如何在字典中提取特定值（只有没有键的值）

Question

I used python to write a dictionary of a customer:

customer = {'name': name, 'phone_number': phone_number, 'code': code1} 

the key-values of this dictionary have been defined.My trouble is:
When I want to check the value of the input_name (the user inputs) whether is the same as the value of the key name (in dictionary), I don't know how to extract the value of the key name in dictionary. Should I use the method .value of a dictionary?

Thanks for help in advance.

Answer 1

if input_name == customer['name']:
    print("yes")
else:
    print("no")

Answer 2

You can use one of the following

customer['name'] == input_name

Or if you don't know if the 'name' is actually in the dictionary

customer.get('name', 'default_value') == input_name

Both of the above statements will evaluate to True if the input_name is the same as the name in dictionary, False otherwise

Answer 3

You can use

print("Yes" if input_name == customer['name'] else "No")

Answer 4

You can use get method.

 value = customer.get('name',  None) 

If the name doesn't exist, it will return None