def set_components(top):
spec = Spec.get_spec('Iso8583 v0 - Test')
top.title = top.title + ' - ' + spec.name
spec_tree = ttk.Treeview(top, columns=('Field', 'Field Encoding', 'Field Value'), selectmode='browse')
msg = spec.get_msg_by_name('Authorization Message - 0100')
for field_def in msg.req_fields:
print field_def.name
spec_tree.insert('', 'end', field_def.name, text=field_def.name,
values=field_def.name + ',' + field_def.encoding)
spec_tree.pack()
