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Add column with number of days between dates in DataFrame pandas

...f['B'] Out[12]: one -58 days two -26 days dtype: timedelta64[ns] In [13]: df['C'] = df['A'] - df['B'] In [14]: df Out[14]: A B C one 2014-01-01 2014-02-28 -58 days two 2014-02-03 2014-03-01 -26 days Note: ensure you're using a new of pandas (e.g. 0.13.1), this ma...
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All permutations of a Windows license key

... | edited Feb 5 '13 at 23:39 Peter Mortensen 26.5k2121 gold badges9292 silver badges122122 bronze badges ...
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find filenames NOT ending in specific extensions on Unix?

... 352 Or without ( and the need to escape it: find . -not -name "*.exe" -not -name "*.dll" and to...
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Spring Boot not serving static content

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How can Perl's print add a newline by default?

... 36 You can use the -l option in the she-bang header: #!/usr/bin/perl -l $text = "hello"; print...
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Objective-C declared @property attributes (nonatomic, copy, strong, weak)

... bobobobo 55.2k5454 gold badges229229 silver badges329329 bronze badges answered Mar 25 '12 at 12:58 iDhavaliDhaval 7,82622 gold ...
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Is it possible to modify variable in python that is in outer, but not global, scope?

... Python 3.x has the nonlocal keyword. I think this does what you want, but I'm not sure if you are running python 2 or 3. The nonlocal statement causes the listed identifiers to refer to previously bound variables in the neare...
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test if event handler is bound to an element in jQuery [duplicate]

...| edited Oct 25 '18 at 7:13 gotqn 33.1k3737 gold badges140140 silver badges216216 bronze badges answered...
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Convert base-2 binary number string to int

... int('11111111', 2) 255 Here is documentation for python2, and for python3. share | improve this answer | follow | ...
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Is it possible to send an array with the Postman Chrome extension?

...cation/json in Headers tab. Here is example for raw data {"user_ids": ["123" "233"]}, don't forget the quotes! If you are using the postman REST client you have to use the method I described above because passing data as raw (json) won't work. There is a bug in the postman REST client (At least I...