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How to get the nth occurrence in a string?

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Test if string is a number in Ruby on Rails

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using awk with column value conditions

... 132 If you're looking for a particular string, put quotes around it: awk '$1 == "findtext" {print...
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Python - List of unique dictionaries

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How do you clear a slice in Go?

... 123 It all depends on what is your definition of 'clear'. One of the valid ones certainly is: sli...
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Changing column names of a data frame

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“static const” vs “#define” vs “enum”

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Why does multiprocessing use only a single core after I import numpy?

... 150 After some more googling I found the answer here. It turns out that certain Python modules (n...
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Import pandas dataframe column as string not int

... 154 Just want to reiterate this will work in pandas >= 0.9.1: In [2]: read_csv('sample.csv', d...