Getting data from ctypes array into numpy
I am using a Python (via ctypes) wrapped C library to run a series of computation. At different stages of the running, I want to get data into Python, and specifically numpy arrays.
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Quickest way to make a get_dummies type dataframe from a column with a multiple of strings
I have a column, ‘col2’, that has a list of strings. The current code I have is too slow, there’s about 2000 unique strings (the letters in the example below), and 4000 rows. Ending up as 2000 columns and 4000 rows.
How do I read two lines from a file at a time using python
I am coding a python script that parses a text file. The format of this text file is such that each element in the file uses two lines and for convenience I would like to read both lines before parsing. Can this be done in Python?
How do I restrict foreign keys choices to related objects only in django
I have a two way foreign relation similar to the following
Is there a difference between using a dict literal and a dict constructor?
Using PyCharm, I noticed it offers to convert a dict literal:
How to flatten a pandas dataframe with some columns as json?
I have a dataframe df that loads data from a database. Most of the columns are json strings while some are even list of jsons. For example:
Python: How to ignore an exception and proceed?
I have a try…except block in my code and When an exception is throw. I really just want to continue with the code because in that case, everything is still able to run just fine. The problem is if you leave the except: block empty or with a #do nothing, it gives you a syntax … Read more
Python: Can’t pickle type X, attribute lookup failed
I am trying to pickle a namedtuple:
groupby weighted average and sum in pandas dataframe
I have a dataframe:
ipython notebook clear cell output in code
In a iPython notebook, I have a while loop that listens to a Serial port and print the received data in real time.