8000 ENH: Add ``__f2py_numpy_version__`` attribute to Fortran modules. by sturlamolden · Pull Request #16594 · numpy/numpy · GitHub
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ENH: Add __f2py_numpy_version__ attribute to Fortran modules. #16594

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Merged
merged 1 commit into from
Jun 18, 2020
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ENH: Add __f2py_numpy_version__ attribute to Fortran modules. #16594

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6 changes: 6 additions & 0 deletions numpy/f2py/rules.py
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,9 @@
from . import __version__
f2py_version = __version__.version

from .. import version as _numpy_version
numpy_version = _numpy_version.version

import os
import time
import copy
Expand Down Expand Up @@ -206,6 +209,9 @@
\t\t\"This module '#modulename#' is auto-generated with f2py (version:#f2py_version#).\\nFunctions:\\n\"\n#docs#\".\");
\tPyDict_SetItemString(d, \"__doc__\", s);
\tPy_DECREF(s);
\ts = PyUnicode_FromString(\"""" + numpy_version + """\");
\tPyDict_SetItemString(d, \"__f2py_numpy_version__\", s);
\tPy_DECREF(s);
\t#modulename#_error = PyErr_NewException (\"#modulename#.error\", NULL, NULL);
\t/*
\t * Store the error object inside the dict, so that it could get deallocated.
Expand Down
22 changes: 21 additions & 1 deletion numpy/f2py/tests/test_regression.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
import pytest

import numpy as np
from numpy.testing import assert_raises, assert_equal
from numpy.testing import assert_, assert_raises, assert_equal, assert_string_equal

from . import util

Expand All @@ -25,3 +25,23 @@ def test_inout(self):
x = np.arange(3, dtype=np.float32)
self.module.foo(x)
assert_equal(x, [3, 1, 2])


class TestNumpyVersionAttribute(util.F2PyTest):
# Check that th attribute __f2py_numpy_version__ is present
# in the compiled module and that has the value np.__version__.
sources = [_path('src', 'regression', 'inout.f90')]

@pytest.mark.slow
def test_numpy_version_attribute(self):

# Check that self.module has an attribute named "__f2py_numpy_version__"
assert_(hasattr(self.module, "__f2py_numpy_version__"),
msg="Fortran module does not have __f2py_numpy_version__")

# Check that the attribute __f2py_numpy_version__ is a string
assert_(isinstance(self.module.__f2py_numpy_version__, str),
msg="__f2py_numpy_version__ is not a string")

# Check that __f2py_numpy_version__ has the value numpy.__version__
assert_string_equal(np.__version__, self.module.__f2py_numpy_version__)
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