I have set up a simple linear regression problem in Tensorflow, and have created simple conda environments using Tensorflow CPU and GPU both in 1.13.1 (using CUDA 10.0 in the backend on an NVIDIA Quadro P600). However, it looks like the GPU environment always takes longer time than the CPU environment. The co…
Tag: python
Macro VS Micro VS Weighted VS Samples F1 Score
In sklearn.metrics.f1_score, the f1 score has a parameter called “average”. What does macro, micro, weighted, and samples mean? Please elaborate, because in the documentation, it was not explained properly. Or simply answer the following: Why is “samples” best parameter for multilabel …
PyOpenGL – Minimal glDrawArrays Example
I’ve seen many minimal PyOpenGL examples, but none of the ones I’ve found make use of VAOs or glDrawArrays / glDrawElements. Instead they all use glVertex, glut shapes, and occasionally the old glCallList function. I’m now trying to write a minimal working example that uses vertex arrays and…
Python produces: OSError: [WinError 193] %1 is not a valid Win32 application, but only with activate_this.py
This is presumably the same as Python produces: OSError: [WinError 193] %1 is not a valid Win32 application However, that has no answers, and I have additional details for my situation. Background: I’m using a venv, it gets activated internally with activate_this.py via: This worked on python2 at least&…
Does loc/iloc return a reference or a copy?
I am experiencing some problems while using .loc / .iloc as part of a loop. This is a simplified version of my code: basically: I initialize a dataframe with index and columns I populate each row of the dataframe with a for loop I find the index “i_max” finding the maximum value in column ‘A…
How downsample work in ResNet in pytorch code?
In this pytorch ResNet code example they define downsample as variable in line 44. and line 58 use it as function. How this downsample work here as CNN point of view and as python Code point of view. code example : pytorch ResNet i searched for if downsample is any pytorch inbuilt function. but it is not. Ans…
How to timeout an async test in pytest with fixture?
I am testing an async function that might get deadlocked. I tried to add a fixture to limit the function to only run for 5 seconds before raising a failure, but it hasn’t worked so far. Setup: Code: — Edit: Mikhail’s solution works fine. I can’t find a way to incorporate it into a fixt…
Python PyQt5 QTreeView set row Background Colour
I am trying to set the background colour (color) for a) a whole QTreeView, and b) for specific rows in a QTreeView within Python. I have found setColor and setBackgroundColor methods, but neither seem to work for me with QTreeView nor QStandardItem. Lots of googling shows many conversations about it, but I ha…
What is the difference between C.UTF-8 and en_US.UTF-8 locales?
I’m migrating a Python application from an Ubuntu server with a en_US.UTF-8 locale to a new Debian server which comes with C.UTF-8 already set by default. I’m trying to understand if there could be any impact from this change. Answer In general C is for computer, en_US is for people in US who spea…
How to create zip64 archive using shutil.make_archive
Python code snippet which creates creates zip archive file from a folder. I am getting this error : Filesize would require ZIP64 extensions. How to create ZIP64 archive file using shutil.make_archive? Note: I cannot use zipfile.ZipFile function. Answer You must be using a Python version prior to 3.4 unfortuna…