Implementation of database two-phase locking protocol for concurrency control using Python.

Type this command in the terminal to run the program:

python3 main.py -f "file_path" 

python3 main.py -f "tests/input1.txt" 

Example inputs are included in tests folder. The input format are the operations separated by semicolon, where each operation consists of an operation, transaction id, and data item (eg. R1(X): reading data item x in transaction 1)