Python service deployments failing due to Flask dependency issue

[daemon-joe]

Deployments of all Flask services (Search, Location, Offers, Recommendations, Videos) are failing with the following error:

Traceback (most recent call last):
  File "app.py", line 6, in <module>
    from aws_xray_sdk.ext.flask.middleware import XRayMiddleware
  File "/usr/local/lib/python3.8/site-packages/aws_xray_sdk/ext/flask/middleware.py", line 1, in <module>
    import flask.templating
  File "/usr/local/lib/python3.8/site-packages/flask/__init__.py", line 21, in <module>
    from .app import Flask, Request, Response
  File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 25, in <module>
    from . import cli, json
  File "/usr/local/lib/python3.8/site-packages/flask/json/__init__.py", line 21, in <module>
    from itsdangerous import json as _json
ImportError: cannot import name 'json' from 'itsdangerous' (/usr/local/lib/python3.8/site-packages/itsdangerous/__init__.py)

This is an occurrence of this Flask issue. The issue has been recognised by the Flask team.

Suggested fix:
Immediate: pin the following dependencies:

itsdangerous==1.1.0
markupsafe==1.1.1

Longer-term: upgrade Flask to a supported version, as 1.0.2 is no longer supported.

[BastLeblanc]

thanks for the fix, PR is merged