Describes the cause and action for error messages.
read already open file
python get data from an already opened file
How to check if a file is already opened (in the same process ...
Re-read an open file Python
check if a file is open in Python
Read from an already open file (Python) | DaniWeb
Python Read File, Write File, Open File, Delete File, Copy File ...
File handling - Python for you and me - Read the Docs
python - Should I pass in filenames to be opened, or open files ...
Reading and Writing Files in Python (article) - DataCamp