[MAINT] AttributeError: 'NoneType' object has no attribute 'startswith' in all Moran plots #117
Description
ERROR: test_viz_esda_mpl.test_moran_scatterplot
1551----------------------------------------------------------------------
1552Traceback (most recent call last):
1553 File "/home/travis/build/pysal/splot/miniconda/envs/test-env/lib/python3.6/site-packages/nose/case.py", line 198, in runTest
1554 self.test(*self.arg)
1555 File "/home/travis/build/pysal/splot/splot/tests/test_viz_esda_mpl.py", line 28, in test_moran_scatterplot
1556 gdf = gpd.read_file(link_to_data)
1557 File "/home/travis/build/pysal/splot/miniconda/envs/test-env/lib/python3.6/site-packages/geopandas/io/file.py", line 96, in _read_file
1558 with reader(path_or_bytes, **kwargs) as features:
1559 File "/home/travis/build/pysal/splot/miniconda/envs/test-env/lib/python3.6/site-packages/fiona/env.py", line 400, in wrapper
1560 return f(*args, **kwargs)
1561 File "/home/travis/build/pysal/splot/miniconda/envs/test-env/lib/python3.6/site-packages/fiona/__init__.py", line 253, in open
1562 path = parse_path(fp)
1563 File "/home/travis/build/pysal/splot/miniconda/envs/test-env/lib/python3.6/site-packages/fiona/path.py", line 132, in parse_path
1564 elif path.startswith('/vsi'):
1565AttributeError: 'NoneType' object has no attribute 'startswith'
investigate and decide if this can be debugged by PySAL team or needs to be brought to attention with another issue in the Fiona GitHub repo.