Update

Author: yushan8

gazelle/python/generate.go

@@ -513,7 +513,6 @@ func (py *Python) getRulesWithInvalidSrcs(args language.GenerateArgs) (invalidRu
 				break
 			}
 		}
-		// If all srcs are invalid, delete the rule.
 		if allInvalidSrcs {
 			invalidRules = append(invalidRules, newTargetBuilder(existingRule.Kind(), existingRule.Name(), args.Config.RepoRoot, args.Rel, nil).build())
 		}

gazelle/python/kinds.go

@@ -70,6 +70,7 @@ var pyKinds = map[string]rule.KindInfo{
 		MatchAny: false,
 		NonEmptyAttrs: map[string]bool{
 			"deps":    true,
+			"main":    true,
 			"srcs":    true,
 			"imports": true,
 		},