[Tutor] joining strings using arrays and string variables.

[Alan Gauld]

On 07/02/2021 11:06, mhysnm1964 at gmail.com wrote:

>>>> a = ['hello','fred','and','tom']
> 
>>>> b = '/'.join(['welcome', 'the', 'following', a])
> 
> 
> Traceback (most recent call last):
> TypeError: sequence item 3: expected str instance, list found

The problem is that a is a list. You need to flatten the two
lists into a single list.

+ will do that
>>> [1,2,3]+[4,5,6]
[1,2,3,4,5,6]

So in your case:

b = '/'.join(['welcome', 'the', 'following'] + a)


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Alan G
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