styleguide

Abstraction: Google's authoritative Python coding standards and best practices

Key points:

• 80-character max line length; use implicit line continuation with parentheses, not backslashes; 4-space indentation, no tabs
• Type annotations strongly encouraged; run pytype at build time; always annotate public APIs
• Avoid mutable global state; module-level constants permitted and encouraged (ALL_CAPS naming)
• Docstrings mandatory for non-trivial functions; use """ format with Args/Returns/Raises sections; class docstrings document public attributes
• Use pylint for linting; suppress specific warnings with symbolic names (not deprecated disable-msg); do not use catch-all except: clauses
• Prefer f-strings or % formatting over + concatenation; avoid string accumulation in loops (use list + join)

Connections: Google · Python · Code Style · Software Engineering

Source: https://google.github.io/styleguide/pyguide.html