[python]: learn-lambda-functions-by-building-an-expense-tracker

[ShaunSHamilton]

TO FIX POST BETA RELEASE

• 1: add more hints to recall the function declaration syntax (and maybe split the step to add the parameters in a new step)
• 4: it would be great to provide more info about dictionaries and dictionary keys and highlight the difference between "amount" and amount
• 7: add another hint and reword the current one
• 8: Leave the placeholders empty for now. doesn't seem to fit.
• 11: Typo in "Learn Lambda Functions by Building an Expense Tracker" #53420
• 13: Building an Expense Tracker - Step 13 - map object print out not explained #53135
• 16: Learn Lambda functions by building an expense tracker step 16 instructions unclear  #53463

[Dario-DC]

See also #52722

[ilenia-magoni]

Since the adding of quotes around strings, step 9 is a good place to repeat that if your string is surrounded with a kind of quote, then you need to escape or use a different kind of quote as this step require f'Amount: {expense["amount"]}, Category: {expense["category"]}'

also, with the great number of same-name variables, it could be also a place to talk about scope

[gikf]

Since the adding of quotes around strings, step 9 is a good place to repeat that if your string is surrounded with a kind of quote, then you need to escape or use a different kind of quote as this step require f'Amount: {expense["amount"]}, Category: {expense["category"]}'

F-string is a bit special case here, which additionally changed very recently in Python 3.12

For f-strings:

• Python pre-3.12
  • Using backslash \ is not allowed in any part inside of the {}.
  • Using the same quotes inside of the {} is not allowed.
• Python 3.12+:
  • Using backslash \ is allowed inside of the {}.
  • Using the same quote inside of the {} is allowed, even without escaping, but not encouraged.