43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
import subprocess
|
|
import sys
|
|
import textwrap
|
|
|
|
import pytest
|
|
|
|
from numpy.testing import IS_WASM
|
|
|
|
|
|
@pytest.mark.skipif(IS_WASM, reason="can't start subprocess")
|
|
def test_lazy_load():
|
|
# gh-22045. lazyload doesn't import submodule names into the namespace
|
|
|
|
# Test within a new process, to ensure that we do not mess with the
|
|
# global state during the test run (could lead to cryptic test failures).
|
|
# This is generally unsafe, especially, since we also reload the C-modules.
|
|
code = textwrap.dedent(r"""
|
|
import sys
|
|
from importlib.util import LazyLoader, find_spec, module_from_spec
|
|
|
|
# create lazy load of numpy as np
|
|
spec = find_spec("numpy")
|
|
module = module_from_spec(spec)
|
|
sys.modules["numpy"] = module
|
|
loader = LazyLoader(spec.loader)
|
|
loader.exec_module(module)
|
|
np = module
|
|
|
|
# test a subpackage import
|
|
from numpy.lib import recfunctions # noqa: F401
|
|
|
|
# test triggering the import of the package
|
|
np.ndarray
|
|
""")
|
|
p = subprocess.run(
|
|
(sys.executable, '-c', code),
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.STDOUT,
|
|
encoding='utf-8',
|
|
check=False,
|
|
)
|
|
assert p.returncode == 0, p.stdout
|