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Combine two columns of text in pandas dataframe
I have a 20 x 4000 dataframe in Python using pandas. Two of these columns are named Year and quarter . I'd like to create a variable called period that makes Year = 2000 and quarter= q2 into 2000q2 .
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How to execute an external program from within Node.js?
...execute an external program from within node.js? Is there an equivalent to Python's os.system() or any library that adds this functionality?
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Is Redis just a cache?
...Sentinel and automatic partitioning with Redis Cluster.
implementaion with python
https://beyondexperiment.com/vijayravichandran06/redis-data-structure-with-python/
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How do I manipulate a variable whose name conflicts with PDB commands?
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Use an exclamation mark ! before a statement to have it run :
python -m pdb test.py
> /home/user/test.py(1)<module>()
-> print('foo')
(Pdb) !n = 77
(Pdb) !n
77
(Pdb) n
foo
> /home/user/test.py(2)<module>()
-> print('bar')
(Pdb)
The docs say:
! statement
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Unittest setUp/tearDown for several tests
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For python 2.5, and when working with pydev, it's a bit hard. It appears that pydev doesn't use the test suite, but finds all individual test cases and runs them all separately.
My solution for this was using a class variable li...
How to keep the console window open in Visual C++?
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Alternatively, you could just include some Python code in your SCons script to do it yourself each time a project file is generated. I believe VS project files conform to the XML standard, so it should be fairly easy to add the missing elements, and should only requir...
How do I get user IP address in django?
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You can use django-ipware which supports Python 2 & 3 and handles IPv4 & IPv6.
Install:
pip install django-ipware
Simple Usage:
# In a view or a middleware where the `request` object is available
from ipware import get_client_ip
ip, is_routable = get_c...
What is “Linting”?
...uality). They are available for most languages like JavaScript, CSS, HTML, Python, etc..
Some of the useful linters are JSLint, CSSLint, JSHint, Pylint
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Length of generator output [duplicate]
Python provides a nice method for getting length of an eager iterable, len(x) that is. But I couldn't find anything similar for lazy iterables represented by generator comprehensions and functions. Of course, it is not hard to write something like:
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Is there a naming convention for Django apps
... Underscores can be used
in the module name if it improves readability. Python packages should
also have short, all-lowercase names, although the use of underscores is
discouraged.
So, 1 and 3 are both valid, but 3 would be the recommended approach.
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