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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
__init__.py	0 B	-rw-r--r--
test__all__.py	221 B	-rw-r--r--
test_ctypeslib.py	12 KB	-rw-r--r--
test_lazyloading.py	1.13 KB	-rw-r--r--
test_matlib.py	1.81 KB	-rw-r--r--
test_numpy_config.py	1.21 KB	-rw-r--r--
test_numpy_version.py	1.54 KB	-rw-r--r--
test_public_api.py	16.48 KB	-rw-r--r--
test_reloading.py	2.3 KB	-rw-r--r--
test_scripts.py	1.61 KB	-rw-r--r--
test_warnings.py	2.23 KB	-rw-r--r--

Code Editor : test_lazyloading.py

import sys
import importlib
from importlib.util import LazyLoader, find_spec, module_from_spec
import pytest

# Warning raised by _reload_guard() in numpy/__init__.py
@pytest.mark.filterwarnings("ignore:The NumPy module was reloaded")
def test_lazy_load():
    # gh-22045. lazyload doesn't import submodule names into the namespace
    # muck with sys.modules to test the importing system
    old_numpy = sys.modules.pop("numpy")

numpy_modules = {}
    for mod_name, mod in list(sys.modules.items()):
        if mod_name[:6] == "numpy.":
            numpy_modules[mod_name] = mod
            sys.modules.pop(mod_name)

try:
        # 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

# test triggering the import of the package
        np.ndarray

finally:
        if old_numpy:
            sys.modules["numpy"] = old_numpy
            sys.modules.update(numpy_modules)

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Code Editor : test_lazyloading.py