Install our python readline hook in fix-python.sh

This is temporary, I want a system like mainline where lots of Python
stuff can be more neatly installed...

util/fix-python.sh

@@ -40,3 +40,6 @@ pushd $HDD_PATH/usr
 
 	popd
 popd
+
+echo "Installing readline hook..."
+cp util/readline.py $HDD_PATH/usr/python/lib/python3.6/

util/readline.py

@@ -0,0 +1,100 @@
+import ctypes
+
+auto_history = True
+
+py = ctypes.CDLL("libpython3.6m.so")
+rline_lib = ctypes.CDLL("libtoaru_rline.so")
+
+readline_func = ctypes.c_void_p.in_dll(py,"PyOS_ReadlineFunctionPointer")
+t = ctypes.c_char_p.in_dll(rline_lib,"rline_for_python")
+readline_func.value = ctypes.addressof(t)
+
+# Change exit string to "exit()"
+exit_string_lib = ctypes.c_char_p.in_dll(rline_lib,"rline_exit_string")
+exit_string = ctypes.c_char_p(b"")
+exit_string_lib.value = exit_string.value
+
+def parse_and_bind(s):
+    pass
+
+def read_init_file(filename=None):
+    pass
+
+def get_line_buffer():
+    return None
+
+def insert_text(string):
+    return None
+
+def redisplay():
+    pass
+
+def read_history_file(filename):
+    pass
+
+def write_history_file(filename):
+    pass
+
+def append_history_file(nelements,filename=None):
+    pass
+
+def get_history_length():
+    return 0
+
+def set_history_length(length):
+    pass
+
+def clear_history():
+    pass
+
+def get_current_history_length():
+    return ctypes.c_int.in_dll(rline_lib,"rline_history_count").value
+
+def get_history_item(index):
+    if index < 1 or index > get_current_history_length():
+        raise ValueError("bad history index")
+    index -= 1
+    return cast(rline_lib.rline_history_get(index), c_char_p).value.decode('utf-8')
+
+def remove_history_item(pos):
+    pass
+
+def replace_history_item(pos, item):
+    pass
+
+def add_history(line):
+    rline_lib.rline_history_insert(line.encode('utf-8'))
+
+def set_auto_history(enabled):
+    auto_history = enabled
+
+def set_startup_hook(func=None):
+    pass
+
+def set_pre_input_hook(func=None):
+    pass
+
+def set_completer(func=None):
+    pass
+
+def get_completer():
+    return None
+
+def get_completion_type():
+    return None
+
+def get_begidx():
+    return 0
+
+def get_endidx():
+    return 0
+
+def set_completer_delims(string):
+    pass
+
+def get_completer_delims():
+    return ""
+
+def set_completion_display_matches_hook(func=None):
+    pass
+