Import from urllib and not url (#25102)

* Import from urllib and not url

In Python 3, the correct way to import
urlparse is through urllib.parse.

* Use six module to import urlparse

Import urlparse from ansible.module_utils.six.
This way, the import statement is compatible both
with Python 3 and Python 2.

* Fix urlparse import using six module

The correct import is:
from six.moves.urllib.parse import urlparse

* Import six from ansible.compat

* Import from six.moves. Don't make six global.

Prevent code smell by not making six available
in the global namespace and instead importing from
one of its subpackages.

lib/ansible/module_utils/lxd.py

@@ -27,6 +27,9 @@
 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 # USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+from ansible.module_utils.urls import generic_urlparse
+from ansible.module_utils.six.moves.urllib.parse import urlparse
+
 try:
     import json
 except ImportError:
@@ -51,13 +54,6 @@ class UnixHTTPConnection(HTTPConnection):
         sock.connect(self.path)
         self.sock = sock
 
-from ansible.module_utils.urls import generic_urlparse
-try:
-    from urlparse import urlparse
-except ImportError:
-    # Python 3
-    from url.parse import urlparse
-
 class LXDClientException(Exception):
     def __init__(self, msg, **kwargs):
         self.msg = msg