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django test app error - Got an error creating the test database: permission denied to create databas
...RIVILEGES ON myproject_test.* TO 'chandan'@'localhost';
Now you can run python manage.py test polls.
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How to iterate over rows in a DataFrame in Pandas
...apply(): i) Reductions that can be performed in Cython, ii) Iteration in Python space
DataFrame.itertuples() and iteritems()
DataFrame.iterrows()
iterrows and itertuples (both receiving many votes in answers to this question) should be used in very rare circumstances, such as generating row objec...
NameError: name 'self' is not defined
...k fine), the above actually works as a workaround. It's still awkward that python chose to make self unavailable in a parameter list.
– shevy
Jan 2 '18 at 11:30
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Making heatmap from pandas DataFrame
I have a dataframe generated from Python's Pandas package. How can I generate heatmap using DataFrame from pandas package.
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How to overcome “datetime.datetime not JSON serializable”?
...elds were represented as:
{"$date": 1506816000000}
If you want a generic Python solution for serializing datetime to json, check out @jjmontes' answer for a quick solution which requires no dependencies.
As you are using mongoengine (per comments) and pymongo is a dependency, pymongo has built-...
Get selected subcommand with argparse
When I use subcommands with python argparse, I can get the selected arguments.
2 Answers
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How do I check if there are duplicates in a flat list?
...en check its length. Its advantage is that it's letting the C code inside Python do the heavy lifting. Your solution loops in Python code, but has the advantage of short-circuiting when a single match has been found. If the odds are that the list probably has no duplicates, I like Denis Otkidach'...
How can you program if you're blind?
...or about 13 years on Windows, Mac, Linux and DOS, in languages from C/C++, Python, Java, C# and various smaller languages along the way. Though the original question was around configuring the environment, I think it's best answered by looking at how a blind person would use a computer.
Some people...
How to work with complex numbers in C?
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FYI, since the OP mentions Python bindings, when working with Python I try to stick to C89 (since the rest of Python's code is C89, and if you want your extension to run on Windows, it's usually compiled with MVSC, which is limited to C89). I don't kno...
How do I catch a numpy warning like it's an exception (not just for testing)?
I have to make a Lagrange polynomial in Python for a project I'm doing. I'm doing a barycentric style one to avoid using an explicit for-loop as opposed to a Newton's divided difference style one. The problem I have is that I need to catch a division by zero, but Python (or maybe numpy) just makes i...