True — Expert Examples

Boolean literal representing true/1

EasyIntermediateAdvancedExpert

Boolean singleton internals

Exploring how True works at the CPython level.

python
# True is a singleton
a = bool(1)
b = True
c = bool("yes")
print(f"a is b: {a is b}")
print(f"a is c: {a is c}")

# Memory address is always the same
print(f"id(True): {id(True)}")
print(f"id(bool(1)): {id(bool(1))}")

# Bytecode for boolean operations
import dis
def check(x):
    if x:
        return True
    return False
dis.dis(check)

True and False are singletons — every True in your program is the exact same object. CPython interns them like small integers.

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