I’m trying to write a pandas dataframe as a pickle file into an s3 bucket in AWS. I know that I can write dataframe new_df as a csv to an s3 bucket as follows: I’ve tried using the same code as above with to_pickle() but with no success. Answer I’ve found the solution, need to call BytesIO i…
Sign a byte string with SHA256 in Python
Currently I have some code that signs a byte string with the SHA256 algorithm using the native OpenSSL binary, the code calls an external process, sends the parameters, and receive the result back into the Python code. The current code is as follows: When original_string is too big, I might have problems with…
For loop in Python make issue [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago. Improve this question so earlier I am learning c/c++ and use for loops intensively but now I am …
Strange behaviour when task added to empty loop in different thread
I have an app which adds coroutines to an already-running event loop. The arguments for these coroutines depend on I/O and are not available when I initially start the event loop – with loop.run_forever(), so I add the tasks later. To demonstrate the phenomenon, here is some example code: The strange be…
Error creating anaconda python environment
Every time I try to create a new environment with anaconda in the Windows Command Prompt I get this error: I use this command to create the environment: Screenshot of error in command prompt Answer You are supposed to use a terminal not the Python interpreter to execute those commands. Search for terminal in …
How to set logging level in twisted?
I am using autobahn package with twisted which shows debug message for me every connect to websocket. I tried to switch logging level to info but had no success: Is there an easy way to switch log level? Updated. Here is the twisted_service.py: I run it using twistd script: twistd -noy twisted_service.py And …
Web scraping python (beautifull soup) multiple page and subpage
I create my soup with : I’m trying to create a dataframe from web scraping this site “https://myanimelist.net” et and i would like to get in a first step anime title, eps, type and secondly in detail of each anime (page like that : https://myanimelist.net/anime/2928/hack__GU_Returner) i woul…
Pytorch softmax: What dimension to use?
The function torch.nn.functional.softmax takes two parameters: input and dim. According to its documentation, the softmax operation is applied to all slices of input along the specified dim, and will rescale them so that the elements lie in the range (0, 1) and sum to 1. Let input be: Suppose I want the follo…
How to prevent pip from replacing numpy+mkl with just numpy when installing packages that require numpy?
When I pip install (or pip install –upgrade) packages that require numpy, they have a tendency to uninstall my existing numpy+mkl (which has a high enough version to satisfy the numpy version requirement). Afterwards, they install numpy without +mkl, which causes problems for other packages that do requ…
OpenCV Composting 2 images of differing size
I need to alpha-blend 2 images that are not the same size. I’ve managed to get them to composite by resizing to the same size, so I’ve got part of the logic: I’m wondering if I need to make a mask that is the same size as the larger image and then use that with my first image. If so,