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How to install PostgreSQL's pg gem on Ubuntu?
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19 Answers
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Changing a specific column name in pandas DataFrame
...ns = {'two':'new_name'})
In [28]: df
Out[28]:
one three new_name
0 1 a 9
1 2 b 8
2 3 c 7
3 4 d 6
4 5 e 5
Following is the docstring for the rename method.
Definition: df.rename(self, index=None, columns=None, copy=Tr...
In javascript, is an empty string always false as a boolean?
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Yes. Javascript is a dialect of ECMAScript, and ECMAScript language specification clearly defi...
Fundamental difference between Hashing and Encryption algorithms
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How to customize the background/border colors of a grouped table view cell?
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Windows API Code Pack: Where is it? [closed]
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edited Jul 7 '14 at 4:29
answered Jun 26 '14 at 1:10
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Checking for empty arrays: count vs empty
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How do I loop through a list by twos? [duplicate]
...u can use for in range with a step size of 2:
Python 2
for i in xrange(0,10,2):
print(i)
Python 3
for i in range(0,10,2):
print(i)
Note: Use xrange in Python 2 instead of range because it is more efficient as it generates an iterable object, and not the whole list.
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