打包Streamlight应用程序并在windows上运行可执行文件

Question

这是我关于Stackoverflow的第一个问题。我希望我的问题是明确的，否则让我知道，不要犹豫问我更多的细节

我正在尝试为个人项目打包Streamlight应用程序。我在linux下开发，但我必须在Windows上部署应用程序。我希望它是一个独立的可执行文件，一旦运行，它将打开浏览器选项卡以显示应用程序，并在关闭选项卡时退出。我想使用pynsist库来打包这个应用程序（已经用于另一个项目，并且运行良好）

我遵循了本报告中的建议。它在ubuntu上运行良好，在用pynsist打包应用程序后，显然在Windows上也运行良好。“显然”是因为可执行文件正在运行，但没有打开浏览器选项卡来显示应用程序

下面是我的一些代码片段

项目结构

|- installer.cfg
|- src
    |- main.py
    |- run_app.py

main.py

import streamlit as st

st.title("Test")
st.title("My first app deployed with Pynsist!")

运行应用程序py （在Thomas K的评论后编辑2）

import os
import subprocess
import sys

from src.config import EnvironmentalVariableNames as EnvVar, get_env

def main():
    executable = sys.executable
    result = subprocess.run(
        f"{executable} -m streamlit run {os.path.join(get_env(EnvVar.EMPORIO_VESTIARIO_DASHBOARD_WORKING_DIR), 'src', 'main.py')}",
        shell=True,
        capture_output=True,
        text=True,
    )


if __name__ == "__main__":
    main()

EMPORIO_VESTIARIO_DASHBOARD_WORKING_DIR是一个环境变量，可使应用程序在linux和windows上工作（在windows上，它设置为安装目录）

pynsistinstaller.cfg

编辑：包括通过pip list发现的streamlit的依赖项

编辑2:添加了MarkupSafe作为Jinja2的依赖项

[Application]
name=Emporio Vestiario Dashboard
version=0.1.0
# How to lunch the app - this calls the 'main' function from the 'myapp' package:
entry_point=src.run_app:main
icon=resources/caritas-logo.ico

[Python]
version=3.8.10
bitness=64

[Include]
# Packages from PyPI that your application requires, one per line
# These must have wheels on PyPI:
pypi_wheels = altair==4.1.0
    astor==0.8.1
    attrs==21.2.0
    backcall==0.2.0
    backports.zoneinfo==0.2.1
    base58==2.1.0
    bleach==4.1.0
    blinker==1.4
    cachetools==4.2.2
    certifi==2021.5.30
    cffi==1.14.6
    charset-normalizer==2.0.6
    click==7.1.2
    decorator==5.1.0
    defusedxml==0.7.1
    distlib==0.3.3
    entrypoints==0.3
    idna==3.2
    jsonschema==3.2.0
    mistune==0.8.4
    mypy-extensions==0.4.3
    numpy==1.21.1
    packaging==21.0
    pandas==1.3.3
    pandocfilters==1.5.0
    parso==0.8.2
    pillow==8.3.2
    platformdirs==2.4.0
    prompt-toolkit==3.0.20
    protobuf==3.18.0
    pyarrow==5.0.0
    pycparser==2.20
    pydeck==0.7.0
    pyparsing==2.4.7
    pyrsistent==0.18.0
    python-dateutil==2.8.2
    pytz==2021.1
    requests==2.26.0
    requests-download==0.1.2
    send2trash==1.8.0
    setuptools==57.0.0
    six==1.14.0
    smmap==4.0.0
    streamlit==0.89.0
    terminado==0.12.1
    testpath==0.5.0
    toml==0.10.2
    tomli==1.2.1
    toolz==0.11.1
    tornado==6.1
    traitlets==5.1.0
    typing-extensions==3.10.0.2
    tzlocal==3.0
    urllib3==1.26.7
    validators==0.18.2
    Jinja2==3.0.1
    MarkupSafe==2.0.1

查看Windows上的可执行文件输出，当前工作目录已正确打印，但未打印其他输出（Streamlight应用程序初始化消息或错误消息）。我试图打开浏览器并转到localhost:8501，但出现连接错误

关于如何执行代码并自动打开浏览器选项卡的提示？非常感谢您的帮助

编辑：正如对installer.cfg中最后一个软件包的评论所指出的，该应用程序（具有Jinja2依赖项）已正确安装在windows上，但启动后，该应用程序仍然找不到Jinja2依赖项。这是回溯：

Traceback (most recent call last):
  File "Emporio_Vestiario_Dashboard.launch.pyw", line 34, in <module>
    from src.run_app import main
  File "C:\Users\tantardini\develop\caritas\pkgs\src\run_app.py", line 6, in <module>
    import streamlit
  File "C:\Users\tantardini\develop\caritas\pkgs\streamlit\__init__.py", line 75, in <module>
    from streamlit.delta_generator import DeltaGenerator as _DeltaGenerator
  File "C:\Users\tantardini\develop\caritas\pkgs\streamlit\delta_generator.py", line 70, in <module>
    from streamlit.elements.arrow import ArrowMixin
  File "C:\Users\tantardini\develop\caritas\pkgs\streamlit\elements\arrow.py", line 20, in <module>
    from pandas.io.formats.style import Styler
  File "C:\Users\tantardini\develop\caritas\pkgs\pandas\io\formats\style.py", line 49, in <module>
    jinja2 = import_optional_dependency("jinja2", extra="DataFrame.style requires jinja2.")
  File "C:\Users\tantardini\develop\caritas\pkgs\pandas\compat\_optional.py", line 118, in import_optional_dependency
    raise ImportError(msg) from None
ImportError: Missing optional dependency 'Jinja2'. DataFrame.style requires jinja2. Use pip or conda to install Jinja2.

