PROPOSAL: show_versions

[snowman2]

Thoughts on adding a show_versions method for simplifying the debug process? This will also help with bug reports.

Additionally, could add --show-versions to the rio CLI.

• Pandas example
• pyproj example

GDAL specific items to add: PROJ version, GEOS version, & data directories.

[sgillies]

@snowman2 I feel like our bigger problem is that GDAL can link dozens of other native libraries and doesn't have an API to show those versions. In my experience that's what users struggle to grasp and struggle to communicate in bug reports. We've got a rio --gdal-version now https://github.com/rasterio/rasterio/blob/master/rasterio/rio/main.py#L76 but it doesn't say anything about the curl or openssh (for example) versions.

[snowman2]

That makes sense. I think exposing available library versions used by GDAL would be a good thing. Here are some I found that GDAL exposes:

• OSRGetPROJVersion
• OGRGetGEOSVersion