def is_eventvar(expr):
    assert isinstance(expr, string_types), "%s is not a string" % expr
    return re.match(r'^e\d*$', expr) is not None
Pet.deletePet
dataset/ETHPy150Open nltk/nltk/nltk/sem/logic.py/is_eventvar--crossover with--dataset/ETHPy150Open mission-liao/pyswagger/pyswagger/tests/v1_2/test_io.py/SwaggerRequest_Pet_TestCase.test_deletePet