====== NOTES FROM PYTHON WORKOUT BOOK ======

==== SPLAT OPERATOR ====

Splat operator (aka ''*'') allows a function to receive any number or arguments.

<code python>
def mysum(*numbers):
    print(type(numbers))  # tuple
    
mysum(1,2,3,4,5)     # passing arbitrary number of arguments
mysum(*[2,3,4,5,6])  # unpacking an iterable
</code>

==== GEERATORS ====

A generator expression looks just like a list comprehension but with parentheses instead of brackets:
<code python>
# List comprehension — builds a list
[some_func(w) for w in s.split()]

# Generator expression — produces values lazily
(some_func(w) for w in s.split())
</code>

When you pass a generator directly as the only argument to a function, you can drop the extra parentheses:
<code python>
" ".join(some_func(w) for w in s.split())    # parens omitted (cleaner)
</code>