为什么setuptools不在子文件夹中复制模块？

Question

我有一个名为hwrt的项目(参见GitHub,PyPI),结构如下:

.
??? bin
??? docs
??? hwrt
?   ??? datasets
?   ?   ??? crohme_eval.py
?   ?   ??? __init__.py
?   ?   ??? inkml.py
?   ?   ??? README.md
?   ?   ??? results.csv
?   ??? __init__.py
?   ??? misc: Not important for this question
?   ??? selfcheck.py
?   ??? serve.py
?   ??? ... (more Python modules)
?   ??? templates: Not important for this question
?   ??? view.py
??? LICENSE
??? Makefile
??? MANIFEST.in
??? README.md
??? requirements.txt
??? setup.cfg
??? setup.py
??? tests: Not important for this question

我的问题是

$ python
>>> from hwrt.datasets import inkml
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named datasets

root/of/project$ python
>>> from hwrt.datasets import inkml
>>> 

请注意该datasets文件夹具有__init__.py.所以这不是问题.一个(？)问题似乎是setuptools不复制数据集文件夹.除了放入__init__.py文件夹之外,我还需要做什么吗？

setup.py

try:
    from setuptools import setup
except ImportError:
    from distutils.core import setup

config = {
    'name': 'hwrt',
    'version': '0.1.217',
    'author': 'Martin Thoma',
    'author_email': 'info@martin-thoma.de',
    'maintainer': 'Martin Thoma',
    'maintainer_email': 'info@martin-thoma.de',
    'packages': ['hwrt'],
    'scripts': ['bin/hwrt', 'bin/backup.py',
                'bin/test.py', 'bin/train.py',
                'bin/create_testset_online_once.py'],
    'package_data': {'hwrt': ['templates/*', 'misc/*']},
    'platforms': ['Linux', 'MacOS X', 'Windows'],
    'url': 'https://github.com/MartinThoma/hwrt',
    'license': 'MIT',
    'description': 'Handwriting Recognition Tools',
    'long_description': ("A tookit for handwriting recognition. It was "
                         "developed as part of the bachelors thesis of "
                         "Martin Thoma."),
    'install_requires': [
        "argparse",
        "theano",
        "nose",
        "natsort",
        "PyYAML",
        "matplotlib",
        "nntoolkit",
        "h5py",
        "flask",
        "flask-bootstrap",
        "requests",
        "six"
    ],
    'keywords': ['HWRT', 'recognition', 'handwriting', 'on-line'],
    'download_url': 'https://github.com/MartinThoma/hwrt',
    'classifiers': ['Development Status :: 3 - Alpha',
                    'Environment :: Console',
                    'Intended Audience :: Developers',
                    'Intended Audience :: Science/Research',
                    'License :: OSI Approved :: MIT License',
                    'Natural Language :: English',
                    'Programming Language :: Python :: 2.7',
                    'Programming Language :: Python :: 3',
                    'Programming Language :: Python :: 3.3',
                    'Programming Language :: Python :: 3.4',
                    'Topic :: Scientific/Engineering :: Artificial Intelligence',
                    'Topic :: Software Development',
                    'Topic :: Utilities'],
    'zip_safe': False,
    'test_suite': 'nose.collector'
}

setup(**config)

Answer 1

默认情况下,setup()中的"packages"关键字不包含所有子包.它只查找与setup.py位于同一文件夹中的软件包.您只需将"hwrt.datasets"添加到包列表中即可.

但是,如果您决定向项目中添加更多包,则以后可能会遇到麻烦,因此典型的用例是使用辅助函数find_packages.

例如:

from setuptools import setup, find_packages

setup(
    # ...
    packages=find_packages(".")
)

请参见http://setuptools.readthedocs.io/en/latest/setuptools.html#using-find-packages