Extract elements from dynamic list as increases or decreases in python

Question

Hello i have a dynamic list which increases or decreases accordingly from the extracted data from a site with BeautifulSoup

mylist = [a,b,c,d,.......]

how can i make the following fstring to be dynamic as the list increases or decreases?

fstr = print(f"the forecast for the week is (choose number): {nl}1. {mylist[0]}{nl}2. {mylist[1]}{nl}3. {mylist[2]}{nl}4. {mylist[3]}{nl}5. Show all week")

As you can see i want the elements of mylist to be seperated by \nl in the fstring and not join it to a string. Is this possible?

the Output is

the forecast for the week is (choose number): 
1. Tuesday 08  2022
2. Wednesday 09  2022
3. Thursday 10  2022
4. Friday 11  2022 

Answer 1

you could use the join method:

mylist = [1,2,3,4,5]
fstr = f'show this: {', '.join(mylist)}'

or you could do this:

fstr = f'show this: {str(mylist).removeprefix("[").removesuffix("]")}'

output:

show this: 1, 2, 3, 4, 5

to dynamically change the list, you would have a updater function, witch would update the values:

def update(values):
    globals()["fstr"] = f'show this: {', '.join(list1+values)}'

but is not or you could pass the entire list instead:

def update(mylist):
    globals()["fstr"] = f'show this: {', '.join(mylist)}'

to update them constantly, you would need a loop, like:

while updating:
    ... # updating the values

Answer 2

myCommaSeparatedValues = ', '.join(myList)

This should work, then insert this list into your fstr variable:

fstr = f"Show the following {myCommaSeparatedValues}"

---

NOTE: never call a variable list since you are overwriting the built-in class list. Call it myList instead.

---

In Python to print a newline you have to use the standard char '\n'.

I assume you have a nested list with this structure:

myList = [
    ['1', 'Monday', '08', 2022],
    ['2', 'Tuesday', '09', 2022]
]

You can print as you expected this way:

fstr = "The forecast for the week is (choose number):"
for i in myList:
    fstr += f"\n{' '.join(i)}"
print(fstr)