fix: no implicit optional (#7984)

2022-11-15 19:25:14 +05:30
parent 316e71b034
commit 3bf86b91e7
6 changed files with 6 additions and 6 deletions
--- a/machine_learning/linear_discriminant_analysis.py
+++ b/machine_learning/linear_discriminant_analysis.py
@@ -256,7 +256,7 @@ def valid_input(
    input_msg: str,
    err_msg: str,
    condition: Callable[[num], bool] = lambda x: True,
-    default: str = None,
+    default: str | None = None,
 ) -> num:
    """
    Ask for user value and validate that it fulfill a condition.