pkg资源。ModuleNotFoundError额外资源

我有一个Python包,里面有一些模板文件。我正试图通过以下方式访问它们的路径 pkg_resources ,但我不知道如何:

antigravity.py :

import pkg_resources

def my_function():
    print(pkg_resources.resource_listdir('antigravity', 'extras'))
    print(pkg_resources.resource_filename('antigravity', 'foo.dat'))
    print(pkg_resources.resource_filename('antigravity.extras', 'bar.dat'))
    return True

if __name__ == '__main__':
    my_function()

输出为:

python antigravity\antigravity.py
['bar.dat', 'test.txt']
C:\git\swt_root\new_project\antigravity\foo.dat
Traceback (most recent call last):
  File "antigravity\antigravity.py", line 22, in <module>
    my_function()
  File "antigravity\antigravity.py", line 16, in my_function
    print(pkg_resources.resource_filename('antigravity.extras', 'bar.dat'))
  File "C:\Users\my_user\Anaconda3\lib\site-packages\pkg_resources\__init__.py", line 1128, in resource_filename
    return get_provider(package_or_requirement).get_resource_filename(
  File "C:\Users\my_user\Anaconda3\lib\site-packages\pkg_resources\__init__.py", line 345, in get_provider
    __import__(moduleOrReq)
ModuleNotFoundError: No module named 'antigravity.extras'; 'antigravity' is not a package

我不是在看书 bar.dat ,我实际上正在尝试替换以下代码:

import pathlib

script_folder = pathlib.Path(__file__).parents[0]
bar = script_folder.joinpath('extras', 'bar.dat')

我已经安装了该软件包 pip install -e . 。我在Windows 10上使用Anaconda。

我的包结构是:

new_project
|   MANIFEST.in
|   setup.py
|
\---antigravity
    |   antigravity.py
    |   foo.dat
    |   __init__.py
    |
    \---extras
            bar.dat
            __init__.py

MANIFEST.in :

include antigravity/foo.dat
include antigravity/extras/bar.dat

setup.py :

import setuptools

setuptools.setup(
    name="antigravity",
    version="0.0.1",
    packages=setuptools.find_packages(),
    include_package_data=True,
    test_suite="test",
    python_requires=">=3.6",
)

__init__.py :

from .antigravity import my_function

foo.dat:

foo

bar.dat:

bar