python
apply proxy settings to python requests
you can apply proxy settings to python requests like this:
python
reading yaml files in python
instlal PyYAML in python file, load file like the following the data in yaml file will be saved in data variable as a python dict.
python
python encode string to percent encoded(urlencode) format
reference: https://www.urlencoder.io/python/
python
matplotlib draw heatmap figure with colorbar
here is the sample code for drawing a single axis in a figure. The above is the result. I have tried to create several subplots and add heatmap to each one with individual colorbars on its side, but it seems this is hard to implement.
python
None index in python list?
while looking through some deep learning implementation code, I found some strange list indexing in python code. Here is an example. It was using None as an index when indexing a python object. First I thought is this indexing None on a python list and tested it. But it gave Read more…
python
various properties of cairo `text_extent`
when using cairo with python, the text_extent function call is powerful because it returns coordinate information of the text the user wants to print. However, the information depends on the Context which will be used when calling this function and this context may have different properties. Effected by order of Read more…
python
python operator precedence
https://docs.python.org/3/reference/expressions.html#operator-precedence
error fix
allowing utf8 characters in python csv writer
reference: https://stackoverflow.com/questions/46551955/python-3-csv-utf-8-encoding do this at the start of csv writer to ad BOM
algorithm
python implementation of rotating caliper algorithm
Rotating caliper algorithm is used to find a rectangle that fits a convex hull. Below is a python implementation that finds all rotated rectangles for a given convex hull points. It is up to the user to select which rectangle to use since it returns all possible rotating caliper rectangles. Read more…
error fix
error fix: “OpenBLAS blas_thread_init: pthread_create failed for thread 27 of 36: Resource temporarily unavailable”
Problem When I tried to run a python script using numpy, it gave the following error. Solution found a solution from here from the shell, execute the following