Python 和导入

Question

I have a python project where I use grpc. I create the files with python -m grpc_tools.protoc -I "pathToMyProtoFile" --python_out=. --grpc_python_out=. "pathToMyProtoFile\\module.proto" python -m grpc_tools.protoc -I "pathToMyProtoFile" --python_out=. --grpc_python_out=. "pathToMyProtoFile\\module.proto"

I want all the grpc-stuff to be in a python package. So I created a sub folder "my_package_folder" and added an empty __init__.py in it.

My Problem: How to access and where to place the generated module_pb2.py and module_pb2_grpc.py .

If I place them into the root folder of my application I cannot access them from my package with from .. import module_pb2_grpc "attempted relative import beyond top-level package"

If I place them into my "my_package_folder" the 2 generated files do not find each other. ( import module_pb2 as module__pb2 in "module_pb2_grpc.py")

This import mechanism in python is so extremely confusing... I have no idea where to start to solve this problem.

My folder structure is just the main project folder and a sub folder "my_package_folder" for all the grpc stuff.

Answer 1

Let's say you have a folder structure like this. I'm just taking the example of one file.

├── module_pb2_grpc.py
├── my_package_folder
│   ├── __init__.py

Then to resolve the attempted relative import beyond top-level package , you can add this.

init .py

import os
import sys
SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
sys.path.append(os.path.dirname(SCRIPT_DIR))
from module_pb2_grpc import *