在Python 3.6+中从并行或更高阶目录导入包

Question

My python project is structured as follows

In order to user logr.py of comUtil package from dataPreparation package one has to tweak its sys path as follows

import sys sys.path.append('../') import comUtil.logr as logg

Now the question is

1. Is this an accepted practice and are there any drawbacks for such usage ?

2. What are other alternatives and possibly better ?

Answer 1

One solution could be to set the path till dataIngestionTool . Because this is your project's root directory. And then import files as:

from dataIngestionTool.comUtil.logr import *

or

from dataIngestionTool.comUtil import logr

Answer 2

1. sys.path.append('../') permanently appends this path to the list. Now, if you are going to import a_random_module for example in driver.py , the package manager will also start looking for a_random_module in the parent directory of driver.py .

2. I would suggest something like this to add a certain path to sys:

    import sys import os def append_specific_dir_to_sys_path(): current_dir = os.getcwd() parent_dir = current_dir.split('/')[:-1] import_dir = '/'.join(parent_dir) + '/comUtil/' sys.path.append(import_dir) append_specific_dir_to_sys_path()