diff options
| -rw-r--r-- | morphlib/util.py | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/morphlib/util.py b/morphlib/util.py index 0ec071e4..94b0f4c4 100644 --- a/morphlib/util.py +++ b/morphlib/util.py @@ -767,13 +767,14 @@ class ProgressBar(object): self._empty_char = empty_char def show(self, progress): #pragma: no cover - blocks = int(progress / self._block_width); - - s = self.TEMPLATE % (self._label, self._progress_char * blocks, - self._empty_char * (self._width - blocks), - progress, self._expected_size, self._unit) - sys.stderr.write(s) - sys.stderr.flush() + if sys.stderr.isatty(): + blocks = int(progress / self._block_width); + + s = self.TEMPLATE % (self._label, self._progress_char * blocks, + self._empty_char * (self._width - blocks), + progress, self._expected_size, self._unit) + sys.stderr.write(s) + sys.stderr.flush() def schemas_directory(): # pragma: no cover |