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Understanding Python virtual environments

High Level Introductions

• Is UV the FUTURE of Python PACKAGING? 🐍📦, by Hynek Schlawack
• Which Python Package Manager Should You Use?

Articles

• How virtual environments work by Brett Cannon

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X11 Forwarding to Docker

Examples of X11 forwarding to Docker for Linux and macOS. In both situations:

• xhost is used to set the host and/or user names allowed to make connections to the X server
• The DISPLAY Docker environment variable must be set
• The directory /tmp/.X11-unix/ directory must be volume mounted into the container at /tmp/.X11-unix/

Linux

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# Use the generator .next method to quickly get the first non-None item in a list

if __name__ == "__main__":
    item_list = [None, None, "non-None-A", "non-None-B", None]
    item = next(item for item in item_list if item is not None)
    assert item == "non-None-A"
    print(item)

# -            axes = next(
# -                artist

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Examples of non-interactive matplotlib backends with or without GUIs

It is first worth reading about backends in the matplotlib Usage Guide.

Non-interactive with GUI

Running

$ python with_gui.py

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.ipynb_checkpoints/

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Stacked Bar Plot Example

Summary

This is an example of how to create a stacked bar plot with percent family from a fish data set. Using this example you will be able to take a full data set and compute the family proportions just before plotting without the need to save a new dataframe.

Dependencies

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.ipynb_checkpoints/
example.root

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name: Deploy build

on:
  push:
    branches:
    - main
    tags:
    - v*

jobs:

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Bug Report for pyAMI provenance node structure inconsistency between Python 2 and Python 3

I'm seeing a bug between pyAMI v5.1.2 on CVMFS with inconsistent return structure for the provenance node dicts. The docs mention that for the pyAMI.atlas.api.get_dataset_prov API the return should be

a map of python dictionnaries. The key "node" gives a list of dataset with the distance to the given dataset and the key "edge" gives the list of successive pairs of input an output datasets.

This is true for Python 2.7, but for Python 3 the return structure is inconsistent with some datasets in the provenance node list having a return of

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Regression in jaxlib v0.1.58 for jax.scipy.special.gammaln for CPU

In pyhf we've noticed one of our unit tests that was passing for jax v0.2.7 and jaxlib v0.1.57, however, with the release of jaxlib v0.1.58 it has started failing. We've narrowed it down to being for jaxlib v0.1.58 with jax_enable_x64=True in CPU mode (aka, where our unit test run).

Minimal Reproducible Example

In a fresh Python 3.8 virtual environment