Move vendored libraries to vendor directory

vendor/sqlalchemy/testing/__init__.py

@@ -0,0 +1,22 @@
+from __future__ import absolute_import
+
+from .warnings import testing_warn, assert_warnings, resetwarnings
+
+from . import config
+
+from .exclusions import db_spec, _is_excluded, fails_if, skip_if, future,\
+    fails_on, fails_on_everything_except, skip, only_on, exclude, against,\
+    _server_version, only_if
+
+from .assertions import emits_warning, emits_warning_on, uses_deprecated, \
+        eq_, ne_, is_, is_not_, startswith_, assert_raises, \
+        assert_raises_message, AssertsCompiledSQL, ComparesTables, \
+        AssertsExecutionResults
+
+from .util import run_as_contextmanager, rowset, fail, provide_metadata, adict
+
+crashes = skip
+
+from .config import db, requirements as requires
+
+from . import mock