从另一个子文件夹导入 class

Question

I'm working on a project which is stored locally inside a folder called NeuralNetwork .

I have a.py file inside a folder load_data named load_data.py . Inside that.py file is a class names LoadData . I would like to import that class inside a file test_load_data.py stored in NeuralNetwork/tests/test_load_data/unit_tests/test_load_data.py

I tried to do it in the following way

from NeuralNetwork.load_data.load_data import LoadData

Unfortunately it didn't work. That's how my project looks like

david@macbook-air-david Lab2 % ls -1R
NeuralNetwork

./NeuralNetwork:
Datasets
__init__.py
load_data
tests

./NeuralNetwork/Datasets:
__init__.py
mnist.pkl

./NeuralNetwork/load_data:
__init__.py
load_data.py

./NeuralNetwork/tests:
__init__.py
test_load_data
test_neural_network

./NeuralNetwork/tests/test_load_data:
__init__.py
functional_tests
unit_tests

./NeuralNetwork/tests/test_load_data/functional_tests:

./NeuralNetwork/tests/test_load_data/unit_tests:
__init__.py
test_load_data.py

./NeuralNetwork/tests/test_neural_network:

What am I doing wrong? I would appreciate any help!

Answer 1

Add the following to load_data.py to add its directory to search paths:

sys.path.append(".") # "." refers to current working directory

Then import desired class from file from within test_load_data.py :

from load_data import Class