Adding support for overrides

[demianbrecht]

I have a use case where the 'localhost' value baked in for gethostname is insufficient as the hostname is actually meaningful. This patch provides the capability to override what httpretty patches. Currently, I'm simply mocking the attributes after .enable() is called, but there's something about mocking the mocker that doesn't sit well with me ;) Kinda makes me think that this is something that should be supported.

If there's no opposition to the proposed addition, I'll add the feature to the docs before merge.

[gabrielfalcao]

Hey, first of all, sorry for taking so long to answer.

Secondly, I'm sorry that the CI server build failed, I'll be glad to merge this under 2 conditions:

• The travis build passes
• Also add an alias for your feature:

overrides = {
    'socket': {
        'gethostname': _GETHOSTNAME,
        'gethostbyname': _GETHOSTBYNAME,
        'getaddrinfo': _GETADDRINFO,
    },
}

@httpretty.activate(with_overrides=overrides)
def test_something():
    requests.get("http://whatever.com")