| #!/usr/bin/env python |
| # Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Selects the appropriate scraper for a given browser and version.""" |
| |
| import types |
| |
| # TODO(jhaas): unify all optional scraper parameters into kwargs |
| |
| def GetScraper(browser): |
| """Given a browser and an optional version, returns the scraper module. |
| |
| Args: |
| browser: either a string (browser name) or a tuple (name, version) |
| |
| Returns: |
| module |
| """ |
| |
| if type(browser) == types.StringType: browser = (browser, None) |
| |
| package = __import__(browser[0], globals(), locals(), ['']) |
| module = package.GetScraper(browser[1]) |
| if browser[1] is not None: module.version = browser[1] |
| |
| return module |
| |
| |
| # if invoked rather than imported, do some tests |
| if __name__ == "__main__": |
| print GetScraper("IE") |
