Update set_password to work on MySQL 8

Author: rly

datajoint/admin.py

@@ -1,5 +1,6 @@
 import pymysql
 from getpass import getpass
+from packaging import version
 from .connection import conn
 from .settings import config
 from .utils import user_choice
@@ -16,7 +17,14 @@ def set_password(new_password=None, connection=None, update_config=None):
         if new_password != confirm_password:
             logger.warn("Failed to confirm the password! Aborting password change.")
             return
-    connection.query("SET PASSWORD = PASSWORD('%s')" % new_password)
+
+    if version.parse(
+        connection.query("select @@version;").fetchone()[0]
+    ) >= version.parse("5.7"):
+        # SET PASSWORD is deprecated as of MySQL 5.7 and removed in 8+
+        connection.query("ALTER USER user() IDENTIFIED BY '%s';" % new_password)
+    else:
+        connection.query("SET PASSWORD = PASSWORD('%s')" % new_password)
     logger.info("Password updated.")
 
     if update_config or (