The method should be named __init__ to be a constructor, not _init_. (Note the double underscores.)
If you use single underscores, you merely create a method named _init_, and get a default constructor, which takes no arguments.
The method should be named __init__ to be a constructor, not _init_. (Note the double underscores.)
If you use single underscores, you merely create a method named _init_, and get a default constructor, which takes no arguments.