Reading file from a local folder python after being imported from a parent folder -


there file main.py in folder a. folder b subfolder of folder a. there files subfolder.py , data.txt inside folder b. subfolder.py has function reads data.txt . reading happens when run file subfolder.py

now in main.py import subfolder.py , call function reads data.txt says "no such file or directory data.txt "

don't understand do. can help?

could please show function in subfolder.py.

the program may unsure of data.txt file is. run in first file:

import os print os.path.dirname(os.path.realpath(__file__))

then add on string needed

if python behaves in way expect behave, may need run 

import os filepath = os.path.dirname(os.path.realpath(__file__))+"\\"+"subfolder"+"\\"+"data.txt"

and use filepath in function in subfolder.py open data.txt.

does help?


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