TI-84 Python edition - hybrid programming

The Texas Instruments TI-84 Plus CE-T calculator has a special edition called "Python Edition"
It's easy to develop Python programs for this system. 
I'm developping like this:
I develop the programs like normal python programs on a PC with an editor (in my case PyCharm and Notepad++).
To be able to test the program on a PC I've made the following design.
1. conditional support for imports from TI libraries, like this:
​try:
    from ti_system import *
except Exception as e:
     print ("no module ti_system")
2. read and write data wrapped in functions with a hybrid implementation
For reading data TI uses recall_list
For writing data TI uses store_list
On a "normal" system without the ti_system library this will not work.
So, I made wrapper functions with exception handling, e.g.
def saveeuro(ieuro):
    xlist=[]
    xlist.append(ieuro)
  try:
      store_list("1",xlist)
  except NameError as e:
      saveEuroToFile(ieuro)
  return

See github for the sourcecode:
​github.com/edleijnse/ti84python