In order to simplify the programming environment, and enhance programming experience, we propose a web-based python3 programming environment. The web environment of this application uses python-based Django framework. This application can achieve the purpose of running python3 code in the browser by convering the python3 code into browser executable JavaScript script. Compared with traditional python3 programming environment, this programming environment can achieve remote programming and code sharing without installing and deploying any development environment locally. Experimental results shows that our programming environment has strong feasibility, good stability and good concurrency.