I am trying to add to an empty list in python and I am having
trouble. Ill give an example of the code to see if anyone can help
me out....
num = 0
mylist = []
while num < 10:
num = num + 1
mylist = mylist + num
for item in list:
print item
I am trying to add to an empty list in python and I am having
trouble. Ill give an example of the code to see if anyone can help
me out....
num = 0
mylist = []
while num < 10:
num = num + 1
mylist = mylist + num
for item in list:
print item
Jump to PostTo do it the way you're trying to do it, use this:
>>> num = 0 >>> mylist = [] >>> >>> while num < 10: ... num += 1 ... mylist += [num] ... >>> for item in mylist: ... print item ... 1 2 3 …
Jump to PostSome corrections:
num = 0 mylist = [] while num < 10: num = num + 1 mylist.append(num) print(mylist) for item in mylist: print(item)
To do it the way you're trying to do it, use this:
>>> num = 0
>>> mylist = []
>>>
>>> while num < 10:
... num += 1
... mylist += [num]
...
>>> for item in mylist:
... print item
...
1
2
3
4
5
6
7
8
9
10
>>>
Notice I put brackets around num
since you have to add a list to a list when using the + operator. Other methods would be to use mylist.append(num)
or mylist.insert(index, num)
. I also changed your x = x + y
statements to x += y
, which is identical.
HTH
Some corrections:
num = 0
mylist = []
while num < 10:
num = num + 1
mylist.append(num)
print(mylist)
for item in mylist:
print(item)
So what you basically want is to fill the list with a sequence of numbers? Why?
I'm not getting it to print anything! I'll post the exact code I am working with... I'm trying to convert from deci to binary and print the binary number using the list method.
remain = 0
quo = 1
mynum = []
deci = int(raw_input("Please enter a decimal integer:"))
while quo != 0:
quo = deci / 2
remain = deci / 2
mynum.append(remain)
print(mylist)
for item in mynum:
print item
"I'm not getting it to print anything! I'll post the exact code I am working with... I'm trying to convert from deci to binary and print the binary number using the list method."
...
so you're trying to convert a number from decimal to binary??
here's a hint how to do that :)
number = 14
14 / 2 = 7, remainder = 0
7 / 2 = 3, remainder = 1
3 / 2 = 1, remainder = 1
1 / 2 = 0, remainder = 1
therefore 14 in binary is 1110
you can use l.insert( 0, num ) to deal with the reverse order, where l is a list
hope that helps! :)
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