运行 setup.py 测试时子包出现导入错误
我正在尝试为包含单元测试的 Python 项目创建安装包。我的项目布局如下：
setup.py
src/
disttest/
__init__.py
core.py
tests/
disttest/
__init__.py
testcore.py
我的 setup.py 看起来像这样：
from distutils.core import setup
import setuptools
setup(name='disttest',
version='0.1',
package_dir={'': 'src'},
packages=setuptools.find_packages('src'),
test_suite='nose.collector',
tests_require=['Nose'],
)
文件 tests/disttest/testcore.py 包含行 from disttest.core import DistTestCore 。
运行 setup.py test 现在会出现 ImportError: No module named core。
安装 setup.py 之后，python -c "from disttest.core import DistTestCore" 工作正常。如果我将 import core 放入 src/disttest/__init__.py 中，它也可以工作，但我真的不想维护它，而且它似乎只是测试所必需的。
这是为什么？修复它的正确方法是什么？
I'm trying to create an install package for a Python project with included unit tests. My project layout is as follows:
setup.py
src/
disttest/
__init__.py
core.py
tests/
disttest/
__init__.py
testcore.py
My setup.py looks like this:
from distutils.core import setup
import setuptools
setup(name='disttest',
version='0.1',
package_dir={'': 'src'},
packages=setuptools.find_packages('src'),
test_suite='nose.collector',
tests_require=['Nose'],
)
The file tests/disttest/testcore.py contains the line from disttest.core import DistTestCore.
Running setup.py test now gives an ImportError: No module named core.
After a setup.py install, python -c "from disttest.core import DistTestCore" works fine. It also works if I put import core into src/disttest/__init__.py, but I don't really want to maintain that and it only seems necessary for the tests.
Why is that? And what is the correct way to fix it?
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您可能需要仔细检查这一点，但看起来您的测试正在导入
tests/目录中的disttest包，而不是从src/目录。为什么需要使用与被测包同名的包？我只需将 testcore 模块移至测试目录，或重命名
tests/disttest包，并完全避免潜在的命名冲突。无论如何，您想要插入一个 import pdb； pdb.set_trace() 行就在失败的导入之前，并使用不同的导入语句来查看从 where 导入的内容 (
import sys; sys.modules['modulename'].__file__是你的朋友），这样你就可以更好地了解出了什么问题。You may want to double-check this, but it looks like your tests are importing the
disttestpackage in thetests/directory, instead of the package-under-test from thesrc/directory.Why do you need to use a package with the same name as the package-under-test? I'd simply move the testcore module up to the tests directory, or rename the
tests/disttestpackage and avoid the potential naming conflict altogether.In any case, you want to insert a
import pdb; pdb.set_trace()line just before the failing import and play around with different import statements to see what is being imported from where (import sys; sys.modules['modulename'].__file__is your friend) so you get a better insight into what is going wrong.