[英]how run a python script via Batch file
hi i have a question how can run a python script in Batch file嗨,我有一个问题,如何在批处理文件中运行 python 脚本
i have a setup file for my flask app and every time should set up some environment variable and run app.py我的 flask 应用程序有一个安装文件,每次都应该设置一些环境变量并运行 app.py
i create a setup for this but i don't know how run python app and it's not working我为此创建了一个设置,但我不知道如何运行 python 应用程序并且它无法正常工作
my setup.cmd file looks like this:我的 setup.cmd 文件如下所示:
set app_debug=True
set API_KEY=secret
set SECRET_KEY=development mode
set WTF_CSRF_SECRET_KEY=development mode
set email_password=development mode
set RECAPTCHA_PUBLIC_KEY=secret
set RECAPTCHA_PRIVATE_KEY=secret
./venv/Scripts/activate.bat
python app.py
and it's goes to./venv/Scripts/activate.bat and then stop and don't work它会转到./venv/Scripts/activate.bat 然后停止并且不起作用
I think you have to “call” an external batch file if you want execution to return your current batch file.我认为如果要执行以返回当前批处理文件,则必须“调用”外部批处理文件。 So write
所以写
call./venv/Scripts/activate.bat调用./venv/Scripts/activate.bat
in your batch file.在你的批处理文件中。
Consider having a .env
file to store your environment variables.考虑使用
.env
文件来存储环境变量。
From your app.py
file you can load those env vars.从您的
app.py
文件中,您可以加载这些环境变量。
Reference: https://towardsdatascience.com/environment-variables-python-aecb9bf01b85参考: https://towardsdatascience.com/environment-variables-python-aecb9bf01b85
Example:例子:
import os
env_var = os.environ.get('ENV')
if not env_var:
print('ENV environment variable does not exist')
I face the same issue with my flask app virtual enviroment setup.bat script, I resolve this issue using below script.我的 flask 应用程序虚拟环境 setup.bat 脚本面临同样的问题,我使用以下脚本解决了这个问题。
setup.bat安装程序.bat
python -m venv venv
call venv\Scripts\activate.bat
pip install -r requirements.txt
call venv\Scripts\deactivate.bat
where, You can see I have used keyword call
which will call the activate.bat file and keep my virtual environment activated while I am doing my pip install
.在那里,您可以看到我使用了关键字
call
,它将调用 activate.bat 文件并在我执行pip install
时保持我的虚拟环境处于激活状态。 Once it is done I have deactivated the virtual environment using the same call
command in the batch file.完成后,我在批处理文件中使用相同的
call
命令停用了虚拟环境。
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