Add Gravatar support

[jayvdb]

Gravatar supports profile usernames.

[seeeturtle]

this issue is related with getting profile image of openhub since it set profile image as gravatar.

[pavi2410]

I can do this. I claimed this task on GCI.

[jayvdb]

@pavi2410 , great, come onto https://coala.zulipchat.com/#narrow/stream/gci/subject/username-availability if you need a hand

[pavi2410]

Is it OK if I parse the user page to get avatar image?

[jayvdb]

It is ok if you parse the page to get the avatar, but isnt ideal.
Ideally we use the gravatar API, but that can be done in a different task.
See pypi for some packages which may help.

[pavi2410]

Let's start from first. What should I do? The issue doesn't describe the problem

[manu-chroma]

Check:
#72 (comment)
#72 (comment)

you need to fix your commit message and I think we will be able to merge then.

[pavi2410]

Should I add a method to fetch gravatar image from username? If it succeeds, then return the gravatar image, else scrape the image. But we cannot guarantee that a single person has the same username in different services. For eg, if a person A has username XYZ in open hub, but the same username on gravatar is of person B.

[manu-chroma]

what you've done is good to go for now. just fix the commit message to include the issues you addressed. #74 (comment)

But we cannot guarantee that a single person has the same username in different services. For eg, if a person A has username XYZ in open hub, but the same username on gravatar is of person B.

that's is why we won't be doing this. integrating gravatar's from https://en.gravatar.com/ will be considered in a separate issue.