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With arrays, why is it the case that a[5] == 5[a]?
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17 Answers
17
Active
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How can I do DNS lookups in Python, including referring to /etc/hosts?
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118
I'm not really sure if you want to do DNS lookups yourself or if you just want a host's ip. In...
Properties order in Margin
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418
Margin="1,2,3,4"
Left,
Top,
Right,
Bottom
It is also possible to specify just two sizes ...
how does multiplication differ for NumPy Matrix vs Array classes?
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127
The main reason to avoid using the matrix class is that a) it's inherently 2-dimensional, and ...
How to get the last N rows of a pandas DataFrame?
I have pandas dataframe df1 and df2 (df1 is vanila dataframe, df2 is indexed by 'STK_ID' & 'RPT_Date') :
3 Answers
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comparing 2 strings alphabetically for sorting purposes
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124
Lets look at some test cases - try running the following expressions in your JS console:
"a" ...
How to see which flags -march=native will activate?
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152
You can use the -Q --help=target options:
gcc -march=native -Q --help=target ...
The -v opt...
Nested JSON objects - do I have to use arrays for everything?
... JSON like this:
{
"stuff": {
"onetype": [
{"id":1,"name":"John Doe"},
{"id":2,"name":"Don Joeh"}
],
"othertype": {"id":2,"company":"ACME"}
},
"otherstuff": {
"thing": [[1,42],[2,2]]
}
}
You can use it like this:
obj.stuf...
How to compare two dates?
...rt datetime, timedelta
>>> past = datetime.now() - timedelta(days=1)
>>> present = datetime.now()
>>> past < present
True
>>> datetime(3000, 1, 1) < present
False
>>> present - datetime(2000, 4, 4)
datetime.timedelta(4242, 75703, 762105)
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Python's “in” set operator
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101
Yes, but it also means hash(b) == hash(x), so equality of the items isn't enough to make them ...