[issue20028] csv: Confusing error message when giving invalid quotechar in initializing dialect

[miss-islington]

miss-islington <mariatta.wijaya+miss-islington at gmail.com> added the comment:


New changeset 8772935765e7a4f04f7f561e37d0c0aee71d8030 by Miss Islington (bot) in branch '3.10':
bpo-20028: Improve error message of csv.Dialect when initializing (GH-28705)
https://github.com/python/cpython/commit/8772935765e7a4f04f7f561e37d0c0aee71d8030


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<https://bugs.python.org/issue20028>
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