Write a program that reads in a list of accounts from a file

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Reference no: EM132158985

Use python :

Write a program that reads in a list of accounts from a file, and then allows the user to enter transactions for each account. The file accounts.txt contains a list of accounts with initial balances.

As the program runs, it should ask the user for the name of an account, and the amount of money to deposit or withdraw from the account.

After each transaction, the program should print the amount remaining in the account. If the accounts.txt file is missing, the program should exit with an error message. If any account has a non-float value for the balance, the program should display an error and not add that account.

If a non-float is entered for a transaction, or if the account name entered does not exist, the program should print an error message and cancel the transaction. The program should exit when the user enters "Stop" for an account name.

Note that the accounts.txt file DOES NOT need to be updated by the program.

Input File Example

Bob:234.70

Tom Johnson:791.56

Anna:3260.55

Jill:-23.76

Mike Smith:Not_A_Float!
. . .
When the line:

Mike Smith:Not_A_Float!

is encountered, the program should print: Account for Mike Smith not added: illegal value for balance

If the input file is missing, the program should print: Input file not found, program will exit

An example of interaction with the program could look like this:

Enter account name, or 'Stop' to exit: Bob

Enter transaction amount: -45.23

New balance for account Bob: 189.47

Enter account name, or 'Stop' to exit: Bob

Enter transaction amount: 117.90

New balance for account Bob: 307.37

Enter account name, or 'Stop' to exit: Anna

Enter transaction amount: this_is_not_a_float

Illegal value for transaction, transaction canceled

Enter account name, or 'Stop' to exit: Mike Smith

Account does not exist, transaction canceled

Enter account name, or 'Stop' to exit: Stop

accounts.txt:

Bob:234.70
Tom Johnson:791.56
Anna:3260.55
Jill:-23.76
Mike Smith:Not_A_Float!
Timothy James Lee:1022.71
Sarah Smith:-567.30
George:eleven
Vanessa:43781.43
Mr. X:417.99

Reference no: EM132158985

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