Path parameters converted to integers

[HeliosAnavatis]

Fairly new to Python and Connexion.

I have a definition:

  - in: path
    name: orgid
    schema:
      type: string
    required: true
    description: ID of the organisation

and the function that provides information on this URL:
def getOrgById (schemeid,orgid):

Some organisation ids are all numeric. I can convert them to a string, and that's fine but if the organisation id starts with a '0', it gets lopped off.
/organisations/1234
is OK but
/organisations/0563
breaks - because the value of orgid in the function is '563' .

How can I ensure that the parameter is passed to the function as a string and not an integer? Specifying it as a string in the YAML ought to be enough, I'd have thought.