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How do I read CSV data into a record array in NumPy?
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edited Mar 2 '12 at 15:05
Mike Graham
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Pandas convert dataframe to array of tuples
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211
How about:
subset = data_set[['data_date', 'data_1', 'data_2']]
tuples = [tuple(x) for x in s...
Sort Dictionary by keys
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172
let dictionary = [
"A" : [1, 2],
"Z" : [3, 4],
"D" : [5, 6]
]
let sortedKeys = Arra...
Identifying the dependency relationship for python packages installed with pip
...dencies as a tree structure e.g.:
$ pipdeptree
Lookupy==0.1
wsgiref==0.1.2
argparse==1.2.1
psycopg2==2.5.2
Flask-Script==0.6.6
- Flask [installed: 0.10.1]
- Werkzeug [required: >=0.7, installed: 0.9.4]
- Jinja2 [required: >=2.4, installed: 2.7.2]
- MarkupSafe [installed: 0.18...
How to check a string for specific characters?
...can I check if a string has several specific characters in it using Python 2?
5 Answers
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“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
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I'm gonna guess that you are running python 2.6 by accident somehow.
This feature is only available for at least 3.1 if you are using python 3, or 2.7 if you are using python 2.
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Returning value from called function in a shell script
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282
A Bash function can't return a string directly like you want it to. You can do three things:
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Pandas dataframe get first row of each group
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248
>>> df.groupby('id').first()
value
id
1 first
2 first
3 first
4...
Set selected option of select box
...code into a $(document).ready:
$(function() {
$("#gate").val('gateway_2');
});
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Rotating videos with FFmpeg
... pass:
0 = 90CounterCLockwise and Vertical Flip (default)
1 = 90Clockwise
2 = 90CounterClockwise
3 = 90Clockwise and Vertical Flip
Use -vf "transpose=2,transpose=2" for 180 degrees.
Make sure you use a recent ffmpeg version from here (a static build will work fine).
Note that this will re-encod...