Bank customer

Write the function customer() that takes the balance of a bank customer, and returns a string showing the customer type using the following rules. If the bank account balance is greater or equal than 1000 Euros the function returns the string 'reliable'. If it is less than 1000 Euros but positive, returns the string 'precarious'. If the balance is 0 or negative but greater than -1000 Euros, the customer type is 'short on' and if it is less than or equal to -1000 Euros, the customer type is 'defaulting'. Solve this exercise in two different ways: with and without nested if statements.

Save this function into a file named customer.py.

See the following examples:

>>> customer (1000)
'reliable'
>>> customer (234765)
'reliable'
>>> customer (347)
'precarious'
>>> customer (1)
'precarious'
>>> customer (0)
'short on'
>>> customer (-800)
'short on'
>>> customer (-1000)
'defaulting'
>>> customer (-4300)
'defaulting'

Note

More tests are provided in the test-customer.txt file.

Solution

A solution is provided in the customer.py file.