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Truncate all tables in a MySQL database in one command?
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27 Answers
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How can I open Windows Explorer to a certain directory from within a WPF app?
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answered Nov 17 '09 at 2:01
Jamie PenneyJamie Penney
8,38833 gold badges2626 silver badges3737 bronze badges
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What is a pre-revprop-change hook in SVN, and how do I create it?
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Basically it's a script that is launched before unversioned property is modified on the reposito...
How to change the font size on a matplotlib plot
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12 Answers
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How do I execute a string containing Python code in Python?
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For statements, use exec(string) (Python 2/3) or exec string (Python 2):
>>> mycode = 'print "hello world"'
>>> exec(mycode)
Hello world
When you need the value of an expression, use eval(string):
>>> x = eval("2+2")
>>> x
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Pandas selecting by label sometimes return Series, sometimes returns DataFrame
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Granted that the behavior is inconsistent, but I think it's easy to imagine cases where this is ...
Simple Pivot Table to Count Unique Values
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Insert a 3rd column and in Cell C2 paste this formula
=IF(SUMPRODUCT(($A$2:$A2=A2)*($B$2:$B2=B2))>1,0,1)
and copy it down. Now create your pivot based on 1st and 3rd column. See snapshot
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