[issue18829] csv produces confusing error message when passed a non-string delimiter

[Vajrasky Kok]

Vajrasky Kok added the comment:

I noticed in CPython source code, when we print the type of the object, we use "%.200s" not "%s". For example, in Modules/posixmodule.c:

"uid should be integer, not %.200s",

So the newest path was created to conform with this tradition.

Another thing I noticed, there are two ways to get the type of object:

1. src->ob_type->tp_name
2. Py_TYPE(src)->tp_name

Both are widely used. So I am not sure which is the best way. I leave it alone this issue.

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Added file: http://bugs.python.org/file31642/fix_error_message_reader_csv_alternative_1_v7.patch

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