"""
rules v.s. convention

we must follow
convention we must follow

coding convention
    naming convention
        naming a file
        naming a package
        naming a variable
        naming a constant
        naming a function
        naming a class
        naming other python entities
    other conventions

"""

# project_no_texteditor_yourname.py
# stem1401_python_homework_1_yourname.py

# abc.py
# abc_yourname.py

# code block
# indentation takes up 4 whitespace
a = 1



