craftbeerpi4-pione/venv/lib/python3.8/site-packages/pandas/tests/computation/test_compat.py

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from distutils.version import LooseVersion
import pytest
from pandas.compat._optional import VERSIONS
import pandas as pd
from pandas.core.computation.engines import ENGINES
import pandas.core.computation.expr as expr
def test_compat():
# test we have compat with our version of nu
from pandas.core.computation.check import NUMEXPR_INSTALLED
try:
import numexpr as ne
ver = ne.__version__
if LooseVersion(ver) < LooseVersion(VERSIONS["numexpr"]):
assert not NUMEXPR_INSTALLED
else:
assert NUMEXPR_INSTALLED
except ImportError:
pytest.skip("not testing numexpr version compat")
@pytest.mark.parametrize("engine", ENGINES)
@pytest.mark.parametrize("parser", expr.PARSERS)
def test_invalid_numexpr_version(engine, parser):
def testit():
a, b = 1, 2 # noqa
res = pd.eval("a + b", engine=engine, parser=parser)
assert res == 3
if engine == "numexpr":
try:
import numexpr as ne
except ImportError:
pytest.skip("no numexpr")
else:
if LooseVersion(ne.__version__) < LooseVersion(VERSIONS["numexpr"]):
with pytest.raises(ImportError):
testit()
else:
testit()
else:
testit()