Hi need help with this python assignment, contains multiple questions! Please provide comments if possible, thank you!

Question 1. Question 1a. Define a class Price that satisfies the following specifications. Question 1b. Define a str and a repr dunder method for the class Price that satisfies the Question 1c. Define a class OutofStockError that satisfies the following specifications. Question 2. Question 2a. Define a class Inventory that satisfies the following specifications. Question 3 . Question 3b. Define a function that satisfies the following specifications. The checksum letter of a 7-digits number is calculated as such: d=[(i1i2i3i4i5i6i7)(2765432)]mod11 =(2i1+7i2+6i3+5i4+4i5+3i6+2i7)mod11 Where ix is the 1st to last of the 7 digits of the 7-digits number and (2,7,6,5,4,3,2) are the weights. The checksum is a letter which corresponds to the number d as shown in the look-up table below Question 4a Define a function that meets the following specifications. Part 2 A typical vehicle registration number comes in the format xxx####y: - x - prefixes - \#- Numerical series (from 1 to 9999 , without leading zeroes) - y - Checksum - The checksum letter is calculated by first converting the letters into numbers, i.e., where A=1 and Z=26, and numbers to individual digits, potentially giving six individual numbers from the registration plate. - However, only two letters of the prefix are used in the checksum. For a three-letter prefix, only the last two letters are used; for a two-letter prefix, both letters are used; for a single letter prefix, the single letter corresponds to the second position, with the first position as 0 . - For numerals less than four digits, additional zeroes are added in front as placeholders, for example "1" is "0001". SBS 3229 would therefore give 2, 19, 3, 2, 2 and 9 (note that "S" is discarded); E 12 would give 0,5,0,0,1 and 2. SS 108 would be given as 19,19,0,1,0,8. - Each individual number is then multiplied by 6 fixed numbers (9,4,5,4,3,2). These are added up, then divided by 19. The remainder corresponds to one of the 19 letters used (A, Z, Y, X, U, T, S,R,P,M,L,K,J,H,G,E,D,C,B ), with "A" corresponding to a remainder of 0 , "Z" corresponding to 1 , "Y" corresponding to 2 and so on. In the case of SBS 3229 , the final letter should be a P; for E 23, the final letter should be a H. SS 11 back letter should be a T. The letters F,I,N,O,Q,V and W are not used as checksum letters. Define a function that meets the following specifications