Converting tuple into list does not work

Question

I query my SQlite Database with a loop to retrieve data from it.

connector = sqlite3.connect("somedb.db")
selecter = connector.cursor()
selecter.execute(''' SELECT somedata FROM somedb''')
for row in selecter:
    l = list(row)
    print (l)
    print (type(l))

Then I try do use formatting to append the retrieved data to something else

this = detect.that( "{}", pick, summary).format(l)

But it comes back with this:

AttributeError: 'tuple' object has no attribute 'format'

I also tried this

s = " ".join(str(row) for row in selecter)

for the l = list(row) statement but it comes back with the same errormessage and it seems that it converts all my 50 separate selections into one string what I dont want.

However, when I run this

print (type(l))

or

print (type(s))

it returns me list or string as a type. So the converting worked, but the .format does not take it because it thinks it is a tuple.

How comes?

Answer 1

将您的detect.that行更改为：

this = str(detect.that("{}", pick, summary)).format(1)