The pass statement is Python’s no-operation placeholder. It lets a class, function, or loop body satisfy Python’s syntax requirements while doing nothing, making it useful when implementation is intentionally deferred. section 6.3.3
Use pass when a code block must exist but has no behavior yet:
- Define a custom exception without adding methods. section 14.2.2
- Validate a class definition while postponing its implementation. section 6.3.3
- Leave a function or loop body empty while demonstrating its surrounding structure. section 6.3.3
Custom exception placeholder
class TaskierError(Exception): pass class User: pass The classes are valid immediately, but neither class adds behavior beyond its base definition. section 14.2.2 section 6.3.3
