Rarblack questions

Rarblack answers

• Custom User Model Django TypeError: create_user() missing 1 required positional argument: 'username'
• Django: Unsupported lookup 'case_exact' for CharField or join on the field not permitted
• Java Inheritance strange behaviour
• Why does tagName method in JavaScript return HTML tags in capital letters?
• What is the use of cleaned_data in Django
• Static interface methods are only supported starting with Android N (--min-api 24) [duplicate]
• Problem trying to install pillow 5.3.0 for python 3.7 [duplicate]