Νικόλαος Κούρας writes:
> So that means that
>
> for host, hits, agent, date in dataset:
>
> is:
>
> for host, hits, agent, date in (foo,7,IE6,1/1/11)
>
> and then:
>
> for host, hits, agent, date in (bar,42,Firefox,2/2/10)
>
> and then:
>
> for host, hits, agent, date in (baz,4,Chrome,3/3/09)
>
>
> So 'dataset' is one row at each time?
> but we said that 'dataset' represent the whole result set.
> So isnt it wrong iam substituting it with one line per time only?
Forget the database and meditate on simpler examples like this:
>>> xy = zip("abc", "123")
>>> for x, y in xy: print(x, y)
...
('a', '1')
('b', '2')
('c', '3')
>>> for x, y in xy: print(xy)
...
[('a', '1'), ('b', '2'), ('c', '3')]
[('a', '1'), ('b', '2'), ('c', '3')]
[('a', '1'), ('b', '2'), ('c', '3')]
>>>
Or, for that matter, even simpler examples like this:
>>> bag = "abc"
>>> for x in bag: print(x)
...
a
b
c
>>> for x in bag: print(bag)
...
abc
abc
abc
>>>
And this:
>>> a, b, c = bag
>>> a, b, c
('a', 'b', 'c')
>>> bag
'abc'
>>>
Go to the Python command line and try things out.
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