reconcile.helper: Add entry_point to avoid traceback

conservancy_beancount/reconcile/helper.py

@@ -114,7 +114,7 @@ def reconciliation_report_path(account, end_date):
     return f'Financial/Controls/Reports-for-Treasurer/{end_date}_{account_name}_bank-reconciliation.csv'
 
 
-def parse_args():
+def parse_args(argv):
     parser = argparse.ArgumentParser(description='Reconciliation helper')
     parser.add_argument('--beancount-file', required=True)
     parser.add_argument('--account', help='Full account name, e.g. "Liabilities:CreditCard:AMEX"', required=True)
@@ -126,7 +126,7 @@ def parse_args():
     parser.add_argument('--cost-function', default='COST')
     parser.add_argument('--grep-output-filename')
     # parser.add_argument('--report-group-regex')
-    args = parser.parse_args()
+    args = parser.parse_args(args=argv[1:])
     if args.month or args.period:
         if not (args.month and args.period):
             parser.error('--month and --period must be used together')
@@ -140,7 +140,7 @@ def beancount_file_exists(path):
     return os.path.isfile(path)
 
 
-args = parse_args()
+def main(args):
     if not beancount_file_exists(args.beancount_file):
         sys.exit(f'Beancount file does not exist: {args.beancount_file}')
     if args.month or args.period:
@@ -245,3 +245,13 @@ report_path = os.path.join(os.getenv('CONSERVANCY_REPOSITORY', ''), reconciliati
     with open(report_path, 'w') as f:
         f.write(reconciliation_report(account, lastDateInPeriod, cleared_balance, uncleared, '1900-01-01', all_trans_balance, []))
     print(f'Wrote reconciliation report: {report_path}.')
+
+
+if __name__ == '__main__':
+    args = parse_args(sys.argv)
+    main(args)
+
+
+def entry_point():
+    args = parse_args(sys.argv)
+    main(args)