Role of Underscore(_) in Python
https://www.datacamp.com/tutorial/role-underscore-python

Five uses of "_"
1 Automatically holds the result of the previous interpreted statement
   > 2+3
    5
   > _
    5
2. ignores (discards) the result assigned to it
  a , _  , b = ( 1 , 2 , 3 )

3. as a variabl when looping
     for _in range(5):
         print(_)

4. separate digits
   n=1_000_000

5. in names
    _name = "dave"

  class Test:

    def __init__(self):
        self.name = "datacamp"
        self._num = 7

	obj = Test()
	print(obj.name)
	print(obj._num)
>>>>datacamp
>>>>7

 

/Uses_of_Underscore.txt