【问题标题】:Why did push of a Flask app to Heroku failed?为什么将 Flask 应用推送到 Heroku 失败?
【发布时间】:2021-03-02 23:35:33
【问题描述】:

我只是想将我的 Flask 应用程序推送到 Heroku,但遇到以下错误:

remote:            ERROR: Command errored out with exit status 1:
remote:             command: /app/.heroku/python/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-qq0uk569/xlwings/setup.py'"'"'; __file__='"'"'/tmp/pip-install-qq0uk569/xlwings/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-dxixzzkg
remote:                 cwd: /tmp/pip-install-qq0uk569/xlwings/
remote:            Complete output (5 lines):
remote:            Traceback (most recent call last):
remote:              File "<string>", line 1, in <module>
remote:              File "/tmp/pip-install-qq0uk569/xlwings/setup.py", line 32, in <module>
remote:                raise OSError("xlwings requires an installation of Excel and therefore only works on Windows and macOS. To enable the installation on Linux nevertheless, do: export INSTALL_ON_LINUX=1; pip install xlwings")
remote:            OSError: xlwings requires an installation of Excel and therefore only works on Windows and macOS. To enable the installation on Linux nevertheless, do: export INSTALL_ON_LINUX=1; pip install xlwings
remote:            ----------------------------------------
remote:        ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
remote:  !     Push rejected, failed to compile Python app.
remote: 
remote:  !     Push failed
remote: Verifying deploy...
remote: 
remote: !       Push rejected to browebgen.
remote: 
To https://git.heroku.com/browebgen.git
 ! [remote rejected] main -> main (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/browebgen.git'

我不确定我需要做什么才能摆脱这个错误。

【问题讨论】:

  • 错误似乎很明显。 xlwings requires an installation of Excel and therefore only works on Windows and macOS. To enable the installation on Linux nevertheless, do: export INSTALL_ON_LINUX=1; pip install xlwings

标签: python heroku xlwings


【解决方案1】:

错误信息说明了一切:

xlwings 需要安装 Excel,因此仅适用于 Windows 和 macOS。尽管如此,要在 Linux 上启用安装,请执行以下操作: export INSTALL_ON_LINUX=1;点安装 xlwings

您可能在您的应用程序中使用了一个名为 xlwings 的包,该包专为在 Windows 和 Mac 上使用而构建,但 Heroku 上的服务器上安装了 linux,因此您首先必须设置一个环境变量 INSTALL_ON_LINUX1 然后尝试再次部署应用程序。

您可以从 Heroku CLI 执行以下操作:

heroku config:set INSTALL_ON_LINUX=1 

【讨论】:

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