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Issue #25047: Respect case writing XML encoding declarations

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This restores the ability to write encoding names in uppercase like "UTF-8",
which worked in Python 2.
This commit is contained in:
Martin Panter 2015-09-23 01:14:35 +00:00
parent f94471c140
commit 89f76d3f91
3 changed files with 22 additions and 12 deletions
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9
Lib/xml/etree/ElementTree.py
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@ -756,14 +756,13 @@ class ElementTree:
encoding = "utf-8"
else:
encoding = "us-ascii"
else:
encoding = encoding.lower()
with _get_writer(file_or_filename, encoding) as write:
enc_lower = encoding.lower()
with _get_writer(file_or_filename, enc_lower) as write:
if method == "xml" and (xml_declaration or
(xml_declaration is None and
encoding not in ("utf-8", "us-ascii", "unicode"))):
enc_lower not in ("utf-8", "us-ascii", "unicode"))):
declared_encoding = encoding
if encoding == "unicode":
if enc_lower == "unicode":
# Retrieve the default encoding for the xml declaration
import locale
declared_encoding = locale.getpreferredencoding()