diff --git a/python/gnatcoll-python.ads b/python/gnatcoll-python.ads
index ad88dc7a..3d3e9d77 100644
--- a/python/gnatcoll-python.ads
+++ b/python/gnatcoll-python.ads
@@ -1,7 +1,7 @@
 ------------------------------------------------------------------------------
 --                             G N A T C O L L                              --
 --                                                                          --
---                     Copyright (C) 2003-2019, AdaCore                     --
+--                     Copyright (C) 2003-2020, AdaCore                     --
 --                                                                          --
 -- This library is free software;  you can redistribute it and/or modify it --
 -- under terms of the  GNU General Public License  as published by the Free --
@@ -853,6 +853,7 @@ package GNATCOLL.Python is
 
    function PyFile_FromString (File_Name, Mode : String) return PyObject;
    --  Create an instance of file.
+   --  Python3 removes this function. Use "io.open()" instead.
 
    -----------------
    -- Class types --
diff --git a/python/python_support.c b/python/python_support.c
index 3cf7e504..adb60552 100644
--- a/python/python_support.c
+++ b/python/python_support.c
@@ -1,7 +1,7 @@
 /*----------------------------------------------------------------------------
 --                          G N A T C O L L                                 --
 --                                                                          --
---                     Copyright (C) 2003-2019, AdaCore                     --
+--                     Copyright (C) 2003-2020, AdaCore                     --
 --                                                                          --
 -- This is free software;  you can redistribute it  and/or modify it  under --
 -- terms of the  GNU General Public License as published  by the Free Soft- --
@@ -886,6 +886,16 @@ PyAPI_FUNC(PyObject *) PyCObject_FromVoidPtr(
          (PyCapsule_Destructor) destruct);
 };
 
+PyAPI_FUNC(PyObject *) PyFile_FromString
+  (const char *file_name, const char *mode)
+{
+  PyObject * io = PyImport_ImportModule ("io");
+  if (io == NULL) {
+    return NULL;
+  }
+  return PyObject_CallMethod (io, "open", "ss", file_name, mode);
+}
+
 #else
 int ada_is_python3() {
   return 0;