}

# Either add symbols to this dictionary or to the symbols dictionary

# directly: Whichever is easier. They are merged later.

_strprefixes = [p + q for p in ('b', 'f', 'r', 'u') for q in ("'", '"')]

_symbols_inverse = {

'STRINGS' : ("'", "'''", "r'", "b'", '"""', '"', 'r"', 'b"'),

'STRINGS' : ("'", "'''", '"', '"""', *_strprefixes),

'OPERATORS' : ('+', '-', '*', '**', '/', '//', '%', '<<', '>>', '&',

'|', '^', '~', '<', '>', '<=', '>=', '==', '!=', '<>'),

'COMPARISON' : ('<', '>', '<=', '>=', '==', '!=', '<>'),

if not request: break

except (KeyboardInterrupt, EOFError):

break

request = replace(request, '"', '', "'", '').strip()

request = request.strip()

# Make sure significant trailing quoting marks of literals don't

# get deleted while cleaning input

if (len(request) > 2 and request[0] == request[-1] in ("'", '"')

and request[0] not in request[1:-1]):

request = request[1:-1]

if request.lower() in ('q', 'quit'): break

if request == 'help':

self.intro()