf "%d\n" 0xFF
255
with python:
$ python -c 'print(int("FF", 16))'
255
with ruby:
$ ruby -e 'p "FF".to_i(16)'
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with node.js:
$ nodejs <<< "console.log(parseInt('FF', 16))"
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with rhino:
$ rhino<<EOF
print(parseInt('FF',...
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:
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What can MATLAB do that R cannot do? [closed]
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In my experience moving from MATLAB to Python is an easier transition - Python with numpy/scipy is closer to MATLAB in terms of style and features than R. There are also open source direct MATLAB clones Octave and Scilab.
There is certainly much that MATLAB can d...
Highlight bash/shell code in markdown
..._US.twitter.txt
```
you can also use:
engine='sh' for shell
engine='python' for python
engine='perl', engine='haskell' and a bunch of other C-like languages and even gawk, awk etc.
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Count occurrences of a char in a string using Bash
...le we wanna count t
echo "test" | awk -v RS='t' 'END{print NR-1}'
or in python
python -c 'print "this is for test"
gunicorn autoreload on source change
...'echo "${watch_src_path}" && kill -HUP `cat gunicorn.pid`' . &
python manage.py run_gunicorn 127.0.0.1:80 --pid=gunicorn.pid
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