Message 162428 - Python tracker

It should raise a SyntaxError, if coding is 'utf8'.
I don't agree with the last patch proposed.

If the import report a SyntaxError, 'tokenize' should do the same.

$ ./python Lib/test/bad_coding2.py
  File "Lib/test/bad_coding2.py", line 1
SyntaxError: encoding problem: utf-8

and it complies strictly with PEP263.