text_type is not defined in the documentation

[TaurusOlson]

Hi onyxfish,

I was following the tutorial of agate until I got a NameError because of the undefined variable text_type in the section Computing new columns with the line of code:

In [117]: full_names = exonerations.compute([
    ('full_name', agate.Formula(text_type, lambda row: '%(first_name)s %(last_name)s' % row))
])
---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-117-0432888c1ca8> in <module>()
      1 full_names = exonerations.compute([
----> 2     ('full_name', agate.Formula(text_type, lambda row: '%(first_name)s %(last_name)s' % row))
      3 ])

NameError: name 'text_type' is not defined

I guess something like:

text_type = agate.text.Text()

is missing.

[onyxfish]

Good catch! Yes, when I wrote the docs to use the type guesser I neglected to change this. The correct (simpler) line would be:

full_names = exonerations.compute([
    ('full_name', agate.Formula(agate.Text(), lambda row: '%(first_name)s %(last_name)s' % row))
])