[Tutor] Use of underscore(_) in place of a variable in target list of for statement
Peter Otten
__peter__ at web.de
Thu Aug 13 13:30:14 EDT 2020
Manprit Singh wrote:
> Consider a problem where i have to display first ten fibonacci numbers .
> if i write a code like this,
>
> a, b = 0, 1
> for _ in range(10):
> print(a)
> a, b = b, a+b
To go off on a tangent, I usually use a generator in cases like these:
def fib():
a, b = 0, 1
while True:
yield a
a, b = b, a + b
Then you don't need a dummy variable, you can limit the infinite sequence
with itertools.islice():
from itertools import islice
for n in islice(fib(), 10):
print(n)
More information about the Tutor
mailing list