matthewfeickert

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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# 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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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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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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If you enclose a regex in parentheses () whatever is enclosed can be used in a search and replace by a number that is indexed starting with 1. So for example

\section{\sc Research Interests}

can be found with the regex

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Simple cProfile example with snakeviz

Environment Setup

Make a Python virtual environment and install the dependencies

python -m pip install --upgrade pip setuptools wheel
python -m pip install -r requirements.txt

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PyTorch Geometric Setup on DGX

Steps

1. Create a Python virtual enviroment and activate it

[user@hal-dgx]$ pyenv virtualenv 3.9.6 pytorch-geometric-example
[user@hal-dgx]$ pyenv activate pytorch-geometric-example
(pytorch-geometric-example) [user@hal-dgx]$ python -m pip install --upgrade pip setuptools wheel

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Floating point deviation in jax.numpy.percentile with linear interpolation between v0.2.20 and v0.2.21

Hi. There is some (very minor) deviations in the output of jax.numpy.percentile between jax v0.2.20 and v0.2.21 in the case that linear interpolation is used (the default). Interestingly, it is really in jax.numpy.percentile and not in jax.numpy.quantile as can be shown in the included example (for convenience this Issue also exists as a GitHub Gist).

Minimal failing example

# example.py
import jax
import jax.numpy as jnp

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ARG BASE_IMAGE=python:3.9-slim-bullseye
FROM ${BASE_IMAGE} as base

SHELL [ "/bin/bash", "-c" ]

COPY packages.txt packages.txt
# Set PATH to pickup virtualenv by default
ENV PATH=/usr/local/venv/bin:"${PATH}"
RUN apt-get -qq -y update && \
    DEBIAN_FRONTEND=noninteractive apt-get -qq -y install --no-install-recommends $(cat packages.txt) && \

matthewfeickert

Advice for Open Source Maintainers

Collections of examples of how to deal with the multi-hat aspects of being a maintainer of an open source project.

Code of Conduct Issues

Refusal to accept Code of Conduct

• setuptools Issue 3305