gocept.country 0.3

ISO 3166 countries

To get a list of ISO 3166 countries in a webform, you can use the zope.schema.Choice field and provide the gocept.country.countries as source:

>>> countries_field = zope.schema.Choice(title=u'Country',
...                            source=gocept.country.countries)
>>> countries_field
<zope.schema._field.Choice object at 0x...>
>>> countries = iter(countries_field.source)

The gocept.country.countries sourcefactory returns Country objects as values, which use the values from pycountry:

>>> afghanistan = countries.next()
>>> afghanistan
<gocept.country.db.Country object at 0x...>
>>> afghanistan.name
u'Afghanistan'

Calling the next() method again returns the next country from the source:

>>> islands = countries.next()
>>> islands.name
u'\xc5land Islands'

There are all information available, which you can get from pycountry:

>>> afghanistan.alpha2
'AF'
>>> afghanistan.alpha3
'AFG'
>>> afghanistan.numeric
'004'
>>> afghanistan.official_name
'Islamic Republic of Afghanistan'

ISO 15924 Scripts

Scripts are similar to countries:

>>> scripts_field = zope.schema.Choice(title=u'Script',
...                            source=gocept.country.scripts)
>>> scripts = iter(scripts_field.source)

>>> arabic = scripts.next()
>>> arabic.name
u'Arabic'

>>> aramaic = scripts.next()
>>> aramaic.name
u'Imperial Aramaic'

ISO 4217 Currencies

Currencies are, again, similar to the ones before:

>>> currencies_field = zope.schema.Choice(title=u'Currency',
...                            source=gocept.country.currencies)

>>> currencies = iter(currencies_field.source)

>>> dirham = currencies.next()
>>> dirham.name
u'UAE Dirham'

>>> afghani = currencies.next()
>>> afghani.name
u'Afghani'

ISO 639 Languages

Languages are similar, too:

>>> languages_field = zope.schema.Choice(title=u'Language',
...                            source=gocept.country.languages)

>>> languages = iter(languages_field.source)

>>> afar = languages.next()
>>> afar.name
u'Afar'

>>> abkhazian = languages.next()
>>> abkhazian.name
u'Abkhazian'

Translations

First we fetch a specific country:

>>> countries = list(iter(countries_field.source))
>>> germany = countries[80]
>>> germany.name
u'Germany'

The i18n translate method translates ‘Germany’ into german:

>>> zope.i18n.translate(germany.name, target_language='de')
u'Deutschland'

Translations are also operating for scripts, currencies and languages.

Comparison

Countries, scripts, currenties and languages can be compared to equality. To test this, we will need another country object afghanistan, which is not the same object as retrieved before:

>>> countries = iter(countries_field.source)
>>> afghanistan = countries.next()
>>> countries = iter(countries_field.source)
>>> afghanistan2 = countries.next()

>>> str(afghanistan) == str(afghanistan2)
False

Comparing them will get the token for each and compare it:

>>> afghanistan == afghanistan2
True

Pickling and unpickling

It should be possible to store “proxy objects” in a database (like the ZODB). Therefore, they have to be pickleable:

>>> import StringIO
>>> import cPickle
>>> f = StringIO.StringIO('')
>>> f.read()
''

Pickling a country should never raise an error…

>>> cPickle.dump(afghanistan, f)

… and results in storing the token in the pickle:

>>> f.seek(0)
>>> 'AF' in f.read()
True

Reading the pickle again will return the same country which was pickled before:

>>> f.seek(0)
>>> afghanistan2 = cPickle.load(f)
>>> afghanistan2 == afghanistan
True
>>> afghanistan2.name
u'Afghanistan'

Changes