Install on external storage

```
Hi,

For our app, we get a large size of python code. Since, through 
android-python27, all python zip file will be unzip to internal storage, our 
app may be large for some old device.

Is there a way to unzip the python code to the external storage? such as a sd 
card? 


```

Original issue reported on code.google.com by `ChrisLi...@gmail.com` on 17 Apr 2015 at 11:56
