update python_easy.py

update scripts/generate_tasks.py

update python_easy.py

update scripts/generate_tasks.py

update python_easy.py

update scripts/generate_tasks.py

update python_medium.py

update python_easy.py

update python_medium.py

update python_medium.py

update python_easy.py

update python_easy.py

add PROFILE.md

delete PROFILE.md

add PROFILE.md