PR for issue #99 and issue #100

[zufuliu]

PR for issue #99 and issue #100.

[naiquevin]

First of all, sorry for a very late reply! Finally got around to looking at the PRs on this project.

Regarding #99 : I think just making the pkg.key lowercase will not solve the problem because the dump_graphviz function is using project_name attribute to identify graph nodes instead of key. I think a simple fix is to use key as the id for the graph node in the dump_graphviz function. It's also a "safer" solution as it won't affect rest of the code at all.

Regarding #100 : Looks good to me.

[naiquevin]

Also, don't worry about the tests. I'm working on fixing the tests in another branch. In the meanwhile, I'll manually make sure that the tests pass before merging the PR.

[zufuliu]

OK, I will make rebase the code and make separate PRs later.

[gaborbernat]

Closing as this seems to have stalled.