I got tired of doing what-if final class grades effect calculations on GPA by hand, so I created wrote some Python to do it for me. This accounts for accumulation of credits in high school, transfer credits, and general semesters. BUT, the magic comes when you're trying to guestimate what your GPA will be if you absolutely cannot pull your life together and end up with a few rough final course grades. Although, I have found this tool to be rather reassuring - usually a B vs. an A won't make thaaat big of a difference :-).
Admittedly, this isn't the best use of Python, but I wrote it a while back when I was first learning the language and wanted to use something without as much overhead as Java.
My system runs python3 and everything works correctly without a virtual environment. All you have to do is clone the repo, update the grades.txt file with your specific semester info and run python3 gpa.py. The program will write to a file called gpa.txt regardless of whether it exists or not. If you have transfer credits or high school credits that affect your GPA, you can just add another section in the grades.txt input file (see below for format).
Note: You might have to change the tables.py file depending on your school's grading system. It currently uses the 7-point scale common at many U.S. universities where an A or A+ is equivalent to a 4.0 GPA.
Here is a sample of the input file - grades.txt:
-2015F
0,P,Pass_NoPass
3,A,Too_Many_All_Nighters
3,B,Learned_ALot_But_ReallyHard
4,A+,Didnt_Even_Buy_The_Book
If you're still unsure how to format the grades.txt input file, look at the format when you clone the repo. You will find an example of what 2 semesters worth of classes look like as input as well as output in gpa.txt.
- Incorporate some type of PDF parsing for transcripts to relieve need for csv input file... possibly using PyOCR?
- Make available online