int_convert: Memory effect regarding number-base if parser is used multiple times

[jenisys]

RELATED TO NUMBER-FORMAT: :d Bug was probably introduced in v1.15.0 when „int_convert()“ function was replaced by Callable class that remembers number-base auto-detection as attribute. When the parser object is used the second time, the first discovered number-base is used instead of performing auto-discovery of base again.

EXAMPLE:

import parse
parser = parse.Parser(„{:d}“)
assert parser.parse(„0x12“).fixed[0] == 18.  # OK, but now base=16 was discovered in type-converter
assert parser.parse(„12“) .fixed[0] == 12  # FAILS: 18 again, because base=16 is used again instead of using base=10

[jenisys]

LESSON LEARNT: Type converters should be immutable (before first usage).

[jenisys]

DUPLICATES: #119

[r1chardj0n3s]

fixed in #119

[r1chardj0n3s]

Released as 1.18.0