Ladon can't understand primitive bool

[Carlos Jenkins Pérez]

Ladon 0.7.0 is unable to understand bool primitive as parameter of a function:

********************* services.py
from ladon.ladonizer import ladonize

class Services(object):

    @ladonize(bool, rtype=unicode)
    def do_something(self, foo):
        if foo:
            return u'Yes!'
        return u'No!'

********************* client.py
from ladon.clients.jsonwsp import JSONWSPClient

service = JSONWSPClient('http://localhost:8080/Services/jsonwsp/description')
print service.do_something(foo=True).response_dict
print service.do_something(foo=False).response_dict

********************* Output (two times)
{u'fault': {u'detail': [u'Traceback (most recent call last):', u' File "/usr/local/lib/python2.7/dist-packages/ladon/server/dispatcher.py", line 142, in dispatch_request', u' result = self.call_method(method,req_dict,tc,export_dict)', u' File "/usr/local/lib/python2.7/dist-packages/ladon/server/dispatcher.py", line 73, in call_method', u" args += [tc.from_unicode_string(val,arg['type'])]", u' File "/usr/local/lib/python2.7/dist-packages/ladon/types/typeconverter.py", line 36, in from_unicode_string', u' raise NonUnicodeError(type(val))', u"NonUnicodeError: Values mut be unicode while converting from string to Ladon supported types: encountered <type 'bool'>", u''], u'code': u'server', u'lineno': 149, u'string': u"Values mut be unicode while converting from string to Ladon supported types: encountered <type 'bool'>", u'filename': u'dispatcher'}, u'version': u'1.0', u'type': u'jsonwsp/fault'}

The relevant part is at line 36 in /usr/local/lib/python2.7/dist-packages/ladon/types/typeconverter.py:

                # Check the value type
                if not type(val) == PORTABLE_STRING:
                        raise NonUnicodeError(type(val))

But val is bool.

Kind regards

[jsgaarde (jakob-simon-gaarde)]

Hi Carlos.

Unfortunately this is not a Ladon bug - it seems that the "loads" function in the standard module "json" has a bug (Python 2.7). Using the "parse_constant" keyword seems to have no effect at all.

I have reported the problem: http://bugs.python.org/issue14692

/ Jakob

[jsgaarde (jakob-simon-gaarde)]

I have created a fix for this bug.
/ Jakob

[Carlos Jenkins Pérez (carlos.jenkins)]

Thank you very much Jakob, really appreciated.

The workarround I'm using is:

print service.do_something(foo=str(True)).response_dict

The interface haven't changed, it seem that if the boolean is converted to
str first Ladon will nevertheless undestand it as boolean.

Kind regards

--
Carlos Jenkins
http://carlos.jenkins.co.cr/