[Migrated] Flask_Ask 500 Internal error with Zappa

[jneves]

Originally from: Miserlou/Zappa#933 by libert-xyz

Context

Hi, I followed this tutorial to deploy an Alexa Skill with Zappa: video and I'm getting a 500 error

Expected Behavior

My skill should work from Alexa(works locally with ngrok)

Actual Behavior

Output from AWS API Gateway

"{u'message': u'An uncaught exception happened while servicing this request. You can investigate this with the zappa tail command.', u'traceback': ['Traceback (most recent call last):\\n', ' File \"/var/task/handler.py\", line 433, in handler\\n response = Response.from_app(self.wsgi_app, environ)\\n', ' File \"/tmp/pip-build-jW5QZX/Werkzeug/werkzeug/wrappers.py\", line 903, in from_app\\n', ' File \"/tmp/pip-build-jW5QZX/Werkzeug/werkzeug/wrappers.py\", line 57, in _run_wsgi_app\\n', ' File \"/tmp/pip-build-jW5QZX/Werkzeug/werkzeug/test.py\", line 884, in run_wsgi_app\\n', \"TypeError: 'NoneType' object is not callable\\n\"]}"

Steps to Reproduce

1. source venv/bin/activate
2. pip install flask_ask zappa
3. zappa init / zappa deploy dev

Environment

• Zappa version used: zappa==0.42.1
• Operating System and Python version: Ubuntu / Python 2.7
• pip freezeaniso8601==1.2.0 argcomplete==1.8.2 asn1crypto==0.22.0 base58==0.2.4 boto3==1.4.4 botocore==1.5.40 certifi==2017.4.17 cffi==1.10.0 chardet==3.0.4 click==6.7 cryptography==1.9 docutils==0.13.1 durationpy==0.4 enum34==1.1.6 Flask==0.12.1 Flask-Ask==0.9.3 future==0.16.0 futures==3.1.1 hjson==2.0.7 idna==2.5 ipaddress==1.0.18 itsdangerous==0.24 Jinja2==2.9.6 jmespath==0.9.3 kappa==0.6.0 lambda-packages==0.15.1 MarkupSafe==1.0 placebo==0.8.1 pycparser==2.17 pyOpenSSL==17.0.0 python-dateutil==2.6.0 python-slugify==1.2.4 PyYAML==3.12 requests==2.18.1 s3transfer==0.1.10 six==1.10.0 toml==0.9.2 tqdm==4.14.0 troposphere==1.9.4 Unidecode==0.4.20 urllib3==1.21.1 Werkzeug==0.12 wsgi-request-logger==0.4.6 zappa==0.42.1
• zappa_settings.json

{
    "dev": {
        "app_function": "skill.app", 
        "profile_name": "default", 
        "s3_bucket": "zapa-XXXX"
    }
}

Any thoughts?