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How do I get python's pprint to return a string instead of printing?
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Bryan Oakley
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answered Feb 6 '09 at 18:28
SilentGhostSilentGhost
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Extract elements of list at odd positions
...cond at 1 etc.):
1, 3, 5
so the result (actual numbers) will be:
2, 4, 6
Explanation
The [1::2] at the end is just a notation for list slicing. Usually it is in the following form:
some_list[start:stop:step]
If we omitted start, the default (0) would be used. So the first element (at posit...
Converting String array to java.util.List
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6 Answers
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Selecting with complex criteria from pandas.DataFrame
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406
Sure! Setup:
>>> import pandas as pd
>>> from random import randint
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SQL function as default parameter value?
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6 Answers
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Why does sed not replace all occurrences?
...is global flag is explained here: http://www.grymoire.com/Unix/Sed.html#uh-6
The official documentation for GNU sed is available at http://www.gnu.org/software/sed/manual/
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What is the difference between `git fetch origin` and `git remote update origin`?
...hat fetch and remote update didn't actually use the same codepath until v1.6.6.1 (released December 23 2009). Even before that, though, they did essentially the same thing, just using different code (possibly behaving slightly differently in corner cases, but I can't think of any off the top of my h...
Why does 2 mod 4 = 2?
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JarsenJarsen
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add a comm...
How to group dataframe rows into list in pandas groupby?
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In [1]: df = pd.DataFrame( {'a':['A','A','B','B','B','C'], 'b':[1,2,5,5,4,6]})
df
Out[1]:
a b
0 A 1
1 A 2
2 B 5
3 B 5
4 B 4
5 C 6
In [2]: df.groupby('a')['b'].apply(list)
Out[2]:
a
A [1, 2]
B [5, 5, 4]
C [6]
Name: b, dtype: object
In [3]: df1 = df.grou...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
...the imagemagick directory.
After reading
https://superuser.com/questions/361435/i-have-compiled-imagemagick-on-my-centos-and-rmagick-wont-install
I exported the imagemagick path by adding
$ export PKG_CONFIG_PATH="/opt/local/lib/pkgconfig:$PKG_CONFIG_PATH"
to my ~/.bash_profile, sourcing the new...