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How to extract the n-th elements from a list of tuples?
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edited Mar 6 '19 at 20:33
cs95
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Python data structure sort list alphabetically
...ut[12]: ['constitute', 'Whim', 'Stem', 'Sedge', 'Intrigue', 'Eflux']
In [13]: sorted(lst, key=str.lower, reverse=True)
Out[13]: ['Whim', 'Stem', 'Sedge', 'Intrigue', 'Eflux', 'constitute']
Please note: If you work with Python 3, then str is the correct data type for every string that contains hum...
nonlocal keyword in Python 2.x
...turn d['y']
return inner
f = outer()
print(f(), f(), f()) #prints 1 2 3
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How to add a new row to an empty numpy array
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237
The way to "start" the array that you want is:
arr = np.empty((0,3), int)
Which is an empty ...
Efficient way to apply multiple filters to pandas DataFrame or Series
...'col1'] >= 1]
Out[12]:
col1 col2
1 1 11
2 2 12
In [13]: df[(df['col1'] >= 1) & (df['col1'] <=1 )]
Out[13]:
col1 col2
1 1 11
If you want to write helper functions for this, consider something along these lines:
In [14]: def b(x, col, op, n):
...
Getting list of parameter names inside python function [duplicate]
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333
Well we don't actually need inspect here.
>>> func = lambda x, y: (x, y)
>>>...
PHP cURL not working - WAMP on Windows 7 64 bit
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309
Go to http://www.anindya.com/php-5-4-3-and-php-5-3-13-x64-64-bit-for-windows/ and download the...
No module named MySQLdb
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653
You need to use one of the following commands. Which one depends on what OS and software you hav...
How to escape braces (curly brackets) in a format string in .NET
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For you to output foo {1, 2, 3} you have to do something like:
string t = "1, 2, 3";
string v = String.Format(" foo {{{0}}}", t);
To output a { you use {{ and to output a } you use }}.
or Now, you can also use c# string interpolation like this (featu...
How to write loop in a Makefile?
...by your use of ./a.out, you're on a UNIX-type platform.
for number in 1 2 3 4 ; do \
./a.out $$number ; \
done
Test as follows:
target:
for number in 1 2 3 4 ; do \
echo $$number ; \
done
produces:
1
2
3
4
For bigger ranges, use:
target:
number=1 ; while [[ $$number...