Register decimals as numbers.Number

1 files changed, 7 insertions, 0 deletions

diff --git a/Lib/decimal.py b/Lib/decimal.py
index 661d6ed..3ad80b3 100644
--- a/Lib/decimal.py
+++ b/Lib/decimal.py
@@ -135,6 +135,7 @@ __all__ = [
 ]
 
 import copy as _copy
+import numbers as _numbers
 
 try:
     from collections import namedtuple as _namedtuple
@@ -3567,6 +3568,12 @@ def _dec_from_triple(sign, coefficient, exponent, special=False):
 
     return self
 
+# Register Decimal as a kind of Number (an abstract base class).
+# However, do not register it as Real (because Decimals are not
+# interoperable with floats).
+_numbers.Number.register(Decimal)
+
+
 ##### Context class #######################################################