Source

ply / test / lex_error3.py

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# lex_token.py
#
# t_error defined as function, but with wrong # args

import lex

tokens = [
    "PLUS",
    "MINUS",
    "NUMBER",
    ]

t_PLUS = r'\+'
t_MINUS = r'-'
t_NUMBER = r'\d+'

def t_error():
    pass

import sys
sys.tracebacklimit = 0

lex.lex()