What is the difference between
("a")
and
("a",)
I noticed that for example mysql wrapper parameters formatting doesn’t work with the first case, it must end with comma.
cursorA.execute(query, (url,))
Advertisement
Answer
if you write only one element in parentheses (), the parentheses () are ignored and not considered a tuple.
x = ("a") print(type(x))
output: str
to generate a one-element tuple, a comma ,
is needed at the end.
x = ("a", ) print(type(x))
ouput : tuple