New submission from S. Andrew Sheppard:
I came across unexpected behavior working with unpacking keyword arguments in
Python 3. It appears to be related to the automatic normalization of unicode
characters to NFKC (PEP 3131), which converts e.g. MICRO SIGN to GREEK SMALL
LETTER MU. This
S. Andrew Sheppard added the comment:
Here's a simple namedtuple example for good measure.
from collections import namedtuple
Test = namedtuple("Test", [chr(181)])
>>> Test(**{chr(956): "test1"})
Test(ยต='test1')
>>> Test(**{chr(181)
S. Andrew Sheppard added the comment:
Fair enough. For future reference by anyone coming across this issue, here's a
simplified version of the workaround I used:
from unicodedata import normalize
def normalize_keys(data):
return {
normalize('NFKC', key): value
