Please tell me how to execute python file in Ubuntu by double clicking on file.

Respected Sir/Mam, I am Dhananjay Singh,Student of IIIT Manipur. Sir/Mam when i am double click in python program (Dhananjay.py),it is opening in Text Editor by Default in Ubuntu.I want to run this program when i double click on it as any *.Exe file executes as in Window. Sir please help

Please tell me how to execute python file in Ubuntu by double

Respected Sir/Mam, I am Dhananjay Singh,Student of IIIT Manipur. Sir/Mam when i am double click in python program (Dhananjay.py),it is opening in Text Editor by Default in Ubuntu.I want to run this program when i double click on it as any *.Exe file executes as in Window. Sir please help me