import timeit
tradicional = timeit.timeit('for i in range(20): l.append(i)', setup='l=[]')
compreensao = timeit.timeit('[i for i in range(20)]')
lista_range = timeit.timeit('list(range(20))')
print(f'tradicional={tradicional}')
print(f'compreensao={compreensao}')
print(f'lista_range={lista_range}')
aW1wb3J0IHRpbWVpdAoKdHJhZGljaW9uYWwgPSB0aW1laXQudGltZWl0KCdmb3IgaSBpbiByYW5nZSgyMCk6IGwuYXBwZW5kKGkpJywgc2V0dXA9J2w9W10nKQpjb21wcmVlbnNhbyA9IHRpbWVpdC50aW1laXQoJ1tpIGZvciBpIGluIHJhbmdlKDIwKV0nKQpsaXN0YV9yYW5nZSA9IHRpbWVpdC50aW1laXQoJ2xpc3QocmFuZ2UoMjApKScpCgpwcmludChmJ3RyYWRpY2lvbmFsPXt0cmFkaWNpb25hbH0nKQpwcmludChmJ2NvbXByZWVuc2FvPXtjb21wcmVlbnNhb30nKQpwcmludChmJ2xpc3RhX3JhbmdlPXtsaXN0YV9yYW5nZX0nKQ==