common_functions.py

import datetime
from typing import List, Optional, TypeVar

ChoiceType = TypeVar("ChoiceType")


def select_from_list(choices: List[ChoiceType], choice_name: str) -> ChoiceType:
    print(f'Choose the {choice_name} from this list:')
    for i in range(len(choices)):
        print(f'{i+1})\t{choices[i]}'.expandtabs(4))
    selection = input('Enter selection: ')
    return choices[int(selection) - 1]


def strip_html(text: Optional[str]) -> Optional[str]:
    import re
    if text is not None:
        return re.sub(re.compile('<.*?>'), '', text)
    else:
        return None

def semester_stamp() -> str:
    today = datetime.date.today()
    year: int = today.year
    month: int = today.month
    # Normalize month to semester start
    if month < 5:
        month = 1
    elif month < 8:
        month = 5
    else:
        month = 8
    return f'{year}-0{month}'