all Python 3operatorfunction

operator.ior

in-place

In-place bitwise OR: a |= b.

Syntax

operator.ior(a, b)

For a dict since Python 3.9 it equals dict.update: the dict changes in place and the right argument wins on a shared key. For a set it is an in-place union. For ints assign the result — the usual way to accumulate flags: flags = ior(flags, FLAG_X).

Examples

# Python 3.9+
import operator
print(operator.ior(5, 2))   # → 7
read, write = 4, 2   # типовой сценарий: объединение битовых флагов
print(operator.ior(read, write))   # → 6
flags = {'r', 'w'}
print(operator.ior(flags, {'x'}) is flags)   # → True
print(sorted(flags))   # → ['r', 'w', 'x']
conf = {'debug': False}
print(operator.ior(conf, {'level': 3}))   # → {'debug': False, 'level': 3}

See also

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