2 ms·

Isn't that going to be even slower, since a 156mb file would probably make gc_lines a very big tuple before summing it?

• henbruas 5y ago
  gc_lines isn't a tuple here, it's a generator expression. It will be lazily evaluated.
• makapuf 5y ago
  You could do gc=sum(1 for _ on lines if ...) or use Counter