problem of double import in python

[alex23]

On 3/09/2013 10:48 AM, Mohsen Pahlevanzadeh wrote:
> Unfortunately, i prevent to same error, double import to python, but i
> don't know how to solve, Even i don't know policy of python programmers.

You don't need to do anything, Python takes care of this for you.

During execution, a module is only loaded the first time it is imported. 
Every following import will notice that it has already been loaded and 
return a reference to the module instead.