flask optional url parameter not working [closed]

flask optional url parameter not working [closed]

References

Reference NO 1

http://stackoverflow.com/questions/15166142/flask-optional-url-parameter-not-working

Reference NO 2

http://stackoverflow.com/questions/12871153/managing-parameters-of-url-in-flask-python

Reference NO 3

http://flask.pocoo.org/docs/api/

Reference NO 4

http://flask.readthedocs.org/en/0.3/api.html

Reference NO 5

http://blog.miguelgrinberg.com/post/designing-a-restful-api-with-python-and-flask

Reference NO 6

http://chaudet-dharaharsh.blogspot.com/2013/08/highcharts-query-parameters-issue-with.html

Reference NO 7

https://github.com/mitsuhiko/flask/blob/master/flask/helpers.py

Reference NO 8

http://www.reddit.com/r/flask/