Antoine Pitrou <pit...@free.fr> added the comment:
How about the following solution:
>>> def a(s):
... s = s.encode('unicode-escape').decode('ascii')
... s = s.replace("'", r"\'")
... return "'" + s + "'"
...
>>> s = "'\0\"\n\r\t abcd\x85é\U00012fff\U0001D121xxx\uD800."
>>> print(ascii(s)); print(a(s)); print(repr(s))
'\'\x00"\n\r\t abcd\x85\xe9\U00012fff\ud834\udd21xxx\ud800.'
'\'\x00"\n\r\t abcd\x85\xe9\U00012fff\U0001d121xxx\ud800.'
'\'\x00"\n\r\t abcd\x85é\U00012fff𝄡xxx\ud800.'
(I think I've included everything:
- normal chars
- control chars
- one-byte non-ASCII
- two-byte non-ASCII (and lone surrogate)
- printable and non-printable surrogate pairs)
- single and double quotes)
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue9804>
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