diff -r d0b4be7d2134 Python/import.c
--- a/Python/import.c	Fri Jan 29 00:55:37 2016 +0200
+++ b/Python/import.c	Fri Jan 29 11:07:53 2016 +0200
@@ -658,11 +658,16 @@ static void
 remove_module(const char *name)
 {
     PyObject *modules = PyImport_GetModuleDict();
-    if (PyDict_GetItemString(modules, name) == NULL)
+    int recursion_limit = Py_GetRecursionLimit();
+    Py_SetRecursionLimit(recursion_limit + 50);
+    if (PyDict_GetItemString(modules, name) == NULL) {
+        Py_SetRecursionLimit(recursion_limit);
         return;
+    }
     if (PyDict_DelItemString(modules, name) < 0)
         Py_FatalError("import:  deleting existing key in"
                       "sys.modules failed");
+    Py_SetRecursionLimit(recursion_limit);
 }
 
 /* Execute a code object in a module and return the module object