Merge pull request #9430 from matplotlib/auto-backport-of-pr-9428

dstansby · web-flow · commit a0878c704fc8 · 2017-10-16T16:01:27.000+01:00
Backport PR #9428 on branch v2.1.x
diff --git a/lib/matplotlib/mathtext.py b/lib/matplotlib/mathtext.py
@@ -1838,7 +1838,7 @@ def __init__(self, glue_type, copy=False):
         elif isinstance(glue_type, GlueSpec):
             glue_spec = glue_type
         else:
-            raise ArgumentError("glue_type must be a glue spec name or instance.")
+            raise ValueError("glue_type must be a glue spec name or instance.")
         if copy:
             glue_spec = glue_spec.copy()
         self.glue_spec      = glue_spec
