Vanilla install requires geojson and geopandas

[dtasgaon]

The readme suggests that the geojson and geopandas dependencies are only for testing.

However, when I install using pip install topojson, and then import and use the library, I run into dependency issues. Did I misunderstand the dependencies?

Traceback (most recent call last):
  File "geography.py", line 9, in <module>
    import topojson
  File "/Users/deven/projects/instant/venv/lib/python3.6/site-packages/topojson/__init__.py", line 4, in <module>
    from .extract import extract
  File "/Users/deven/projects/instant/venv/lib/python3.6/site-packages/topojson/extract.py", line 17, in <module>
    class Extract:
  File "/Users/deven/projects/instant/venv/lib/python3.6/site-packages/topojson/extract.py", line 190, in Extract
    @serialize_geom_type.register(geojson.FeatureCollection)
NameError: name 'geojson' is not defined

I installed geojson once I saw the above error. Then I received the following error:

Traceback (most recent call last):
  File "geography.py", line 9, in <module>
    import topojson
  File "/Users/deven/projects/instant/venv/lib/python3.6/site-packages/topojson/__init__.py", line 4, in <module>
    from .extract import extract
  File "/Users/deven/projects/instant/venv/lib/python3.6/site-packages/topojson/extract.py", line 17, in <module>
    class Extract:
  File "/Users/deven/projects/instant/venv/lib/python3.6/site-packages/topojson/extract.py", line 233, in Extract
    @serialize_geom_type.register(geopandas.GeoDataFrame)
NameError: name 'geopandas' is not defined

Given that geopandas has quite a few dependencies, I figured I'll check first if I'm doing this right.

Would greatly appreciate any guidance. Thanks!!

[mattijn]

Thanks for raising the issue!

You are right. I tried to avoid the need of installing of both geojson and geopandas, since especially geopandas has a lot of dependencies that are not easy to install on windows.

In #5 I have addressed this issue and with the next release this dependency issue should be solved.