Python ftplib: Show FTP upload progress

Question

I am uploading a large file with FTP using Python 3.4.

I would like to be able to show the progress percentage while uploading the file. Here\'s my code:

Answer 1

There are three non-hacky ways I can think of. All of then shift the "ownwership" of the variable:

1. have the value passed in and return the result (basically means its stored in the caller)
2. have the value be global, and initialize it to 0 and the top of your file. (read up on the global keyword)
3. have this function as a member function of a class to handle upload tracking. Then make sizeWritten a instance variable of that class.