Recently the search fail because of to many attempts:
```
======================================================================
ERROR: Test the site.search() method.
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/travis/build/xZise/pywikibot-core/tests/site_tests.py", line 1251, in testSearch
se = list(mysite.search("wiki", total=100))
File "/home/travis/build/xZise/pywikibot-core/pywikibot/data/api.py", line 2717, in __iter__
self.data = self.request.submit()
File "/home/travis/build/xZise/pywikibot-core/pywikibot/data/api.py", line 1990, in submit
self.wait()
File "/home/travis/build/xZise/pywikibot-core/pywikibot/data/api.py", line 2178, in wait
raise TimeoutError("Maximum retries attempted without success.")
TimeoutError: Maximum retries attempted without success.
```
https://travis-ci.org/xZise/pywikibot-core/jobs/81838559#L975