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import math
from typing import Any
from xml.etree.ElementTree import QName
def update(obj: Any, **kwargs: Any):
"""Update an object from keyword arguments with dotted keys."""
for key, value in kwargs.items():
attrsetter(obj, key, value)
def attrsetter(obj: Any, attr: str, value: Any):
names = attr.split(".")
last = names.pop()
for name in names:
obj = getattr(obj, name)
setattr(obj, last, value)
def literal_value(value: Any) -> str:
if isinstance(value, float):
return str(value) if math.isfinite(value) else f'float("{value}")'
if isinstance(value, QName):
return f'QName("{value.text}")'
return repr(value)
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