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Diffstat (limited to 'examples/eval_arith.py')
| -rw-r--r-- | examples/eval_arith.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/examples/eval_arith.py b/examples/eval_arith.py index 6a747f3..4f6082f 100644 --- a/examples/eval_arith.py +++ b/examples/eval_arith.py @@ -17,8 +17,11 @@ from pyparsing import ( opAssoc, infixNotation, Literal, + ParserElement, ) +ParserElement.enablePackrat() + class EvalConstant: "Class to evaluate a parsed constant or variable" |