FileNotFoundError：运行unittest python时

Question

For my new Python project, I followed the following directory structure as suggested by, http://docs.python-guide.org/en/latest/writing/structure/

Project
      solution
          __init__.py
          trial.txt
          trial.py
      tests
          __init__.py
          test.py

Where trial.py's demo reads trial.text and perform some operation

with open("trial.txt") as f:
    f.readlines()

The code works and tests works fine when I run it from project directory

The test throws file not found error on trial.txt when running from inside of tests directory

I have also added a context module for tests

import os
import sys
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '../solution')))

import trial

Answer 1

Fixed it by adding this before opening the file

file_path = (os.path.dirname(__file__))+"/trail.txt"
with open(filepath,"r") as f:
    f.readlines()

Answer 2

You can do this to make it write

Make a python script in the Solution directory and name it as

name -> __init__.py

import trial

and save this file in the Solution directory

Now try to import Solution from test.py like this one right here:

from Solution import trial
trial.main()

But make sure the code in the trial.py file in some function like main() and then you can call like

trial.main() 

For better understanding see this example of my directory

The file data.py and __init__.py are in the same directory. You can see here and try to solve.