instructions for apispec example are underspecified, causing TypeError

[jab]

New to flasgger and was interested in the apispec example, but unfortunately the instructions seem out of date?

Quoting https://github.com/rochacbruno/flasgger#readme

Flasgger also supports Marshmallow APISpec as base template for specification, if you are using APISPec from Marshmallow take a look at apispec example.
...
NOTE: If you want to use Marshmallow Schemas you also need to run pip install marshmallow apispec

Is some non-latest version of one of these required? Following the instructions as written results in apispec-0.39.0 and marshmallow-2.15.4, which results in TypeError when running the apispec example:

jab@pro ~> python3 -m virtualenv tmpvenv
Using base prefix '/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7'
/usr/local/lib/python3.7/site-packages/virtualenv.py:1041: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
  import imp
New python executable in /Users/jab/tmpvenv/bin/python3.7
Also creating executable in /Users/jab/tmpvenv/bin/python
Installing setuptools, pip, wheel...done.

jab@pro ~> cd tmpvenv

jab@pro ~/tmpvenv> . bin/activate.fish

(tmpvenv) jab@pro ~/tmpvenv> pip install flasgger
Collecting flasgger
  Using cached https://files.pythonhosted.org/packages/59/25/d25af3ebe1f04f47530028647e3476b829b1950deab14237948fe3aea552/flasgger-0.9.0-py2.py3-none-any.whl
Collecting PyYAML>=3.0 (from flasgger)
Collecting six>=1.10.0 (from flasgger)
  Using cached https://files.pythonhosted.org/packages/67/4b/141a581104b1f6397bfa78ac9d43d8ad29a7ca43ea90a2d863fe3056e86a/six-1.11.0-py2.py3-none-any.whl
Collecting mistune (from flasgger)
  Using cached https://files.pythonhosted.org/packages/c8/8c/87f4d359438ba0321a2ae91936030110bfcc62fef752656321a72b8c1af9/mistune-0.8.3-py2.py3-none-any.whl
Collecting jsonschema>=2.5.1 (from flasgger)
  Using cached https://files.pythonhosted.org/packages/77/de/47e35a97b2b05c2fadbec67d44cfcdcd09b8086951b331d82de90d2912da/jsonschema-2.6.0-py2.py3-none-any.whl
Collecting Flask>=0.10 (from flasgger)
  Using cached https://files.pythonhosted.org/packages/7f/e7/08578774ed4536d3242b14dacb4696386634607af824ea997202cd0edb4b/Flask-1.0.2-py2.py3-none-any.whl
Collecting Werkzeug>=0.14 (from Flask>=0.10->flasgger)
  Using cached https://files.pythonhosted.org/packages/20/c4/12e3e56473e52375aa29c4764e70d1b8f3efa6682bef8d0aae04fe335243/Werkzeug-0.14.1-py2.py3-none-any.whl
Collecting itsdangerous>=0.24 (from Flask>=0.10->flasgger)
Collecting click>=5.1 (from Flask>=0.10->flasgger)
  Using cached https://files.pythonhosted.org/packages/34/c1/8806f99713ddb993c5366c362b2f908f18269f8d792aff1abfd700775a77/click-6.7-py2.py3-none-any.whl
Collecting Jinja2>=2.10 (from Flask>=0.10->flasgger)
  Using cached https://files.pythonhosted.org/packages/7f/ff/ae64bacdfc95f27a016a7bed8e8686763ba4d277a78ca76f32659220a731/Jinja2-2.10-py2.py3-none-any.whl
Collecting MarkupSafe>=0.23 (from Jinja2>=2.10->Flask>=0.10->flasgger)
Installing collected packages: PyYAML, six, mistune, jsonschema, Werkzeug, itsdangerous, click, MarkupSafe, Jinja2, Flask, flasgger
Successfully installed Flask-1.0.2 Jinja2-2.10 MarkupSafe-1.0 PyYAML-3.13 Werkzeug-0.14.1 click-6.7 flasgger-0.9.0 itsdangerous-0.24 jsonschema-2.6.0 mistune-0.8.3 six-1.11.0

(tmpvenv) jab@pro ~/tmpvenv> pip install marshmallow apispec
Collecting marshmallow
  Using cached https://files.pythonhosted.org/packages/67/7d/5435c399acecd4398d77ef31ea80e02cee5368599ce6a980f9014e8ec5fd/marshmallow-2.15.4-py2.py3-none-any.whl
Collecting apispec
  Using cached https://files.pythonhosted.org/packages/55/81/9f54520d3cb03ffb207ccef01298c037dcec83a111ec838aed971c7f9bf2/apispec-0.39.0-py2.py3-none-any.whl
Requirement already satisfied: PyYAML>=3.10 in ./lib/python3.7/site-packages (from apispec) (3.13)
Installing collected packages: marshmallow, apispec
Successfully installed apispec-0.39.0 marshmallow-2.15.4

(tmpvenv) jab@pro ~/tmpvenv> curl -O 'https://raw.githubusercontent.com/rochacbruno/flasgger/master/examples/apispec_example.py'
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  1527  100  1527    0     0  17232      0 --:--:-- --:--:-- --:--:-- 17352

(tmpvenv) jab@pro ~/tmpvenv> python apispec_example.py
Traceback (most recent call last):
  File "apispec_example.py", line 15, in <module>
    'apispec.ext.marshmallow',
TypeError: APISpec() takes no arguments

[javabrett]

There was a known issue in flasgger 0.9.0 caused by a change in apispec API, so hopefully this is a duplicate of #205 . flasgger 0.9.1 is just released - can you try again with the new release?