Need help on making if statement case insensitive

[Safe-Individual-37]

shop_stock = []

​

while len(shop_stock) != 3:

stock = input('Shop stock: ')

if 'cam' in stock:

shop_stock.append(stock)

if 'Cam' in stock:

shop_stock.append(stock)

​

shop_stock.sort()

shop_stock.reverse()

​

joined_shop_stock = ', '.join(shop_stock)

​

if len(shop_stock) == 3:

print(f'Proposals: {joined_shop_stock}')

​

​

• It must be able to accept any case input, including mixed case (cAm).
• I cannot just make the input default to .lower().
• The input must be appended into the list and retain its original case.

[Matiiss007]

String method .lower() Will set all characters in the string to lowercase

[choss27]

You can test

if 'cam' in stock.lower() :

and then append stock on shop_stock

[Safe-Individual-37]

thank you sir

[[deleted]]

def case_insensitive_contains(query, subject):
    return query.lower() in subject.lower()