bad-format-character / E1300#
Unsupported format character %r (%#02x) at index %d
Used when an unsupported format character is used in a format string.
print("%s %s" % ("hello", "world"))
print("%s %z" % ("hello", "world")) # [bad-format-character]
This check is currently only active for "old-style" string formatting as seen in the examples. See Issue #6085 for more information.
Created by the string checker.