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Should I use multiplication or division?
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Thanks for the tip on using the time command for benchmarking!
– Edmundito
Oct 22 '08 at 17:11
2
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Is JavaScript a pass-by-reference or pass-by-value language?
...er that a variable holding an object is in fact a reference to the object) and passed-by-reference (when we consider that the variable to the object holds the object itself).
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How to delete files older than X hours
...all files with my find. My fault for not checking this first, but this command just deleted most of my home directory. For me, --mmin -X is the correct argument.
– brandones
Oct 16 '13 at 0:08
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Is there a builtin identity function in python?
...ng some more research, there is none, a feature was asked in issue 1673203 And from Raymond Hettinger said there won't be:
Better to let people write their own trivial pass-throughs
and think about the signature and time costs.
So a better way to do it is actually (a lambda avoids naming the...
How to replace a hash key with another key
...akes some time to tell what it is really doing. Your solution is in other hand simple and descriptive.
– Lucas
Nov 13 '14 at 18:55
3
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How can I autoformat/indent C code in vim?
...eystrokes:
gg=G
Explanation: gg goes to the top of the file, = is a command to fix the indentation and G tells it to perform the operation to the end of the file.
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Python list of dictionaries search
...icts if item["name"] == "Pam")
{'age': 7, 'name': 'Pam'}
If you need to handle the item not being there, then you can do what user Matt suggested in his comment and provide a default using a slightly different API:
next((item for item in dicts if item["name"] == "Pam"), None)
And to find the in...
Scala Doubles, and Precision
...likely, I'd say. Anything involving grids or finance can require rounding and also performance.
– Rex Kerr
Jun 19 '12 at 20:33
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What is the fastest or most elegant way to compute a set difference using Javascript arrays?
Let A and B be two sets. I'm looking for really fast or elegant ways to compute the set difference ( A - B or A \B , depending on your preference) between them. The two sets are stored and manipulated as Javascript arrays, as the title says.
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Read Excel File in Python
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A somewhat late answer, but with pandas it is possible to get directly a column of an excel file:
import pandas
import xlrd
df = pandas.read_excel('sample.xls')
#print the column names
print df.columns
#get the values for a given column
values = df['Arm_id']...