diff --git a/cfg/python.cfg b/cfg/python.cfg
index ed2fad429..563ede851 100644
--- a/cfg/python.cfg
+++ b/cfg/python.cfg
@@ -431,6 +431,58 @@
       <strz/>
     </arg>
   </function>
+  <!-- double PyFloat_AsDouble(PyObject *pyfloat) -->
+  <function name="PyFloat_AsDouble">
+    <noreturn>false</noreturn>
+    <returnValue type="double"/>
+    <use-retval/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+  </function>
+  <!-- double PyFloat_AS_DOUBLE(PyObject *pyfloat) -->
+  <function name="PyFloat_AS_DOUBLE">
+    <noreturn>false</noreturn>
+    <returnValue type="double"/>
+    <use-retval/>
+    <arg nr="1" direction="in">
+      <not-null/>
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+  </function>
+  <!-- int PyFloat_Check(PyObject *p) -->
+  <!-- int PyFloat_CheckExact(PyObject *p) -->
+  <function name="PyFloat_Check,PyFloat_CheckExact">
+    <noreturn>false</noreturn>
+    <returnValue type="int"/>
+    <use-retval/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+  </function>
+  <!-- PyObject* PyFloat_FromDouble(double v) -->
+  <function name="PyFloat_FromDouble">
+    <noreturn>false</noreturn>
+    <returnValue type="PyObject*"/>
+    <use-retval/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+  </function>
+  <!-- PyObject* PyFloat_FromString(PyObject *str) -->
+  <function name="PyFloat_FromString">
+    <noreturn>false</noreturn>
+    <returnValue type="PyObject*"/>
+    <use-retval/>
+    <arg nr="1" direction="in">
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+  </function>
   <!-- int PyInt_Check(PyObject *o) -->
   <function name="PyInt_Check">
     <returnValue type="int"/>
@@ -499,6 +551,62 @@
       <valid>0:</valid>
     </arg>
   </function>
+  <!-- int PyModule_AddIntConstant(PyObject *module, const char *name, long value) -->
+  <function name="PyModule_AddIntConstant">
+    <noreturn>false</noreturn>
+    <returnValue type="int"/>
+    <arg nr="1" direction="inout">
+      <not-uninit/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-null/>
+      <not-uninit/>
+      <strz/>
+    </arg>
+    <arg nr="3" direction="in">
+      <not-uninit/>
+    </arg>
+  </function>
+  <!-- int PyModule_AddObject(PyObject *module, const char *name, PyObject *value) -->
+  <!-- The hint "This means that its return value must be checked, and calling code must Py_DECREF()
+       value manually on error." in the documentation suggests to add use-retval. -->
+  <function name="PyModule_AddObject">
+    <noreturn>false</noreturn>
+    <returnValue type="int"/>
+    <use-retval/>
+    <arg nr="1">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-null/>
+      <not-uninit/>
+      <strz/>
+    </arg>
+    <arg nr="3">
+      <not-null/>
+      <not-bool/>
+    </arg>
+  </function>
+  <!-- int PyModule_AddStringConstant(PyObject *module, const char *name, const char *value) -->
+  <function name="PyModule_AddStringConstant">
+    <noreturn>false</noreturn>
+    <returnValue type="int"/>
+    <arg nr="1" direction="inout">
+      <not-uninit/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-null/>
+      <not-uninit/>
+      <strz/>
+    </arg>
+    <arg nr="3" direction="in">
+      <not-null/>
+      <not-uninit/>
+      <strz/>
+      <not-bool/>
+    </arg>
+  </function>
   <!-- void PyObject_Del(void *op) -->
   <function name="PyObject_Del">
     <noreturn>false</noreturn>
@@ -507,6 +615,21 @@
       <not-uninit/>
     </arg>
   </function>
+  <!-- PyObject* PyObject_GetAttrString(PyObject *o, const char *attr_name) -->
+  <function name="PyObject_GetAttrString">
+    <noreturn>false</noreturn>
+    <returnValue type="PyObject*"/>
+    <use-retval/>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2" direction="in">
+      <not-null/>
+      <not-uninit/>
+      <strz/>
+      <not-bool/>
+    </arg>
+  </function>
   <!-- PyAPI_FUNC(PyObject *) _PyObject_New(PyTypeObject *); -->
   <function name="_PyObject_New">
     <noreturn>false</noreturn>