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Postgresql aggregate array
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This post also helped me a lot: "Group By" in SQL and Python Pandas.
It basically says that it is more convenient to use only SQL when possible, but that Python Pandas can be useful to achieve extra functionalities in the filtering process.
I hope it helps
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Mail multipart/alternative vs multipart/mixed
... architecture (from Lain's answer) worked for me.
Here is the solution in Python.
mixed
alternative
text
related
html
inline image
inline image
attachment
attachment
Here is the main email creation function:
def create_message_with_attachment(
sender, to, subject, msgHtml, msgPl...
Hidden Features of JavaScript? [closed]
... considered false. a = 0 || 42; will give you 42. This is comparable with Python's or, not C#'s ?? operator. If you want the C# behavior, do a = (b === null) ? c : b;
– Armin Ronacher
Sep 21 '08 at 22:18
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How to find all combinations of coins when given some dollar value
...al from the current denomination on down. Return this number.
Here's my python version of your stated problem, for 200 cents. I get 1463 ways. This version prints all the combinations and the final count total.
#!/usr/bin/python
# find the number of ways to reach a total with the given number...
Get the subdomain from a URL
...p-domain-parser
C# / .NET: https://github.com/danesparza/domainname-parser
Python: http://pypi.python.org/pypi/publicsuffix
Ruby: domainatrix, public_suffix
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from list of integers, get number closest to a given value
...o methods and supply both with a sorted myList, these are the results:
$ python -m timeit -s "
from closest import take_closest
from random import randint
a = range(-1000, 1000, 10)" "take_closest(a, randint(-1100, 1100))"
100000 loops, best of 3: 2.22 usec per loop
$ python -m timeit -s "
from ...
pandas three-way joining multiple dataframes on columns
...ber of dataframes you want to merge.
Edit August 1, 2016: For those using Python 3: reduce has been moved into functools. So to use this function, you'll first need to import that module:
from functools import reduce
shar...
Disable IPython Exit Confirmation
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If you also want Ctrl-D to exit without confirmation, in IPython 0.11, add c.TerminalInteractiveShell.confirm_exit = False to your config file *.
If you don't have a config file yet, run ipython profile create to create one.
Note this ticket if you're working within the Django she...
Numpy where function multiple conditions
...ccepted answer explained the problem well enough. However, the the more Numpythonic approach for applying multiple conditions is to use numpy logical functions. In this ase you can use np.logical_and:
np.where(np.logical_and(np.greater_equal(dists,r),np.greater_equal(dists,r + dr)))
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Render HTML to an image
...wkhtmltopdf tool)
IMGKit (for ruby and based on wkhtmltoimage)
imgkit (for python and based on wkhtmltoimage)
python-webkit2png
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Pros
Conversion is quite fast most of the time
Cons
Bad rendering
Does not execute javascript
No support for recent web features (FlexBox, Advanced Selectors, W...