Patch #445762: Support --disable-unicode

- Do not compile unicodeobject, unicodectype, and unicodedata if Unicode is disabled
- check for Py_USING_UNICODE in all places that use Unicode functions
- disables unicode literals, and the builtin functions
- add the types.StringTypes list
- remove Unicode literals from most tests.

Objects/floatobject.c

@@ -109,7 +109,9 @@ PyFloat_FromString(PyObject *v, char **pend)
 	const char *s, *last, *end;
 	double x;
 	char buffer[256]; /* for errors */
+#ifdef Py_USING_UNICODE
 	char s_buffer[256]; /* for objects convertible to a char buffer */
+#endif
 	int len;
 
 	if (pend)
@@ -118,6 +120,7 @@ PyFloat_FromString(PyObject *v, char **pend)
 		s = PyString_AS_STRING(v);
 		len = PyString_GET_SIZE(v);
 	}
+#ifdef Py_USING_UNICODE
 	else if (PyUnicode_Check(v)) {
 		if (PyUnicode_GET_SIZE(v) >= sizeof(s_buffer)) {
 			PyErr_SetString(PyExc_ValueError,
@@ -132,6 +135,7 @@ PyFloat_FromString(PyObject *v, char **pend)
 		s = s_buffer;
 		len = (int)strlen(s);
 	}
+#endif
 	else if (PyObject_AsCharBuffer(v, &s, &len)) {
 		PyErr_SetString(PyExc_TypeError,
 				"float() needs a string argument");