The django.db.backends.postgresql_psycopg2 module is deprecated in favor of django.db.backends.postgresql. It’s been an alias since Django 1.9

.travis/postgresql_settings.py

@@ -40,7 +40,7 @@ SERVERNAME = "testing_mygame"
 
 DATABASES = {
     "default": {
-        "ENGINE": "django.db.backends.postgresql_psycopg2",
+        "ENGINE": "django.db.backends.postgresql",
         "NAME": "evennia",
         "USER": "evennia",
         "PASSWORD": "password",

evennia/settings_default.py

@@ -245,7 +245,7 @@ IN_GAME_ERRORS = True
 # ENGINE - path to the the database backend. Possible choices are:
 #            'django.db.backends.sqlite3', (default)
 #            'django.db.backends.mysql',
-#            'django.db.backends.postgresql_psycopg2',
+#            'django.db.backends.postgresql',
 #            'django.db.backends.oracle' (untested).
 # NAME - database name, or path to the db file for sqlite3
 # USER - db admin (unused in sqlite3)

evennia/typeclasses/migrations/0010_delete_old_player_tables.py

@@ -27,7 +27,7 @@ def _drop_table(db_cursor, table_name):
             db_cursor.execute("SET FOREIGN_KEY_CHECKS=0;")
             db_cursor.execute("DROP TABLE {table};".format(table=table_name))
             db_cursor.execute("SET FOREIGN_KEY_CHECKS=1;")
-        elif _ENGINE == "postgresql_psycopg2":
+        elif _ENGINE == "postgresql":
             db_cursor.execute("ALTER TABLE {table} DISABLE TRIGGER ALL;".format(table=table_name))
             db_cursor.execute("DROP TABLE {table};".format(table=table_name))
             db_cursor.execute("ALTER TABLE {table} ENABLE TRIGGER ALL;".format(table=table_name))

evennia/utils/picklefield.py

@@ -268,7 +268,7 @@ class PickledObjectField(models.Field):
         """
         if value is not None and not isinstance(value, PickledObject):
             # We call force_str here explicitly, so that the encoded string
-            # isn't rejected by the postgresql_psycopg2 backend. Alternatively,
+            # isn't rejected by the postgresql backend. Alternatively,
             # we could have just registered PickledObject with the psycopg
             # marshaller (telling it to store it like it would a string), but
             # since both of these methods result in the same value being stored,

evennia/utils/utils.py

@@ -1036,7 +1036,7 @@ def uses_database(name="sqlite3"):
     shortcut to having to use the full backend name.
 
     Args:
-        name (str): One of 'sqlite3', 'mysql', 'postgresql_psycopg2'
+        name (str): One of 'sqlite3', 'mysql', 'postgresql'
         or 'oracle'.
 
     Returns: