Update python version to 3.4.3 in Chapter 11 - Deploy!

[ProProgrammer]

No description provided.

[asendecka]

Thank you! 🏆

[ProProgrammer]

Apologies, creating another pull request to revert the changes in this pull request as it turns out that heroku doesn't support python-3.4.3 runtime as of now (https://devcenter.heroku.com/articles/python-support#supported-runtimes)

When I tried to deploy the app with python-3.4.3 runtime, I observed this error:

(myvenv) C:\Study\Django\FirstDjangoApp>git push heroku master
Counting objects: 19, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (16/16), done.
Writing objects: 100% (19/19), 3.61 KiB | 0 bytes/s, done.
Total 19 (delta 0), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Python app detected
remote: -----> Stack changed, re-installing runtime
remote: -----> Installing runtime (python-3.4.3)
remote:  !     Requested runtime (python-3.4.3) is not available for this stack (cedar-14).
remote:  !     Aborting.  More info: https://devcenter.heroku.com/articles/python-support
remote:
remote:  !     Push rejected, failed to compile Python app
remote:
remote: Verifying deploy...
remote:
remote: !       Push rejected to dsdjangoapp.
remote:
To https://git.heroku.com/dsdjangoapp.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/dsdjangoapp.git'

[asendecka]

Ah, good catch!