为什么我的Flask应用程序在Heroku上被检测为node.js [英] Why is my Flask app being detected as node.js on Heroku

问题描述

我最近对heroku上托管的Flask应用程序的结构做了一些更改，现在，heroku已经决定将它作为一个Python应用程序的Node.js应用程序intead来检测。我的应用程序使用python（Flask）作为后端api，而javascript作为前端。

我所做的更改包括将npm和bower集成到我的应用程序中，以简化应用程序的JavaScript开发。

解决方案

当我添加 package.json 当我开始使用npm时，我的根目录。看起来，构建检测脚本首先运行nodejs检测（ here ）导致这个代码： if [-f $ 1 / package.json];那么
会回显Node.js&&退出0 执行，Heroku认为它是一个nodejs应用程序，并在python检测有机会运行之前退出。

为了解决这个问题，我不得不手动告诉Heroku，我想用这个命令来构建一个python。
$ b $ p code> heroku config：设置BUILDPACK_URL = https：//github.com/heroku/heroku-buildpack-python 。

I recently made some changes to the structure of my Flask app hosted on heroku and now heroku has decided to detect it as a Node.js app intead of a Python app. My application uses both python (Flask) for the backend api and javascript for the front end.

The changes I made included integrating npm and bower into my application to streamline the javascript development of the app.

解决方案

The problem was introduced when I added a package.json to my root directory when I started using npm. It seems that the build detection script runs the nodejs detection first (here) which leads to this code: if [ -f $1/package.json ]; then echo "Node.js" && exit 0 executing and Heroku thinks it's a nodejs app and exits before the python detection has a chance to run.

To solve this I had to manually tell Heroku that I wanted a python build using this command

heroku config:set BUILDPACK_URL=https://github.com/heroku/heroku-buildpack-python.

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