matplotlib
diff --git a/‎lib/matplotlib/_mathtext.py
Lines changed: 4 additions & 3 deletions b/‎lib/matplotlib/_mathtext.py
Lines changed: 4 additions & 3 deletions
diff --git a/‎lib/matplotlib/tests/baseline_images/test_mathtext/mathtext_cm_83.pdf
8.82 KB b/‎lib/matplotlib/tests/baseline_images/test_mathtext/mathtext_cm_83.pdf
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diff --git a/‎lib/matplotlib/tests/baseline_images/test_mathtext/mathtext_cm_83.png
1.67 KB b/‎lib/matplotlib/tests/baseline_images/test_mathtext/mathtext_cm_83.png
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diff --git a/‎lib/matplotlib/tests/baseline_images/test_mathtext/mathtext_cm_83.svg
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diff --git a/‎lib/matplotlib/tests/baseline_images/test_mathtext/mathtext_dejavusans_83.pdf
8.35 KB b/‎lib/matplotlib/tests/baseline_images/test_mathtext/mathtext_dejavusans_83.pdf
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diff --git a/‎lib/matplotlib/tests/baseline_images/test_mathtext/mathtext_dejavusans_83.png
1.86 KB b/‎lib/matplotlib/tests/baseline_images/test_mathtext/mathtext_dejavusans_83.png
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@@ -2158,7 +2158,8 @@ def __init__(self):
 
         p.sqrt <<= Group(
             Suppress(Literal(r"\sqrt"))
-            - ((Optional(p.lbracket + p.int_literal + p.rbracket, default=None)
+            - ((Group(Optional(
+                    p.lbracket + OneOrMore(~p.rbracket + p.token) + p.rbracket))
                 + p.required_group)
                | Error("Expected \\sqrt{value}"))
         )
@@ -2864,10 +2865,10 @@ def sqrt(self, s, loc, toks):
 
         # Add the root and shift it upward so it is above the tick.
         # The value of 0.6 is a hard-coded hack ;)
-        if root is None:
+        if not root:
             root = Box(check.width * 0.5, 0., 0.)
         else:
-            root = Hlist([Char(x, state) for x in root])
+            root = Hlist(root)
             root.shrink()
             root.shrink()