embexpr
safe embedded python expression parser (for mainly easy DSL or config file).
Getting Started
pip install embexprHow to Use
from embexpr import Expr, ParseError
assert Expr('3 * 5')() == 15
assert Expr('"foo" + "bar"')() == "foobar"
assert Expr('len("example")')() == 7
assert Expr('s.startswith("prefix_")')(s="prefix_suffix") == True
try:
Expr('eval("1")')()
except ParseError as e:
print(e)Reference
https://github.com/ansible/ansible/blob/devel/lib/ansible/template/safe_eval.py http://stackoverflow.com/questions/12523516/using-ast-and-whitelists-to-make-pythons-eval-safe
Author
Nao Yonashiro(@orisano)
License
MIT
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