1 # Tests proper handling of lextab and parsetab files in package structures 2 # Check of warning messages when files aren't writable 3 4 # Here for testing purposes 5 import sys 6 if '..' not in sys.path: 7 sys.path.insert(0, '..') 8 9 import ply.lex 10 import ply.yacc 11 12 def patched_open(filename, mode): 13 if 'w' in mode: 14 raise IOError("Permission denied %r" % filename) 15 return open(filename, mode) 16 17 ply.lex.open = patched_open 18 ply.yacc.open = patched_open 19 try: 20 from .parsing.calcparse import parser 21 finally: 22 del ply.lex.open 23 del ply.yacc.open 24 25 26
