I wonder how many of those are CI systems creating a disposable test environment (or several disposable test environments) to test a single software change.
Might also consider how many times it is downloaded and never used, because it is a dependency in another project. There are a number of projects using boto just for the S3 compatibility layer too
I wonder how many of those are CI systems creating a disposable test environment (or several disposable test environments) to test a single software change.