编辑2:多亏了Thomas K的有用提示，我想出了半个解决方案。应用程序运行并启动Streamlight

但是

以下是日志消息：

  Welcome to Streamlit!

  If you're one of our development partners or you're interested in getting
  personal technical support or Streamlit updates, please enter your email
  address below. Otherwise, you may leave the field blank.

  Email:
2021-10-11 20:56:53.202 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.
           
2021-10-11 20:56:53.202 DEBUG   streamlit.logger: Initialized tornado logs
2021-10-11 20:56:53.202 ERROR   streamlit.credentials: 

应用程序的执行似乎已停止，因为它正在等待某些凭据。我发现here可以添加.streamlit/credentials.toml，但我不确定windows上的确切位置。我还尝试在subprocess.run命令中显式添加--server.headless=false，但同样没有效果

为什么应用程序不像Linux那样自动启动？有没有一种方法可以在用户不进行额外配置的情况下启动应用程序

Answer 1

我终于让它开始工作了。在上一次尝试中，我犯了一个错误，将 server.headless=false设置为true。我发现streamlit run命令需要一个额外的标志： global.developmentMode=false。即使我在streamlit configurations中找不到对此配置的任何引用，这也会使部署工作正常

工作代码如下

项目结构

|- wheels/
|- installer.cfg
|- src
    |- main.py
    |- run_app.py

main.py

import streamlit as st

st.title("Test")
st.title("My first app deployed with Pynsist!")

运行应用程序py

import os
import subprocess
import sys
import webbrowser

from src.config import EnvironmentalVariableNames as EnvVar, get_env


def main():

    # Getting path to python executable (full path of deployed python on Windows)
    executable = sys.executable

    # Open browser tab. May temporarily display error until streamlit server is started.
    webbrowser.open("http://localhost:8501")

    # Run streamlit server
    path_to_main = os.path.join(
        get_env(EnvVar.EMPORIO_VESTIARIO_DASHBOARD_WORKING_DIR), "src", "app.py"
    )
    result = subprocess.run(
        f"{executable} -m streamlit run {path_to_main}  server.headless=true  global.developmentMode=false",
        shell=True,
        capture_output=True,
        text=True,
    )

    # These are printed only when server is stopped.
    # NOTE: you have to manually stop streamlit server killing process.
    print(result.stdout)
    print(result.stderr)


if __name__ == "__main__":
    main()

一些注意事项：

1. webbrowser.open是在浏览器中自动打开新选项卡以显示streamlit应用程序所必需的。subprocess.run行仅启动新的Streamlight服务器
2. 正如我在评论中指出的，一旦退出浏览器中的streamlit选项卡，streamlit服务器仍然存在并处于活动状态。您只需在地址栏中键入localhost:8501即可再次访问仪表板。如果多次单击Windows应用程序图标，则会启动多个Streamlight服务器。我试过在同一时间只有两个活跃的，他们没有表现出冲突的行为。例如，要停止它们，您必须通过任务管理器手动结束任务

安装程序.cfg

[Application]
name=Emporio Vestiario Dashboard
version=0.1.0
# How to lunch the app - this calls the 'main' function from the 'myapp' package:
entry_point=src.run_app:main
icon=resources/caritas-logo.ico

[Python]
version=3.8.10
bitness=64

[Include]
# Packages from PyPI that your application requires, one per line
# These must have wheels on PyPI:
pypi_wheels = altair==4.1.0
    astor==0.8.1
    attrs==21.2.0
    backcall==0.2.0
    backports.zoneinfo==0.2.1
    base58==2.1.0
    bleach==4.1.0
    blinker==1.4
    cachetools==4.2.2
    certifi==2021.5.30
    cffi==1.14.6
    charset-normalizer==2.0.6
    click==7.1.2
    decorator==5.1.0
    defusedxml==0.7.1
    distlib==0.3.3
    entrypoints==0.3
    idna==3.2
    jsonschema==3.2.0
    mistune==0.8.4
    mypy-extensions==0.4.3
    numpy==1.21.1
    packaging==21.0
    pandas==1.3.3
    pandocfilters==1.5.0
    parso==0.8.2
    pillow==8.3.2
    platformdirs==2.4.0
    prompt-toolkit==3.0.20
    protobuf==3.18.0
    pyarrow==5.0.0
    pycparser==2.20
    pydeck==0.7.0
    pyparsing==2.4.7
    pyrsistent==0.18.0
    python-dateutil==2.8.2
    pytz==2021.1
    requests==2.26.0
    requests-download==0.1.2
    send2trash==1.8.0
    setuptools==57.0.0
    six==1.14.0
    smmap==4.0.0
    streamlit==0.89.0
    terminado==0.12.1
    testpath==0.5.0
    toml==0.10.2
    tomli==1.2.1
    toolz==0.11.1
    tornado==6.1
    traitlets==5.1.0
    typing-extensions==3.10.0.2
    tzlocal==3.0
    urllib3==1.26.7
    validators==0.18.2
    Jinja2==3.0.1
    MarkupSafe==2.0.1

extra_wheel_sources = ./wheels

注意：blinker和pyarrow需要额外的车轮