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Simple way to create matrix of random numbers
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13 Answers
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Add Variables to Tuple
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388
Tuples are immutable; you can't change which variables they contain after construction. Howeve...
How to make rounded percentages add up to 100%
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34
Since none of the answers here seem to solve it properly, here's my semi-obfuscated version usi...
Why do objects of the same class have access to each other's private data?
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edited Aug 3 '11 at 3:31
answered Aug 3 '11 at 3:26
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Best GUI designer for eclipse? [closed]
...are
edited Jun 10 '12 at 23:23
Andrew Marshall
87.3k1818 gold badges202202 silver badges204204 bronze badges
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pandas: How do I split text in a column into multiple rows?
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This splits the Seatblocks by space and gives each its own row.
In [43]: df
Out[43]:
CustNum CustomerName ItemQty Item Seatblocks ItemExt
0 32363 McCartney, Paul 3 F04 2:218:10:4,6 60
1 31316 Lennon, John 25 F01 1:13:36:1...
How to upgrade PowerShell version from 2.0 to 3.0
...t is installed here is 2.0. Is it possible for me to upgrade it to version 3.0 or 4.0?
7 Answers
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How do I exchange keys with values in a dictionary?
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Python 2:
res = dict((v,k) for k,v in a.iteritems())
Python 3 (thanks to @erik):
res = dict((v,k) for k,v in a.items())
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Rotating a two-dimensional array in Python
...ider the following two-dimensional list:
original = [[1, 2],
[3, 4]]
Lets break it down step by step:
>>> original[::-1] # elements of original are reversed
[[3, 4], [1, 2]]
This list is passed into zip() using argument unpacking, so the zip call ends up being the equiva...