fix _log_operation_start to work with non-string operation arguments
@@ -213,7 +213,7 @@ def _log_operation_start(op_meta):
args = ''
if op_meta['args']:
- args = '({0})'.format(', '.join(arg for arg in op_meta['args']))
+ args = '({0})'.format(', '.join(str(arg) for arg in op_meta['args']))
logger.info('{0} {1} {2}'.format(
click.style('--> Starting{0}operation:'.format(
