Python - String Stored in a Variable showing as tuple

Question

I performing concatenation of multiple variables to a string and trying to store it in a list. I want the list to have the string but when i append the list in a loop, the value on the list is shown as tuple. Please help, New to python :)

When i Print :

print ( key +' ' +' =', amount1+' ' +' /',amount2+' ' +' /',pincrease)

Output is in str :

app1  = 53.58  / 54.81  / 2.24% lower.

When i append my list :

message = ( key +' ' +' =', amount1+' ' +' /',amount2+' ' +' /',pincrease)
message.append(mylist)
print(mylist)

output :

[('app1  =', '53.58  /', '54.81  /', '2.24% lower.')]

I would like to get the value as string in the list.. as

["app1  = 53.58  / 54.81  / 2.24% lower."]

I think you should print `message`, instead of `mylist` – HuLu ViCa Jul 07 '19 at 18:24 — HuLu ViCa, Jul 07 '19 at 18:24

score 2 · Answer 1 · answered Jul 07 '19 at 18:55

You code is actually working fine, but there is a some small mistake when you append your message into the list.

mylist.append(''.join(message))  # this step will remove your tuple
print(mylist)

# ["app1  = 53.58  / 54.81  / 2.24% lower."]

For more information check this question --> Python 3: Converting A Tuple To A String
If you want to format your string check this question --> Which is the preferred way to concatenate a string in Python?

score 1 · Accepted Answer · answered Jul 07 '19 at 18:26

First, this code:

( key +' ' +' =', amount1+' ' +' /',amount2+' ' +' /',pincrease)

is a tuple. You might consider using format strings instead of + for this kind of thing. Which would make it look more like this:

message = f'{key} = {amount1} / {amount2} / {pincrease}'
mylist.append(message)

Python - String Stored in a Variable showing as tuple

2 Answers2