从python中的子文件夹层次结构导入

Question

i am trying to import specified modules from test_file hierarchy

something like :

test_case1.py
test_subsuite_2
test_sub_2.1.1.py
test_suite2

is it possible to do a run import on this hierarchy

/project/main.py
/project/test_files

test_files folder hierarchy is like this :

test_files
    test_suite1
        test_case1.py
        test_subsuite_1
            test_sub1_1.py
            test_sub1_2.py
        test_subsuite_2
            test_subsuite_2_1
                test_sub_2.1.1.py
            test_sub2_1.py
            test_sub3_2.py

    test_suite2
        test_case2.py
        test_subsuite2_1
            test_sub21_1.py
            test_sub21_2.py
        test_subsuite2_2
            test_sub22_1.py
            test_sub23_2.py

Answer 1

Create an empty file called __init__.py in all you folders. Then you can import using . as a folder separator. Documentation here.

Answer 2

The key is to create a blank file __init__.py on all subfolders containing the files you want to import. In your case, you will have to create the __init__.py files on all of the following folders-

• test_files
• test_files\\test_suite1
• test_files\\test_suite1\\test_subsuite_2
• test_files\\test_suite1\\test_subsuite_2\\test_subsuite_2_1

Also, when you import files be careful about specifying the import path correctly, with the entire path from the topmost level specified, and with different folder levels separated by a .
For example, you must import test_case1 by specifying :

from test_files.test_suite1 import test_case1

Similarly, test_subsuite_2 can be imported by specifying :

from test_files.test_suite1 import test_subsuite_2