Get Field Names in Python: dir() & vars()

You can retrieve the field name in Python using the following method.

1. display the contents

class MyClass:
    field1 = 'value1'
    field2 = 'value2'

fields = [attr for attr in dir(MyClass) if not callable(getattr(MyClass, attr)) and not attr.startswith('__')]
print(fields)  # ['field1', 'field2']

1. retrieve a dictionary containing all local variables declared in the current scope

class MyClass:
    field1 = 'value1'
    field2 = 'value2'

obj = MyClass()
fields = list(vars(obj).keys())
print(fields)  # ['field1', 'field2']

1. dictionary

class MyClass:
    field1 = 'value1'
    field2 = 'value2'

obj = MyClass()
fields = list(obj.__dict__.keys())
print(fields)  # ['field1', 'field2']

These methods are suitable for instances of regular classes, but may not be applicable to special objects such as built-in types and functions.