diff --git a/jedi/evaluate/compiled/mixed.py b/jedi/evaluate/compiled/mixed.py
index dfb49657..1390ea47 100644
--- a/jedi/evaluate/compiled/mixed.py
+++ b/jedi/evaluate/compiled/mixed.py
@@ -116,8 +116,21 @@ def _load_module(evaluator, path, python_object):
     return module
 
 
+def source_findable(python_object):
+    """Check if inspect.getfile has a chance to find the source."""
+    return (inspect.ismodule(python_object) or
+            inspect.isclass(python_object) or
+            inspect.ismethod(python_object) or
+            inspect.isfunction(python_object) or
+            inspect.istraceback(python_object) or
+            inspect.isframe(python_object) or
+            inspect.iscode(python_object))
+
+
 def find_syntax_node_name(evaluator, python_object):
     try:
+        if not source_findable(python_object):
+            raise TypeError  # Prevents computation of `repr` within inspect.
         path = inspect.getsourcefile(python_object)
     except TypeError:
         # The type might not be known (e.g. class_with_dict.__weakref__)