From e29d9b1bfa7f3377cd62ecf0c5aa8fea34597f05 Mon Sep 17 00:00:00 2001
From: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>
Date: Mon, 24 Jan 2022 23:47:25 +0100
Subject: [PATCH] Backport PR #22306: FIX: ensure that used sub-packages are
 actually imported

---
 lib/matplotlib/ticker.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py
index 3608dd062190..489cfbe8adc4 100644
--- a/lib/matplotlib/ticker.py
+++ b/lib/matplotlib/ticker.py
@@ -441,8 +441,9 @@ def __init__(self, useOffset=None, useMathText=None, useLocale=None):
             useMathText = mpl.rcParams['axes.formatter.use_mathtext']
             if useMathText is False:
                 try:
-                    ufont = mpl.font_manager.findfont(
-                        mpl.font_manager.FontProperties(
+                    from matplotlib import font_manager
+                    ufont = font_manager.findfont(
+                        font_manager.FontProperties(
                             mpl.rcParams["font.family"]
                         ),
                         fallback_to_default=False,