def process_csv(input_file): with open(input_file, 'r', encoding='utf-8', newline='') as csvfile: reader = csv.reader(csvfile) headers = next(reader) num_cols = len(headers)
if num_cols % 2!= 1: raise ValueError("The total number of columns in the CSV should be odd, as the first column is the primary key column and not included in the data operations.")
print(f"Primary key column: {primary_key_column}") print("Correspondence between columns:") for a_header, b_header in zip(set_a_cols, set_b_cols): print(f"{a_header} corresponds to {b_header}")
confirmation = input("Do you want to continue? (yes/no): ") if confirmation.lower()!= "yes": print("Operation aborted.") return