I'm writing to see calcuration process.
And so, I can't catch StopIteration...
What is mistake?
def collatz(n):
r=[]
while n>1:
r.append(n)
n = 3*n+1 if n%2 else n/2
yield r
for i, x in enumerate(collatz(13)):
try:
last = x[:i+1]
print x[:i+1]
except StopIteration:
print last.appnd(1)
Output:
[13]
[13, 40]
[13, 40, 20]
[13, 40, 20, 10]
[13, 40, 20, 10, 5]
[13, 40, 20, 10, 5, 16]
[13, 40, 20, 10, 5, 16, 8]
[13, 40, 20, 10, 5, 16, 8, 4]
[13, 40, 20, 10, 5, 16, 8, 4, 2]
last.appnd(1) <= [13, 40, 20, 10, 5, 16, 8, 4, 2, 1] # i want this
list
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