curriculum/challenges/english/blocks/workshop-salary-tracker/68c809c990f253912a9e9209.md
As you learned in a previous lesson, a setter offers a way to control how an attribute can be modified. To ensure that new_name is the right type, create an if statement that raises a TypeError with the message 'name' must be a string. when new_name is not an instance of str.
You should have an if statement inside your name setter.
({ test: () => assert(runPython(`_Node(_code).find_class("Employee").find_functions("name")[1].find_ifs()[0]`)) })
You should raise a TypeError with the message 'name' must be a string. when new_name is not an instance of str.
({ test: () => runPython(`
emp = Employee('Frank', 'trainee')
non_names = [0, True, []]
for i in non_names:
try:
emp.name = i
except TypeError as e:
assert str(e) == "'name' must be a string."
else:
assert False, "Expected to raise TypeError with non-string new_name"
`) })
You should not raise any exception when new_name is a string.
({ test: () => runPython(`
emp = Employee('Frank', 'trainee')
try:
emp.name = "Jack"
except Exception:
assert False, "Expected not to raise any exception with valid new_name"
`) })
class Employee:
_base_salaries = {
'trainee': 1000,
'junior': 2000,
'mid-level': 3000,
'senior': 4000,
}
def __init__(self, name, level):
if not (isinstance(name, str) and isinstance(level, str)):
raise TypeError("'name' and 'level' attribute must be of type 'str'.")
if level not in Employee._base_salaries:
raise ValueError(f"Invalid value '{level}' for 'level' attribute.")
self._name = name
self._level = level
self._salary = Employee._base_salaries[level]
def __str__(self):
return f'{self.name}: {self.level}'
def __repr__(self):
return f"Employee('{self.name}', '{self.level}')"
@property
def name(self):
return self._name
--fcc-editable-region--
@name.setter
def name(self, new_name):
self._name = new_name
--fcc-editable-region--
@property
def level(self):
return self._level
@property
def salary(self):
return self._salary
charlie_brown = Employee('Charlie Brown', 'trainee')
print(charlie_brown)
print(f'Base salary: ${charlie_brown.salary}')