write workaround for #19231

sagemath · Sep 20, 2015 · 4b8f9be · 4b8f9be
1 parent c8309c5
commit 4b8f9be
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/sage/symbolic/subring.py b/src/sage/symbolic/subring.py
@@ -317,9 +317,13 @@ def _coerce_map_from_(self, P):
             True
             sage: C.has_coerce_map_from(QQbar)  # indirect doctest
             True
-            sage: C.has_coerce_map_from(SR)  # indirect doctest  # not tested see #19231
+            sage: C.has_coerce_map_from(SR)  # indirect doctest
             False
         """
+        if P == SR:
+            # Workaround; can be deleted once #19231 is fixed
+            return False
+
         from sage.rings.real_mpfr import mpfr_prec_min
         from sage.rings.all import (ComplexField,
                                     RLF, CLF, AA, QQbar, InfinityRing)