fix(python): python3 compatibility

api/requirements.txt

@@ -1,14 +1,14 @@
 Django==1.10.3
-MySQL-python==1.2.5
+mysqlclient==1.3.9
 Pygments==2.0.1
 argparse==1.2.1
 cffi==1.9.1
 coverage==3.7.1
 cryptography==1.5.3
 djangorestframework==3.5.3
-djoser==0.1.0
-dnspython==1.12.0
-enum34==1.0.4
+djoser==0.5.1
+dnspython==1.15.0
+enum34==1.1.6
 httpretty==0.8.10
 idna==2.0
 ipaddress==1.0.7
@@ -17,4 +17,4 @@ pyasn1==0.1.7
 pycparser==2.13
 requests==2.7.0
 six==1.9.0
-wsgiref==0.1.2
+uwsgi==2.0.14