Read a file in Python with a relative path from the program

The path of the executable file can be obtained with __file__, so use ʻos.path.dirname to make it a directory. Use ʻos.path.join to connect the path to the file you want.

└── some_dir
    ├── products.json

import os
dirname = os.path.dirname(__file__)
filename = os.path.join(dirname, 'products.json')
with open(filename) as f

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