Removed buggy assertion. Updated version info.

py_tools_ds/__init__.py

 # -*- coding: utf-8 -*-
 from __future__ import (division, print_function, absolute_import, unicode_literals)
 
-__version__ = '0.12.3'
-__versionalias__ = '20171120_02'
+__version__ = '0.12.4'
+__versionalias__ = '20171120_03'
 __author__ = 'Daniel Scheffler'
 
 # Validate GDAL version

py_tools_ds/processing/progress_mon.py

@@ -61,8 +61,6 @@ class ProgressBar(object):
 
         http://stackoverflow.com/questions/3173320/text-progress-bar-in-the-console
         """
-        assert out in [sys.stdout, sys.stderr]
-
         self.prefix = prefix
         self.suffix = suffix
         self.decimals = decimals

setup.py

@@ -18,7 +18,7 @@ test_requirements = requirements + ["coverage", "nose", "nose2", "nose-htmloutpu
 
 setup(
     name='py_tools_ds',
-    version='0.12.3',
+    version='0.12.4',
     description="A collection of Python tools by Daniel Scheffler.",
     long_description=readme + '\n\n' + history,
     author="Daniel Scheffler",