From 2669a9ce402192bf593c20505f6ee80e6a8e79ba Mon Sep 17 00:00:00 2001
From: Hagen Wierstorf <hwierstorf@audeering.com>
Date: Fri, 17 Jan 2025 19:02:55 +0100
Subject: [PATCH] Revert "Remove more typing"

This reverts commit d5c39ca5bafd6bffff624cdcb1f53605e791bf8a.
---
 audformat/core/column.py |  2 +-
 audformat/core/typing.py | 45 ++++++++++++++++++++++------------------
 2 files changed, 26 insertions(+), 21 deletions(-)

diff --git a/audformat/core/column.py b/audformat/core/column.py
index 7cfc0f2f..d4d90574 100644
--- a/audformat/core/column.py
+++ b/audformat/core/column.py
@@ -1,4 +1,4 @@
-from __future__ import annotations
+from __future__ import annotations  # allow typing without string
 
 import typing
 import warnings
diff --git a/audformat/core/typing.py b/audformat/core/typing.py
index ab1c00e2..08217e25 100644
--- a/audformat/core/typing.py
+++ b/audformat/core/typing.py
@@ -1,27 +1,32 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
+import typing
 
 import numpy as np
 import pandas as pd
 
 
-Files = str | Sequence[str] | pd.Index | pd.Series
-Timestamps = (
-    float
-    | int
-    | str
-    | pd.Timedelta
-    | Sequence[float | int | str | pd.Timedelta]
-    | pd.Index
-    | pd.Series
-)
-Values = (
-    int
-    | float
-    | str
-    | pd.Timedelta
-    | Sequence[int | float | str | pd.Timedelta]
-    | np.ndarray
-    | pd.Series
-)
+Files = typing.Union[
+    str,
+    typing.Sequence[str],
+    pd.Index,
+    pd.Series,
+]
+Timestamps = typing.Union[
+    float,
+    int,
+    str,
+    pd.Timedelta,
+    typing.Sequence[typing.Union[float, int, str, pd.Timedelta]],
+    pd.Index,
+    pd.Series,
+]
+Values = typing.Union[
+    int,
+    float,
+    str,
+    pd.Timedelta,
+    typing.Sequence[typing.Union[int, float, str, pd.Timedelta],],
+    np.ndarray,
+    pd.Series,
+]