The problem I've noticed is that if I append the file with each of the 100k runs (one at a time), it can happen that two threads try to save to the file at the same time and some row(s) end up empty.

Python 3.8.2 is installed on Pop ... the file.write function (which writes input to a file). The first line is: file.write(input1) This will take whatever the user types for input1 and save ...

Write mode creates a file. Reading the file once it’s opened is done using the read() and readlines() function in Python. The read function returns ... Also From the output you see “\n” this indicates ...