locals() — Expert Examples
Returns a dictionary of the current local symbol table
locals() performance and internals
Performance characteristics and CPython implementation details.
python
# locals() internals import dis def using_locals(): pass # Bytecode analysis dis.dis(using_locals) # Check if it's truly built-in import builtins print(f"\nlocals is builtin: {hasattr(builtins, 'locals')}") print(f"Type: {type(builtins.locals)}")
Understanding the internal implementation helps optimize hot paths in performance-critical code.
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