RuntimeError: dictionary keys changed during iteration

[SharjeelBaig0508]

I'm using MongoDB with flask profiler and when I used the filtering feature of flask profiler and checked the logs of my app it returns:

2021-11-20T08:34:14.991801+00:00 app[web.1]: [2021-11-20 08:34:14 +0000] [10] [ERROR] Error handling request /flask-profiler/api/measurements/?method=POST&name=%2Fapi%2Fv1%2Ftest%2Fread&elapsed=0&sort=startedAt%2Cdesc&skip=0&limit=100&startedAt=1636878787&endedAt=1637397187
2021-11-20T08:34:14.991808+00:00 app[web.1]: Traceback (most recent call last):
2021-11-20T08:34:14.991809+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/gunicorn/workers/sync.py", line 136, in handle
2021-11-20T08:34:14.991809+00:00 app[web.1]: self.handle_request(listener, req, client, addr)
2021-11-20T08:34:14.991810+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/gunicorn/workers/sync.py", line 179, in handle_request
2021-11-20T08:34:14.991810+00:00 app[web.1]: respiter = self.wsgi(environ, resp.start_response)
2021-11-20T08:34:14.991810+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/flask/app.py", line 2088, in call
2021-11-20T08:34:14.991811+00:00 app[web.1]: return self.wsgi_app(environ, start_response)
2021-11-20T08:34:14.991811+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/flask/app.py", line 2073, in wsgi_app
2021-11-20T08:34:14.991811+00:00 app[web.1]: response = self.handle_exception(e)
2021-11-20T08:34:14.991811+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/flask/app.py", line 2070, in wsgi_app
2021-11-20T08:34:14.991812+00:00 app[web.1]: response = self.full_dispatch_request()
2021-11-20T08:34:14.991812+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/flask/app.py", line 1515, in full_dispatch_request
2021-11-20T08:34:14.991812+00:00 app[web.1]: rv = self.handle_user_exception(e)
2021-11-20T08:34:14.991813+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/flask/app.py", line 1513, in full_dispatch_request
2021-11-20T08:34:14.991813+00:00 app[web.1]: rv = self.dispatch_request()
2021-11-20T08:34:14.991813+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/flask/app.py", line 1499, in dispatch_request
2021-11-20T08:34:14.991813+00:00 app[web.1]: return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
2021-11-20T08:34:14.991813+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/flask_httpauth.py", line 172, in decorated
2021-11-20T08:34:14.991814+00:00 app[web.1]: return self.ensure_sync(f)(*args, **kwargs)
2021-11-20T08:34:14.991814+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/flask_profiler/flask_profiler.py", line 194, in filterMeasurements
2021-11-20T08:34:14.991815+00:00 app[web.1]: return jsonify({"measurements": list(measurements)})
2021-11-20T08:34:14.991815+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/flask_profiler/storage/mongo.py", line 81, in
2021-11-20T08:34:14.991815+00:00 app[web.1]: return (self.clearify(record) for record in cursor)
2021-11-20T08:34:14.991815+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.9/site-packages/flask_profiler/storage/mongo.py", line 251, in clearify
2021-11-20T08:34:14.991816+00:00 app[web.1]: for k, v in obj.items():
2021-11-20T08:34:14.991816+00:00 app[web.1]: RuntimeError: dictionary keys changed during iteration

I investigated on flask-profiler/storage/mongo.py and noticed this error and found a solution for this:

Suggested Solution:

in flask-profiler/flask_profiler/storage/mongo.py at line 251:
Just replace for k, v in obj.items(): with for k, v in dict(obj.items()):