incorrect "ValueError: $ref circular references found!" in parser

[ubyjvovk]

Given two files,

testing.yml

swagger: '2.0'
info:
  version: "0.1.1"
  title: test Application

paths:
  /account:
    get:
      responses:
        '200':
          description: the status of an account
          schema:
            properties:
              account:
                $ref: '#/definitions/Account'

definitions:
  $ref: 'testdef.yml'

and testdef.yml:

Account:
  type: object
  required:
    - emailAddress
  properties:
    emailAddress:
      type: string
    installationInformation:
      $ref: '#/InstallationInformation'


InstallationInformation:
  description: A collection of information that describes an instance of the application and what device it is running on.
  properties:
    OSType:
      type: string
      description:
        Android or Apple or other

They validate ok:

schemas$ swagger validate testing.yml 
testing.yml is valid

but swagger_py_codegen stumbles on $refs:

$ swagger_py_codegen  --swagger-doc schemas/testing.yml -p api app --ui --spec
Traceback (most recent call last):
  File "/home/d/venv/tm/bin/swagger_py_codegen", line 11, in <module>
    sys.exit(generate())
  File "/home/d/venv/tm/local/lib/python2.7/site-packages/click/core.py", line 700, in __call__
    return self.main(*args, **kwargs)
  File "/home/d/venv/tm/local/lib/python2.7/site-packages/click/core.py", line 680, in main
    rv = self.invoke(ctx)
  File "/home/d/venv/tm/local/lib/python2.7/site-packages/click/core.py", line 873, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/d/venv/tm/local/lib/python2.7/site-packages/click/core.py", line 508, in invoke
    return callback(*args, **kwargs)
  File "/home/d/venv/tm/local/lib/python2.7/site-packages/swagger_py_codegen/command.py", line 77, in generate
    swagger = Swagger(data)
  File "/home/d/venv/tm/local/lib/python2.7/site-packages/swagger_py_codegen/parser.py", line 29, in __init__
    self._references_sort()
  File "/home/d/venv/tm/local/lib/python2.7/site-packages/swagger_py_codegen/parser.py", line 67, in _references_sort
    raise ValueError(msg)
ValueError: $ref circular references found!

[ciacicode]

Got the same problem here. Is there a way I can get past this while it's getting fixed?

[RakiP]

this problem still persists

[gusibi]

@debdude
this problem fixed

but need to modify the testdef.yml file

$ref: '#/InstallationInformation' ->  $ref: '#/definitions/InstallationInformation'