#!/usr/bin/python

class FilterModule(object):
    def filters(self):
        return {
            'dict2str': self.dict2str
        }
    
    def dict2str(self, d, sep1='=', sep2=';', sep3=''):
        return sep2.join(
            [ str(k) + (sep1+str(v) if v!=None and v!='' else '') for k, v in d.items() ]
        ) + sep3


if __name__ == "__main__":
    # Tests
    filters = FilterModule()
    print(filters.filters())
    print(filters.dict2str(
        {"un": 1, "deux": 2, "str": "a string", "rien": None, "bool": True}
    ))