From 45335e853cf55a0a7fd9668eed4bdd98fc106f2e Mon Sep 17 00:00:00 2001
From: David Stansby <dstansby@gmail.com>
Date: Thu, 27 Sep 2018 12:42:54 +0100
Subject: [PATCH] Backport PR #12274: MNT: put back `_hold` as read-only
 attribute on AxesBase

---
 lib/matplotlib/axes/_base.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/matplotlib/axes/_base.py b/lib/matplotlib/axes/_base.py
index 01d6add25184..00457a29dfb8 100644
--- a/lib/matplotlib/axes/_base.py
+++ b/lib/matplotlib/axes/_base.py
@@ -402,6 +402,10 @@ class _AxesBase(martist.Artist):
     _shared_y_axes = cbook.Grouper()
     _twinned_axes = cbook.Grouper()
 
+    @property
+    def _hold(self):
+        return True
+
     def __str__(self):
         return "{0}({1[0]:g},{1[1]:g};{1[2]:g}x{1[3]:g})".format(
             type(self).__name__, self._position.bounds)