py3: Finish porting func tests

We were (indirectly) importing swiftclient (and therefore requests and
urllib3) before doing our eventlet monkey-patching. This would lead
boto3 (which digs an SSLContext out of urllib3) to trip RecursionErrors
on py3 similar to

   >>> from ssl import SSLContext, PROTOCOL_SSLv23
   >>> import eventlet
   >>> eventlet.monkey_patch(socket=True)
   >>> SSLContext(PROTOCOL_SSLv23).options |= 0
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
     File "/usr/lib/python3.6/ssl.py", line 465, in options
       super(SSLContext, SSLContext).options.__set__(self, value)
     File "/usr/lib/python3.6/ssl.py", line 465, in options
       super(SSLContext, SSLContext).options.__set__(self, value)
     File "/usr/lib/python3.6/ssl.py", line 465, in options
       super(SSLContext, SSLContext).options.__set__(self, value)
     [Previous line repeated 330 more times]
   RecursionError: maximum recursion depth exceeded while calling a Python object

Change-Id: I4bb59edd87336597791416c4f2a096efe0e72fe3

test/functional/__init__.py

@@ -43,8 +43,6 @@ from swift.common.storage_policy import parse_storage_policies, PolicyError
 from swift.common.utils import set_swift_dir
 
 from test import get_config, listen_zero
-from test.functional.swift_test_client import Account, Connection, Container, \
-    ResponseError
 
 from test.unit import debug_logger, FakeMemcache
 # importing skip_if_no_xattrs so that functional tests can grab it from the
@@ -75,6 +73,10 @@ eventlet.hubs.use_hub(utils.get_hub())
 eventlet.patcher.monkey_patch(all=False, socket=True)
 eventlet.debug.hub_exceptions(False)
 
+# swift_test_client import from swiftclient, so move after the monkey-patching
+from test.functional.swift_test_client import Account, Connection, Container, \
+    ResponseError
+
 from swiftclient import get_auth, http_connection
 
 has_insecure = False

tox.ini

@@ -46,48 +46,29 @@ commands = ./.functests {posargs}
 
 [testenv:func-py3]
 basepython = python3
-commands =
+commands = ./.functests {posargs}
-  nosetests {posargs: \
-    test/functional/s3api/test_acl.py \
-    test/functional/s3api/test_multi_delete.py \
-    test/functional/s3api/test_multi_upload.py \
-    test/functional/s3api/test_object.py \
-    test/functional/s3api/test_presigned.py \
-    test/functional/s3api/test_service.py \
-    test/functional/test_access_control.py \
-    test/functional/test_account.py \
-    test/functional/test_container.py \
-    test/functional/test_dlo.py \
-    test/functional/test_domain_remap.py \
-    test/functional/test_object.py \
-    test/functional/test_slo.py \
-    test/functional/test_staticweb.py \
-    test/functional/test_symlink.py \
-    test/functional/test_tempurl.py \
-    test/functional/test_versioned_writes.py \
-    test/functional/tests.py}
 
 [testenv:func-ec-py3]
 basepython = python3
-commands = {[testenv:func-py3]commands}
+commands = ./.functests {posargs}
 setenv = SWIFT_TEST_IN_PROCESS=1
          SWIFT_TEST_IN_PROCESS_CONF_LOADER=ec
 
 [testenv:func-s3api-py3]
 basepython = python3
-commands = {[testenv:func-py3]commands}
+commands = ./.functests {posargs}
 setenv = SWIFT_TEST_IN_PROCESS=1
          SWIFT_TEST_IN_PROCESS_CONF_LOADER=s3api
 
 [testenv:func-encryption-py3]
 basepython = python3
-commands = {[testenv:func-py3]commands}
+commands = ./.functests {posargs}
 setenv = SWIFT_TEST_IN_PROCESS=1
          SWIFT_TEST_IN_PROCESS_CONF_LOADER=encryption
 
 [testenv:func-domain-remap-staticweb-py3]
 basepython = python3
-commands = {[testenv:func-py3]commands}
+commands = ./.functests {posargs}
 setenv = SWIFT_TEST_IN_PROCESS=1
          SWIFT_TEST_IN_PROCESS_CONF_LOADER=domain_remap_staticweb