use itemgetter to sort list of available modules

pmodules_tools/db_diff/check.py

@@ -6,6 +6,7 @@ import re
 import shutil
 
 from datetime import date, datetime, timedelta
+from operator import itemgetter, attrgetter
 from pytablewriter import AsciiDocTableWriter
 
 
@@ -101,7 +102,7 @@ def db_check_diff(current_pmodule_state, Pmodules_db_path, Pmodules_states):
         )
         old_db = set(" ".join(i.split()) for i in old_pmodule_state.splitlines())
         all_module_list = list(current_db)
-        all_module_list = sorted(all_module_list, key=lambda row: row[0])
+        all_module_list = sorted(all_module_list, key=itemgetter(0))
 
         # We have to check the differences between the pmodule states.
         if compare_states_sha(current_pmodule_state, old_pmodule_state, current_sha):