Put correct version in constrained layout tutorial

dstansby · dstansby · commit 6930821de249 · 2019-01-29T12:39:19.000Z
diff --git a/tutorials/intermediate/constrainedlayout_guide.py b/tutorials/intermediate/constrainedlayout_guide.py
@@ -1,3 +1,5 @@
+import matplotlib
+
 """
 ================================
 Constrained Layout Guide
@@ -30,7 +32,7 @@
 
 .. warning::
 
-    As of Matplotlib 2.2, Constrained Layout is **experimental**.  The
+    As of Matplotlib {version}, Constrained Layout is **experimental**.  The
     behaviour and API are subject to change, or the whole functionality
     may be removed without a deprecation period.  If you *require* your
     plots to be absolutely reproducible, get the Axes positions after
@@ -45,7 +47,7 @@
 titles (or sometimes even ticklabels) go outside the figure area, and are thus
 clipped.
 
-"""
+""".format(version=matplotlib.__version__)
 
 # sphinx_gallery_thumbnail_number = 18
 
