API for Python 1.5.1 & 1.5.2: arcgis.geometry.Polygon.is_valid() method for polygons does not work

[lukasbug]

Hello,
we use ArcGIS API for Python in a project and encountered the following problem:

In ArcGIS API for Python 1.5.1 the boolean type property "is_valid" of geometries of type Polygon was removed and replaced by a method. This method is_valid() does not work like the boolean property in the previous versions. It throws an error for valid Polygon geometries as shown below:

In ArcGIS API for Python 1.5.0 the boolean type attribute worked well:

Do you have an idea how to work around this problem ?

Best regards,
Lukas Bug
Student assistant at Esri Deutschland

[lukasbug]

I prepared two jupyter notebooks to be able to reproduce this issue. You will find them in the following zip file (Unfortunately Jupyter Notebooks are not supported as a file type on Git):

is_valid_issue.zip

[lukasbug]

Documentation mentions it in the GeoSeriesAccessor section and return type should be boolean True or False:

https://esri.github.io/arcgis-python-api/apidoc/html/arcgis.features.toc.html?highlight=is_valid#arcgis.features.GeoSeriesAccessor.is_valid

[achapkowski]

@lukasbug I'll take a look today.

[lukasbug]

@achapkowski Have you any news on this issue ?

[bixb0012]

@achapkowski , look at lines 22, 64, 79, and 80 in geometry/_types.py. Someone wrote bad type checks involving variables that are never defined in the module: list_types, number_type .

[achapkowski]

It will be fixed in the next release.