Issue #20189: Four additional builtin types (PyTypeObject,

PyMethodDescr_Type, _PyMethodWrapper_Type, and PyWrapperDescr_Type)
have been modified to provide introspection information for builtins.
Also: many additional Lib, test suite, and Argument Clinic fixes.

1 files changed, 10 insertions, 3 deletions

diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index 9f62692..cf164cc 100755
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -925,7 +925,10 @@ class HTMLDoc(Doc):
                 anchor, name, reallink)
         argspec = None
         if inspect.isfunction(object) or inspect.isbuiltin(object):
-            signature = inspect.signature(object)
+            try:
+                signature = inspect.signature(object)
+            except (ValueError, TypeError):
+                signature = None
             if signature:
                 argspec = str(signature)
                 if realname == '<lambda>':
@@ -1319,8 +1322,12 @@ location listed above.
                 skipdocs = 1
             title = self.bold(name) + ' = ' + realname
         argspec = None
-        if inspect.isfunction(object) or inspect.isbuiltin(object):
-            signature = inspect.signature(object)
+
+        if inspect.isroutine(object):
+            try:
+                signature = inspect.signature(object)
+            except (ValueError, TypeError):
+                signature = None
             if signature:
                 argspec = str(signature)
                 if realname == '<lambda>':