vars() — Expert Examples

Returns the __dict__ attribute of an object

EasyIntermediateAdvancedExpert

vars() performance and internals

Performance characteristics and CPython implementation details.

python
# vars() internals
import dis

def using_vars():
    pass

# Bytecode analysis
dis.dis(using_vars)

# Check if it's truly built-in
import builtins
print(f"\nvars is builtin: {hasattr(builtins, 'vars')}")
print(f"Type: {type(builtins.vars)}")

Understanding the internal implementation helps optimize hot paths in performance-critical code.

Want to try these examples interactively?

Open Expert Playground
← Advanced Examples