Eryk Sun <[email protected]> added the comment:
In Windows, maybe the os.environ mapping could use a case-insensitive subclass
of str for its keys, such as the following:
@total_ordering
class _CaseInsensitiveString(str):
def __eq__(self, other):
if not isinstance(other, str):
return NotImplemented
return self.upper() == other.upper()
def __lt__(self, other):
if not isinstance(other, str):
return NotImplemented
return self.upper() < other.upper()
def __hash__(self):
return hash(self.upper())
Change encodekey() to use this type. For example:
def encodekey(key):
return _CaseInsensitiveString(encode(key))
in which encode() is still check_str().
----------
components: +Library (Lib)
type: -> behavior
versions: +Python 3.10, Python 3.9 -Python 3.7
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<https://bugs.python.org/issue28824>
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