何时从。Import *不够好，这是对ted的回答的改进。具体来说，这种方法不需要使用__all__。

"""Import all modules that exist in the current directory."""
# Ref https://stackoverflow.com/a/60861023/
from importlib import import_module
from pathlib import Path

for f in Path(__file__).parent.glob("*.py"):
    module_name = f.stem
    if (not module_name.startswith("_")) and (module_name not in globals()):
        import_module(f".{module_name}", __package__)
    del f, module_name
del import_module, Path

请注意，globals()中没有module_name是为了避免在已经导入模块时重新导入模块，因为这可能存在循环导入的风险。

我已经为此创建了一个模块，它不依赖于__init__.py(或任何其他辅助文件)，并让我只输入以下两行:

import importdir
importdir.do("Foo", globals())

请随意重用或贡献:http://gitlab.com/aurelien-lourot/importdir

我也遇到过这个问题，这是我的解决方案:

import os

def loadImports(path):
    files = os.listdir(path)
    imps = []

    for i in range(len(files)):
        name = files[i].split('.')
        if len(name) > 1:
            if name[1] == 'py' and name[0] != '__init__':
               name = name[0]
               imps.append(name)

    file = open(path+'__init__.py','w')

    toWrite = '__all__ = '+str(imps)

    file.write(toWrite)
    file.close()

这个函数创建一个名为__init__.py的文件(在提供的文件夹中)，其中包含一个__all__变量，该变量保存文件夹中的每个模块。

例如，我有一个名为Test的文件夹 它包含:

Foo.py
Bar.py

所以在脚本中，我想把模块导入，我会写:

loadImports('Test/')
from Test import *

这将从Test中导入所有内容，Test中的__init__.py文件现在将包含:

__all__ = ['Foo','Bar']

看看标准库中的pkgutil模块。只要目录中有__init__.py文件，它就会让你做你想做的事情。__init__.py文件可以为空。

我自己也厌倦了这个问题，所以我写了一个名为automodinit的包来解决它。你可以从http://pypi.python.org/pypi/automodinit/上得到它。

用法是这样的:

将automodinit包包含到setup.py依赖项中。 像这样替换所有__init__.py文件:

__all__ = ["I will get rewritten"]
# Don't modify the line above, or this line!
import automodinit
automodinit.automodinit(__name__, __file__, globals())
del automodinit
# Anything else you want can go after here, it won't get modified.

就是这样!从现在开始导入一个模块将设置__all__为 模块中的.py[co]文件列表，也将导入每个文件 就好像你输入了:

for x in __all__: import x

因此，“from M import *”的效果与“import M”完全匹配。

automodinit从ZIP档案内部运行，因此是ZIP安全的。

尼尔

注意你的__init__.py定义了__all__。模块-包文档说

The __init__.py files are required to make Python treat the directories as containing packages; this is done to prevent directories with a common name, such as string, from unintentionally hiding valid modules that occur later on the module search path. In the simplest case, __init__.py can just be an empty file, but it can also execute initialization code for the package or set the __all__ variable, described later. ... The only solution is for the package author to provide an explicit index of the package. The import statement uses the following convention: if a package’s __init__.py code defines a list named __all__, it is taken to be the list of module names that should be imported when from package import * is encountered. It is up to the package author to keep this list up-to-date when a new version of the package is released. Package authors may also decide not to support it, if they don’t see a use for importing * from their package. For example, the file sounds/effects/__init__.py could contain the following code: __all__ = ["echo", "surround", "reverse"] This would mean that from sound.effects import * would import the three named submodules of the sound package.