[Tutor] Type error: must be string or read-only character buffer, not seq

[Peter Otten]

Kann Vearasilp wrote:

> I tried concatenating string variables with multiple strings and have the
> file handle write the statement into a file. I don't know why I always get
> the type error: must be string or read-only character buffer, not seq
> error. I tried casting the whole new concatenated string using str(), but
> was not successful as well. Do you have any clue why this happen?

>  52         str(statement)
>  53         insert.write(statement)

Line 52 doesn't do what you think it does -- it converts statement to a 
string and then discards the result.

Try

statement = str(statement)
insert.write(statement)

or

insert.write(str(statement))

instead.