def execute_pipeline():
"""
Executes and calls all necessary functions to run the program.
:return:
"""
api_key = get_api_key()
# create datastore
ds = DataStore()
# read csv files
ds.read_practices_from_csv_file("data/practices.csv")
ds.read_students_from_csv_file("data/students.csv")
# # create address combination file
ds.create_address_csv_file()
# fetch distance and duration from Google API
GoogleAPI(api_key=api_key).fetch_distances_from_api('data/addresses.csv')
# create all weight combination file
weight_df = weight_combination.create_all_weight_combinations(ds)
# extract best possible weight combinations
weight_combination.extract_best_weights_students(ds, weight_df)
