How do I change the higher limit of a python for loop at runtime?
The code,
from random import randint
lower_limit = 0
higher_limit = 200
step_size = 5
for i in range(lower_limit, higher_limit, step_size):
# do something
higher_limit = higher_limit + randint(0, 5)
The code runs till the first higher limit and doesn't care about the declared one, What can be done to make this work?
you need to use while:
from random import randint
lower_limit = 0
higher_limit = 200
step_size = 5
while i <higher_limit:
# do something
higher_limit = higher_limit + randint(0, 5)
i += 5
You can't modify a range once it is created. I think it would be easier for you to restructure your logic and replace range with while:
lower_limit = 0
higher_limit = 200
step_size = 5
i = 0
while lower_limit <= i < higher_limit:
# do something
i = i + step_size
higher_limit = higher_limit + randint(0, 5)
maybe you can define your own version of range (simplified):
from random import randint
def higher_range(start, upto, step, inc):
i = start
while i < upto:
yield i
i += step
upto += randint(0, inc)
for j in higher_range(0, 10, 5, 5):
print j
Obviously, there is not guarantee it will terminate any time soon...
