Full support of Python 3 in GRASS GIS

Title:	Full support of Python 3 in GRASS GIS
Student Name:	Sanjeet Bhatti
Organization:	​OSGeo - Open Source Geospatial Foundation
Mentor Name:	Anna Petrášová and Luca Delucchi
GSoC proposal:	​View proposal
Link to code:	​Code Repository

Abstract

The current GRASS GIS version has partial support for Python 3. This project aims to update core GRASS components for Python 3 and update all the python modules, libraries and components like script package, python/ctypes, pygrass, temporal, wxGUI, etc. At the end of this project, GRASS GIS will be compatible with both the versions of python, i.e Python 2.7 and Python 3 with its GUI having support for wxPython 4.

Timeline

Time Period	Milestones
	Tasks	Status
April 23 - May 14 Community Bonding	Introduction to Community Create Wiki page Set up code repository Set up development environment Discussion with community members and mentors about the design of the project Get familiar with the testing framework Update current tests of the libraries, adjust them to work with Python3 and write new tests Get familiar with the overall working of GRASS GIS and understand Python dependencies in the system Read documentation Practice fixing bugs	✔ ✔ ✔ ✔ ... ... ... ... ... ✔
May 14 - May 20 Week 1	Dealing with Unicode & binary data (encoding and decoding). Setting up the foundation for porting the main libraries and components
May 21 - May 27 Week 2	Porting script package module and its dependencies
May 28 - June 3 Week 3	Porting temporal module and its dependencies
June 4 - June 10 Week 4	Finish pending work for this phase, if any. Preparing and testing the changes for the evaluation
July 11 - July 15 Evaluation 1	Evaluation of work done in the previous phase Next phase discussions
June 11 - June 17 Week 5	Incorporate any changes, as necessary, from the discussions and feedback Finish porting remaining libs, components and scripts
June 18 - June 24 Week 6	Work on porting ctypes module
June 25 - July 1 Week 7	Porting pygrass module and its dependencies Porting other libs and their dependencies
July 2 - July 8 Week 8	Finish pending work for this phase, if any. Preparing and testing the changes for the evaluation
July 9 - July 13 Evaluation 2	Evaluation of work done in the previous phase Next phase discussions
July 9 - July 29 Week 9-11	Based on the feedback, make necessary changes Writing additional classes in wrap.py for updating wxGUI to be compatible with both wxPython 3 and 4. Finish porting to Python 3 Fixing all deprecated messages Testing the changes.
July 30 - August 5 Week 12	Preparing and testing all the changes Writing documentation for the final evaluation
August 6 - August 14 Evaluation 3 (Final)	Final code submission Evaluation of final submission

Weekly reports