When I print my code I don't want “..” to print yet

Question

Is there a way that I still get the ".." further in the code, but don't have ".." till after "1+"

eg. n = 2 *my code at the moment will output

..1+..1+2+..

*i want my code to output

1+..1+2+..

def nested_increasing_additions(n):
    ans = ""
    n = n + 1
    for i in range(1,(n+1)):
        for k in range(1,i):
            ans = ans + str(k) + "+"

        ans = ans + ".."

    return ans 
print(nested_increasing_additions(1))

Answer 1

You can add the .. only if ans is not empty:

def nested_increasing_additions(n):
    ans = ""
    n = n + 1
    for i in range(1,(n+1)):
        for k in range(1,i):
            ans = ans + str(k) + "+"

        if ans:
            ans = ans + ".."

    return ans 
print(nested_increasing_additions(1))

Answer 2

i think you want it as below, i tested your code from the post it print

..1+..

def nested_increasing_additions(n):
    ans = ""
    for i in range(1,(n+2)):
        for k in range(1,i+1):
            ans = ans + str(k) + "+"    
        ans = ans + ".."
    return ans 

print(nested_increasing_additions(1))
# 1+..1+2+..