Herokuでのapplication errorで困っています

Question

前提・実現したいこと

pythonで'Hello, Heroku!'と表示させたいです。
デプロイには成功しましたが、ページを開くとapplication errorになってしまい、行き詰っています。logではH10エラーが出ていました。

発生している問題・エラーメッセージ

2020-01-13T05:19:27.608709+00:00 app[api]: Enable Logplex by user [e-mail]
2020-01-13T05:19:27.608709+00:00 app[api]: Release v2 created by user [e-mail]
2020-01-13T05:19:27.220948+00:00 app[api]: Release v1 created by user [e-mail]
2020-01-13T05:19:27.220948+00:00 app[api]: Initial release by user [e-mail]
2020-01-13T05:21:54.332960+00:00 heroku[router]: at=info code=H81 desc="Blank app" method=GET path="/" host=floating-chamber-08908.herokuapp.com request_id=08e028e4-c895-4dc9-926e-eeaac281dfa3 fwd="14.13.108.129" dyno= connect= service= status=502 bytes= protocol=https
2020-01-13T05:24:39.000000+00:00 app[api]: Build started by user [e-mail]
2020-01-13T05:25:08.467783+00:00 app[api]: Scaled to web@1:Free by user [e-mail]
2020-01-13T05:25:08.404489+00:00 app[api]: Deploy 45575020 by user [e-mail]
2020-01-13T05:25:08.404489+00:00 app[api]: Release v3 created by user [e-mail]
2020-01-13T05:25:11.826323+00:00 heroku[web.1]: Starting process with command `python:app.py`
2020-01-13T05:25:14.120892+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T05:25:14.124137+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-13T05:25:14.108221+00:00 heroku[web.1]: Process exited with status 127
2020-01-13T05:25:14.019831+00:00 app[web.1]: bash: python:app.py: command not found
2020-01-13T05:25:17.574659+00:00 heroku[web.1]: Starting process with command `python:app.py`
2020-01-13T05:25:17.000000+00:00 app[api]: Build succeeded
2020-01-13T05:25:19.257877+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T05:25:19.238326+00:00 heroku[web.1]: Process exited with status 127
2020-01-13T05:25:19.188671+00:00 app[web.1]: bash: python:app.py: command not found
2020-01-13T05:25:31.686489+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=floating-chamber-08908.herokuapp.com request_id=215e7a72-a3b9-4021-a97a-04d2dbbfaed0 fwd="14.13.108.129" dyno= connect= service= status=503 bytes= protocol=https
2020-01-13T05:25:32.530326+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=floating-chamber-08908.herokuapp.com request_id=596c9347-f59f-4b0c-9e7f-0469db4ca565 fwd="14.13.108.129" dyno= connect= service= status=503 bytes= protocol=https
2020-01-13T06:04:38.277965+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-13T06:04:42.256866+00:00 heroku[web.1]: Starting process with command `python:app.py`
2020-01-13T06:04:44.753237+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T06:04:44.728360+00:00 heroku[web.1]: Process exited with status 127
2020-01-13T06:04:44.681021+00:00 app[web.1]: bash: python:app.py: command not found
2020-01-13T06:47:48.181883+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-13T06:47:51.680529+00:00 heroku[web.1]: Starting process with command `python:app.py`
2020-01-13T06:47:53.347871+00:00 heroku[web.1]: Process exited with status 127
2020-01-13T06:47:53.362002+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T06:47:53.299238+00:00 app[web.1]: bash: python:app.py: command not found
2020-01-13T08:18:34.758437+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-13T08:18:38.290592+00:00 heroku[web.1]: Starting process with command `python:app.py`
2020-01-13T08:18:39.792820+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T08:18:39.733966+00:00 app[web.1]: bash: python:app.py: command not found
2020-01-13T08:18:39.775849+00:00 heroku[web.1]: Process exited with status 127
2020-01-13T10:58:41.184266+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=floating-chamber-08908.herokuapp.com request_id=fef0c95c-acc2-4ac4-b47b-a597e4189483 fwd="14.13.108.129" dyno= connect= service= status=503 bytes= protocol=https
2020-01-13T10:58:41.866324+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=floating-chamber-08908.herokuapp.com request_id=ba84b2ed-065a-4665-9ebc-1652d0e20123 fwd="14.13.108.129" dyno= connect= service= status=503 bytes= protocol=https
2020-01-13T11:21:37.333431+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=floating-chamber-08908.herokuapp.com request_id=c41fbaf5-c332-428d-a4df-91b0d717f16e fwd="14.13.108.129" dyno= connect= service= status=503 bytes= protocol=https
2020-01-13T11:21:47.065395+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=floating-chamber-08908.herokuapp.com request_id=fe3ee9da-2678-4479-85bc-885d985a4bcf fwd="14.13.108.129" dyno= connect= service= status=503 bytes= protocol=https
2020-01-13T11:23:05.000000+00:00 app[api]: Build started by user [e-mail]
2020-01-13T11:23:38.935595+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-13T11:23:38.753502+00:00 app[api]: Deploy 95ea518e by user [e-mail]
2020-01-13T11:23:38.753502+00:00 app[api]: Release v4 created by user [e-mail]
2020-01-13T11:23:43.320197+00:00 heroku[web.1]: Starting process with command `python app.py`
2020-01-13T11:23:45.579269+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T11:23:45.583394+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-13T11:23:45.512668+00:00 app[web.1]: Hello Heroku!
2020-01-13T11:23:45.565110+00:00 heroku[web.1]: Process exited with status 0
2020-01-13T11:23:47.000000+00:00 app[api]: Build succeeded
2020-01-13T11:23:49.526160+00:00 heroku[web.1]: Starting process with command `python app.py`
2020-01-13T11:23:51.569643+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T11:23:51.491411+00:00 app[web.1]: Hello Heroku!
2020-01-13T11:23:51.553923+00:00 heroku[web.1]: Process exited with status 0
2020-01-13T12:00:48.902939+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-13T12:00:53.321532+00:00 heroku[web.1]: Starting process with command `python app.py`
2020-01-13T12:00:55.800022+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T12:00:55.786630+00:00 heroku[web.1]: Process exited with status 0
2020-01-13T12:00:55.698704+00:00 app[web.1]: Hello Heroku!
2020-01-13T13:07:24.446869+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-13T13:07:28.961451+00:00 heroku[web.1]: Starting process with command `python app.py`
2020-01-13T13:07:31.761429+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T13:07:31.743665+00:00 heroku[web.1]: Process exited with status 0
2020-01-13T13:07:31.641870+00:00 app[web.1]: Hello Heroku!
2020-01-13T13:28:16.539308+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=floating-chamber-08908.herokuapp.com request_id=51edd708-35ab-4c79-9dce-e066d5047595 fwd="14.13.108.129" dyno= connect= service= status=503 bytes= protocol=https
2020-01-13T13:29:33.211855+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=floating-chamber-08908.herokuapp.com request_id=85752f9b-9ef1-4547-bfca-ee6beba17e5f fwd="14.13.108.129" dyno= connect= service= status=503 bytes= protocol=https
2020-01-13T13:30:38.970908+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-13T13:30:43.943123+00:00 heroku[web.1]: Starting process with command `python app.py`
2020-01-13T13:30:46.626893+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T13:30:46.630629+00:00 heroku[web.1]: State changed from crashed to starting
2020-01-13T13:30:46.552282+00:00 app[web.1]: Hello Heroku!
2020-01-13T13:30:46.610464+00:00 heroku[web.1]: Process exited with status 0
2020-01-13T13:30:50.666567+00:00 heroku[web.1]: Starting process with command `python app.py`
2020-01-13T13:30:52.790497+00:00 heroku[web.1]: State changed from starting to crashed
2020-01-13T13:30:52.770341+00:00 heroku[web.1]: Process exited with status 0
2020-01-13T13:30:52.721807+00:00 app[web.1]: Hello Heroku!
2020-01-13T13:31:16.546825+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=floating-chamber-08908.herokuapp.com request_id=1faaa268-54e3-4a97-93a3-ddaf125c215a fwd="14.13.108.129" dyno= connect= service= status=503 bytes= protocol=https

