Packages that share a top-level module name are never marked as obsolete if one of them is used.

[fpgmaas]

If packages share a top-level module name, they are never marked as obsolete if one of them is used.

An example; google-cloud-bigquery and google-cloud-auth share a top-level name; google, which is found in their metadata's top_level.txt. They are imported as google.cloud.bigquery and google.cloud.auth.

deptry recognizes that there is an imported module google but it has no metadata. Therefore, for each of the google-cloud-* packages, it will see if any of the top-level module names are imported. Each has top-level module name google, so if anywhere in the code there is anything imported fromgoogle, all google-cloud-* packaged are marked as not obsolete.

See also #5 for the prior issue with google packages.