I need to generate a list of items with number. For example:
item-1
item-2
item-3
..
item 246234
I'm trying to solve it with a while loop. Here is my code:
pages = []
page = 'item-'
nr = 1
last = 10
while nr <= last
page = page + str(nr)
pages.append(page)
nr += 1
But instead of desired result I got:
item-1
item-12
item-123
item-1234
and so on
How can I fix this problem?
Your page accumulates numbers in each iteration. Use another variable name inside the loop:
while nr <= last
pageX = page + str(nr)
pages.append(pageX)
nr += 1
Or add the page directly to the list, with no intermediate variable:
while nr <= last:
pages.append(page + str(nr))
nr += 1
Or use a for loop so you don't have to check and increment the number yourself:
for nr in range(1, last+1):
pages.append(page + str(nr))
Or a list comprehension to make the whole code shorter and (IMHO) more readable:
pages = ["item-" + str(nr) for nr in range(1, last+1)]
When you say page = ... you're overwriting the original "template" that you use every time. Just use a different variable:
while nr <= last:
current_page = page + str(nr)
pages.append(current_page)
nr += 1
Incidentally, this is much more clearly expressed in idiomatic python as follows:
pages = [f"item-{i}" for i in range(1, 11)]
You can do it in pythonic way:
pages = ['item-'+str(nr) for nr in range(1, last+1)]
Here is my way, loop till the last number of pages and append to list creating each page with the current index:
pages=[]
pagex = "item-"
for i in range(1,last+1):
page = pagex + str(i)
pages.append(page)
