Develop Reference

App not compatible with buildpack , django heroku

Using buildpack: heroku/python but still it says not compatible
Please Help i am a beginner in django
Here is build log :
-----> Building on the Heroku-20 stack
-----> Using buildpack: heroku/python
-----> App not compatible with buildpack: https://buildpack-registry.s3.amazonaws.com/buildpacks/heroku/python.tgz
More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure
! Push failed
And here is the project :https://github.com/Shadow-Knight503/Meme_Site

In the root of your project rename requirements to requirements.txt.
This is a necessary to ensure Heroku can recognize a Python application.

Heroku python app failing to build when installing sqlite3

My Python app on Heroku failed to build consistently:
-----> Python app detected
! Python has released a security update! Please consider upgrading to python-3.6.8
Learn More: https://devcenter.heroku.com/articles/python-runtimes
-----> Found python-3.6.4, removing
-----> Installing python-3.6.7
-----> Installing pip
-----> Installing SQLite3
! Push rejected, failed to compile Python app.
! Push failed
It is a Django application that runs fine locally.
python-3.6.7 specified in runtime.txt, and I've tried other versions.
My Procfile contains:
release: python <appname>/manage.py migrate
web: python <appname>/manage.py runserver 0.0.0.0:$PORT
I could probably use gunicorn but that's irrelevant here. The build logs doesn't seem to provide me any information.
requirements.txt
chardet==3.0.4
Django==2.0.2
idna==2.6
pytz==2018.3
requests==2.18.4
urllib3==1.22
dj-database-url==0.5.0
setuptools==1.0.0

Try this in your app.json. Although it a temporary solution
"buildpacks": [
{
"url": "https://github.com/heroku/heroku-buildpack-python.git#remove-
sqlite"
},

See: https://travis-ci.org/heroku/heroku-buildpack-python
Upgrade the the stack from heroku-16 to heroku-18 in app.json.

Error while deploying Flask app on Heroku "Requested runtime not available for this stack"

I'm trying to deploy an app on Heroku. I have included the runtime.txt file and included the latest python version 3.6.3 as suggested, but I'm getting the following error.
-----> Python app detected
! The latest version of Python 3 is python-3.6.3 (you are using python 3.6.3, which is unsupported).
! We recommend upgrading by specifying the latest version (python-3.6.3).
Learn More: https://devcenter.heroku.com/articles/python-runtimes
-----> Installing python 3.6.3
! Requested runtime (python 3.6.3) is not available for this stack (heroku-16).
! Aborting. More info: https://devcenter.heroku.com/articles/python-support
! Push rejected, failed to compile Python app.
! Push failed

heroku can't find pip when I push app to it

When I try to push my django app to heroku it fails right at the beginning:
remote: -----> Python app detected
remote: -----> Installing python-3.5.1
remote: -----> Installing pip
remote: -----> Installing requirements with pip
remote: /app/tmp/buildpacks/779a8bbfbbe7e1b715476c0b23fc63a2103b3e4131eda558669aba8fb5e6e05682419376144189b29beb5dee6d7626b4d3385edb0954bffea6c67d8cf622fd51/
bin/steps/pip-install: line 5: /app/.heroku/python/bin/pip:
No such file or directory
remote: ! Push rejected, failed to compile Python app.
remote:
I apparently do something wrong, but I did the same thing many times before. What's wrong?

I had this exact same problem yesterday and it was really frustrating as I had deployed to Django before under the exact same settings with no problem.
In your runtime.txt file change it from:
python-3.5.1
to
python-3.6.1
Why changing the Python version on Heroku matters beats me but it worked like a charm.

Heroku push rejected for lack of python buildpack

I'm trying to deploy to heroku and have my requirements.txt, Procfile, and app.py file in the root directory. I created my heroku instance with heroku create --buildpack heroku/python but I still get
remote: ! Push rejected, failed to detect set buildpack heroku/python
remote: More info: https://devcenter.heroku.com/articles/buildpacks#detection-failure
remote:
remote: Verifying deploy...
remote:
remote: ! Push rejected to desolate-basin-41623.
remote:
I've gone onto several forums and can't really seem to figure out why that is. I'm also pushing from the master branch, which seems to be something people overlook.
I did, however, I initialized my git instance above the root directory.

I figured it out, it turns out that you do have to have github initialized inside of your root.