Python Notes

Python

Atom

Alternative to idle3 is to use Atom.

To install Atom from the official RPM package provide by the Atom team (which is only suitable for 64-bit systems!) for the latest stable (as opposed to beta releases which are also packaged at RPMs) Atom release, run:

sudo dnf install $(curl -sL "https://api.github.com/repos/atom/atom/releases/latest" | grep "https.*atom.x86_64.rpm" | cut -d '"' -f 4)

While there is no official way to auto-update these binaries here is a ~/.bashrc (also compatible with the Zsh shell's ~/.zshrc file) snippet that will automatically check for available Atom updates and install them whenever one opens a terminal:

ATOM_INSTALLED_VERSION=$(rpm -qi atom | grep "Version" |  cut -d ':' -f 2 | cut -d ' ' -f 2)
ATOM_LATEST_VERSION=$(curl -sL "https://api.github.com/repos/atom/atom/releases/latest" | grep -E "https.*atom-amd64.tar.gz" | cut -d '"' -f 4 | cut -d '/' -f 8 | sed 's/v//g')

if [[ $ATOM_INSTALLED_VERSION < $ATOM_LATEST_VERSION ]]; then
  sudo dnf install -y https://github.com/atom/atom/releases/download/v${ATOM_LATEST_VERSION}/atom.x86_64.rpm

Customize Atom

Script

Using "Settings" install package "script" by rgbkrk.

Syntax

Using "Settings" install Theme "predawn-syntax." To enable the theme, select "Themes" and change syntax theme to "Predawn."

Editor

Use "Source Code Pro" for font and size 20. Scroll ..down.. and enable "Scroll Past End."

Set Tab Length from 2 to 4.

Auto-complete

To disable the default auto-complete, select packages and remove "autocomplete-plus" and "autocomplete-snippets."

Add Python autocomplete by installing package "autocomplete-python."

Additional Packages

• file-icons
• minimap
• auto-pep8; also, dnf install python3-autopep8
• linter-flake8; dnf install python3-flake8 or python-flake8 or both or what? <-- need to revisit for error due to missing deps

Python Profiles

1. ctrl+shift+p
2. Enter script and select script: run options
3. Enter command value as /usr/bin/python2 or python3 then save as a profile
4. ctrl+shift+b and how do I select profile?

Alternatively, use virtualenv and run Atom. For example, create a project using python3 then execute Atom from it. No need to fuss with Atom or other settings.