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7267
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1 # Tests proper handling of lextab and parsetab files in package structures
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2 # Check of warning messages when files aren't writable
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3
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4 # Here for testing purposes
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5 import sys
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6 if '..' not in sys.path:
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7 sys.path.insert(0, '..')
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8
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9 import ply.lex
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10 import ply.yacc
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11
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12 def patched_open(filename, mode):
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13 if 'w' in mode:
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14 raise IOError("Permission denied %r" % filename)
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15 return open(filename, mode)
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16
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17 ply.lex.open = patched_open
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18 ply.yacc.open = patched_open
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19 try:
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20 from .parsing.calcparse import parser
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21 finally:
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22 del ply.lex.open
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23 del ply.yacc.open
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24
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25
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