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python:workout

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python:workout [2026/02/27 08:31] – [SPLAT OPERATOR] v1ctorpython:workout [2026/03/24 11:31] (current) – [GEERATORS] v1ctor
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 mysum(1,2,3,4,5)     # passing arbitrary number of arguments mysum(1,2,3,4,5)     # passing arbitrary number of arguments
 mysum(*[2,3,4,5,6])  # unpacking an iterable 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> </code>
python/workout.1772181068.txt.gz · Last modified: by v1ctor