Everything is an object and has a `__class__` in Python 3

IPython/core/oinspect.py

@@ -182,11 +182,10 b" def getsource(obj, oname='') -> Union[str,None]:"
         except TypeError:
             # The object itself provided no meaningful source, try looking for
             # its class definition instead.
-            if hasattr(obj, '__class__'):
-                try:
-                    src = inspect.getsource(obj.__class__)
-                except TypeError:
-                    return None
+            try:
+                src = inspect.getsource(obj.__class__)
+            except TypeError:
+                return None
 
         return src
 
@@ -308,15 +307,14 b' def find_file(obj) -> str:'
     fname = None
     try:
         fname = inspect.getabsfile(obj)
-    except (OSError, TypeError):
+    except TypeError:
         # For an instance, the file that matters is where its class was
         # declared.
-        if hasattr(obj, '__class__'):
-            try:
-                fname = inspect.getabsfile(obj.__class__)
-            except (OSError, TypeError):
-                # Can happen for builtins
-                pass
+        try:
+            fname = inspect.getabsfile(obj.__class__)
+        except (OSError, TypeError):
+            # Can happen for builtins
+            pass
     except:
         pass
     return cast_unicode(fname)
@@ -345,10 +343,7 b' def find_source_lines(obj):'
             lineno = inspect.getsourcelines(obj)[1]
         except TypeError:
             # For instances, try the class object like getsource() does
-            if hasattr(obj, '__class__'):
-                lineno = inspect.getsourcelines(obj.__class__)[1]
-            else:
-                lineno = None
+            lineno = inspect.getsourcelines(obj.__class__)[1]
     except:
         return None