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Parse date string and change format
I have a date string with the format 'Mon Feb 15 2010'. I want to change the format to '15/02/2010'. How can I do this?
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leading zeros in rails
...ed with padstr; otherwise, returns str.
some_int = 5
some_int.to_s.rjust(2, '0') # => '05'
some_int.to_s.rjust(5, '0') # => '00005'
another_int = 150
another_int.to_s.rjust(2, '0') # => '150'
another_int.to_s.rjust(3, '0') # => '150'
another_int.to_s.rjust(5, '0') # => '00150'
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What is the rationale for all comparisons returning false for IEEE754 NaN values?
...wever, there is a similar property that does hold. Clause 5.11, paragraph 2 of the 754-2008 standard:
Four mutually exclusive relations are possible: less than, equal, greater than, and unordered. The last case arises when at least one operand is NaN. Every NaN shall compare unordered with ever...
Does Python have a ternary conditional operator?
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26 Answers
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PostgreSQL: Difference between text and varchar (character varying)
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792
There is no difference, under the hood it's all varlena (variable length array).
Check this art...
How to re-raise an exception in nested try/except blocks?
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132
As of Python 3 the traceback is stored in the exception, so a simple raise e will do the (mostly...
Removing elements by class name?
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edited Apr 6 '19 at 14:32
answered Jan 23 '11 at 22:52
Li...
Add list to set?
Tested on Python 2.6 interpreter:
12 Answers
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Configure Microsoft.AspNet.Identity to allow email address as username
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Dump a NumPy array into a csv file
Is there a way to dump a NumPy array into a CSV file? I have a 2D NumPy array and need to dump it in human-readable format.
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