I have a string.
s = u\"
If you can keep the alert in a separate string "a":
a = '\xc7\xeb\xca\xe4\xc8\xeb\xd5\xfd\xc8\xb7\xd1\xe9\xd6\xa4\xc2\xeb,\xd0\xbb\xd0\xbb!'.decode("gbk")
s = u""
print s
Then it will print:
If you want to automatically extract the substring in one go:
s = ""
s = unicode("'".join((s.decode("gbk").split("'",2))))
print s
will print: