I'm confused about "x" in the python code below.
>>> # Grocery list
... grocery_list = ['apples', 'bananas', 'oranges', 'milk']
>>> for x in grocery_list:
... print(x, len(x))
Yes it's defined within the for statement. It's just a placeholder for an element in the list and can be called anything, e.g.
grocery_list = ['apples', 'bananas', 'oranges', 'milk'] for grocery in grocery_list: print(grocery, len(grocery))