我想检测模块是否发生了变化。现在,使用inotify很简单,你只需要知道你想从哪个目录获取通知。

如何在python中检索模块的路径?


当前回答

如果你使用pip安装它,“pip show”工作得很好(“Location”)

$ PIP show detectron2

Name: detectron2
Version: 0.1
Summary: Detectron2 is FAIR next-generation research platform for object detection and segmentation.
Home-page: https://github.com/facebookresearch/detectron2
Author: FAIR
Author-email: None
License: UNKNOWN
Location: /home/ubuntu/anaconda3/envs/pytorch_p36/lib/python3.6/site-packages
Requires: yacs, tabulate, tqdm, pydot, tensorboard, Pillow, termcolor, future, cloudpickle, matplotlib, fvcore

更新:

$ python -m PIP show mymodule

(author: wisbucky。)

其他回答

当你导入一个模块时,你可以访问大量的信息。检查dir(a_module)。至于路径,有一个dunder: a_module.__path__。也可以只打印模块本身。

>>> import a_module
>>> print(dir(a_module))
['__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__path__', '__spec__']
>>> print(a_module.__path__)
['/.../.../a_module']
>>> print(a_module)
<module 'a_module' from '/.../.../a_module/__init__.py'>

您可以导入您的模块 然后点击它的名字,你会得到它的完整路径

>>> import os
>>> os
<module 'os' from 'C:\\Users\\Hassan Ashraf\\AppData\\Local\\Programs\\Python\\Python36-32\\lib\\os.py'>
>>>
import a_module
print(a_module.__file__)

会给你已经加载的。pyc文件的路径,至少在Mac OS x上是这样的

import os
path = os.path.abspath(a_module.__file__)

你也可以试试:

path = os.path.dirname(a_module.__file__)

获取模块的目录。

如果你使用pip安装它,“pip show”工作得很好(“Location”)

$ PIP show detectron2

Name: detectron2
Version: 0.1
Summary: Detectron2 is FAIR next-generation research platform for object detection and segmentation.
Home-page: https://github.com/facebookresearch/detectron2
Author: FAIR
Author-email: None
License: UNKNOWN
Location: /home/ubuntu/anaconda3/envs/pytorch_p36/lib/python3.6/site-packages
Requires: yacs, tabulate, tqdm, pydot, tensorboard, Pillow, termcolor, future, cloudpickle, matplotlib, fvcore

更新:

$ python -m PIP show mymodule

(author: wisbucky。)

如果你导入的是一个site-package(例如pandas),我建议这样获取它的目录(如果import是一个模块,例如pathlib):

from importlib import resources  # part of core Python
import pandas as pd

package_dir = resources.path(package=pd, resource="").__enter__()

在一般情况下。当任务是关于访问站点包的路径/资源时,可以考虑资源。