bpo-36401: Have help() show readonly properties separately (GH-12517)

1 files changed, 6 insertions, 0 deletions

diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index daa7205bd7..2f570e4dc5 100644
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -203,6 +203,8 @@ def classify_class_attrs(object):
     for (name, kind, cls, value) in inspect.classify_class_attrs(object):
         if inspect.isdatadescriptor(value):
             kind = 'data descriptor'
+            if isinstance(value, property) and value.fset is None:
+                kind = 'readonly property'
         results.append((name, kind, cls, value))
     return results
 
@@ -884,6 +886,8 @@ class HTMLDoc(Doc):
                           lambda t: t[1] == 'class method')
             attrs = spill('Static methods %s' % tag, attrs,
                           lambda t: t[1] == 'static method')
+            attrs = spilldescriptors("Readonly properties %s:\n" % tag, attrs,
+                                     lambda t: t[1] == 'readonly property')
             attrs = spilldescriptors('Data descriptors %s' % tag, attrs,
                                      lambda t: t[1] == 'data descriptor')
             attrs = spilldata('Data and other attributes %s' % tag, attrs,
@@ -1341,6 +1345,8 @@ location listed above.
                           lambda t: t[1] == 'class method')
             attrs = spill("Static methods %s:\n" % tag, attrs,
                           lambda t: t[1] == 'static method')
+            attrs = spilldescriptors("Readonly properties %s:\n" % tag, attrs,
+                                     lambda t: t[1] == 'readonly property')
             attrs = spilldescriptors("Data descriptors %s:\n" % tag, attrs,
                                      lambda t: t[1] == 'data descriptor')
             attrs = spilldata("Data and other attributes %s:\n" % tag, attrs,