pdm 安装的 streamlit 无法启动服务器

Question

我已经使用 pdm 在我的 Mac 上安装了 streamlit 并启动命令 streamlit hello 来查看演示。命令returns如下：

❯ pdm run streamlit hello
2022-03-21 11:43:45.812 WARNING streamlit.config:
Warning: the config option 'server.enableCORS=false' is not compatible with 'server.enableXsrfProtection=true'.
As a result, 'server.enableCORS' is being overridden to 'true'.

More information:
In order to protect against CSRF attacks, we send a cookie with each request.
To do so, we must specify allowable origins, which places a restriction on
cross-origin resource sharing.

If cross origin resource sharing is required, please disable server.enableXsrfProtection.

2022-03-21 11:43:45.816 DEBUG   streamlit.logger: Initialized tornado logs
2022-03-21 11:43:45.818 DEBUG   matplotlib.pyplot: Loaded backend agg version unknown.
2022-03-21 11:43:45.819 DEBUG   streamlit.bootstrap: Setting up signal handler
2022-03-21 11:43:45.819 DEBUG   asyncio: Using selector: KqueueSelector
2022-03-21 11:43:45.827 DEBUG   streamlit.server.server: Starting server...
2022-03-21 11:43:45.827 DEBUG   streamlit.server.server: Serving static content from the Node dev server
2022-03-21 11:43:45.830 DEBUG   streamlit.server.server: Server started on port 8501
2022-03-21 11:43:45.831 DEBUG   streamlit.server.server: Server state: State.INITIAL -> State.WAITING_FOR_FIRST_BROWSER
2022-03-21 11:43:46.029 DEBUG   git.cmd: Popen(['git', 'version'], cwd=<my/working/directory>, universal_newlines=False, shell=None, istream=None)
2022-03-21 11:43:46.041 DEBUG   git.cmd: Popen(['git', 'version'], cwd=<my/working/directory>, universal_newlines=False, shell=None, istream=None)
2022-03-21 11:43:46.054 DEBUG   git.cmd: Popen(['git', 'version'], cwd=<my/working/directory>, universal_newlines=False, shell=None, istream=None)
2022-03-21 11:43:46.066 DEBUG   git.cmd: Popen(['git', 'rev-parse', '--show-toplevel'], cwd=<my/working/directory>, universal_newlines=False, shell=None, istream=None)

  Welcome to Streamlit. Check out our demo in your browser.

  Local URL: http://localhost:3000
  Network URL: http://192.168.1.117:3000

  Ready to create your own Python apps super quickly?
  Head over to https://docs.streamlit.io

  May you create awesome apps!

但是，当我连接到本地URL时，连接被拒绝：

我尝试切换到 Brave Browser 和 Firefox，但我遇到了同样的错误。

根据其他 SO 问题，我尝试了以下方法：

❯ apachectl configtest
AH00557: httpd: apr_sockaddr_info_get() failed for Lucas-MacBook-Air.local
AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1. Set the 'ServerName' directive globally to suppress this message
Syntax OK

我也运行这个：

ps -ax | grep 'httpd'
  124 ??         0:00.85 /usr/sbin/httpd -D FOREGROUND
  517 ??         0:00.00 /usr/sbin/httpd -D FOREGROUND
 6627 ttys002    0:00.01 grep httpd

我尝试启动其他创建本地服务器的东西，例如Jupyter 笔记本，它们可以工作。

Answer 1

问题已知：streamlit does not support pdm at the time of writing, as mentioned by @cye18 on the parallel issue opened on pdm's github page.

问题是，虽然 streamlit 配置默认为服务器端口 8501，但服务器在端口 3000 上启动。您可以通过两种方式强制执行此行为。

第一个是手动changing streamlit's settings, which lies in ~/.streamlit/config.toml or locally in your project directory。

[server]
serverPort = 8501

或者，您可以在 streamlit 命令启动时添加以下标志：

pdm run streamlit run app.py --server.port 8501

无论哪种方式，streamlit 都会抱怨说 server.port does not work when global.developmentMode is true。再一次，这可以通过添加标志 --global.developmentMode false 来解决。最终命令将如下所示：pdm run streamlit run app.py --server.port 8501 --global.developmentMode false.

或者，本地设置如下所示：

[server]
port = 8501

[global]
developmentMode = false

pdm 安装的 streamlit 无法启动服务器

pdm-installed streamlit fails to launch a server

macos

apache

localhost

streamlit