formatting examples

.github/workflows/formatting.yml

@@ -4,7 +4,7 @@ on: [push, pull_request, workflow_dispatch]
 
 jobs:
   docs:
-    name:    Code formatting
+    name:    Formatting
     runs-on: ubuntu-latest
 
     steps:

toolchain/bootstrap/format.sh

@@ -19,9 +19,14 @@ log "Formatting MFC:"
 
 if ! find ${@:-src} -type f | grep -Ev 'autogen' | grep -E '\.(f90|fpp)$' \
         | xargs -L 1 -P ${JOBS:-1} $SHELL toolchain/bootstrap/format_file.sh; then
-    error "Formatting MFC failed."
+    error "Formatting MFC source failed."
     exit 1
 fi
 
-ok "Done. MFC has been formatted."
+if ! find ${@:-examples} -type f | grep -E '\.(py)$' \
+        | xargs -L 1 -P ${JOBS:-1} $SHELL toolchain/bootstrap/format_python.sh; then
+    error "Formatting MFC examples failed."
+    exit 1
+fi
 
+ok "Done. MFC has been formatted."

toolchain/bootstrap/format_python.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+. toolchain/util.sh
+
+echo "> $1"
+
+black -l 200 -x "$1" &>/dev/null 2>&1
+

toolchain/pyproject.toml

@@ -25,6 +25,7 @@ dependencies = [
     "typos",
     "pylint",
     "fprettify",
+    "black",
 
     # Profiling
     "numpy",