###現状のコード
app.py

print('Hello Heroku!')

Procfile

web: python app.py

requirements.txt

certifi==2019.11.28
chardet==3.0.4
Click==7.0
Flask==1.1.1
idna==2.8
itsdangerous==1.1.0
Jinja2==2.10.3
MarkupSafe==1.1.1
requests==2.22.0
urllib3==1.25.7
virtualenv==16.7.9
Werkzeug==0.16.0

runtime.txt

python-3.8.1

###アプリ構造
.git
myenv
app.py
Procfile
requirements.txt
runtime.txt

試したこと

Herokuの再起動
コードの見直し

補足情報（FW/ツールのバージョンなど）

Windows10
Python3.8.1

Comments

[退会済みユーザー]

2020-01-13T05:21:54.332960+00:00 heroku[router]: at=info code=H81

[yuokada]

pythonのスクリプトも質問に追加出来ませんか？

[piyopiyo1234]

スクリプト追加いたしました。

Answer 1

そのスクリプトでは全く動かないと思うので公式のチュートリアルなどを参考にHello Worldを実装した方が良いと思います。

• Python開発者のためのHeroku入門 - YouTube
• Python | Heroku Dev Center
• Getting Started on Heroku with Python | Heroku Dev Center
• Flaskチュートリアル + herokuにデプロイ - Qiita

Comments

[piyopiyo1234]

回答ありがとうございました。
参考に実装してみます。