Django 1.9：将变量从python脚本传递到bash脚本-OSError：[Errno 2]没有这样的文件或目录

Question

subprocess.call(["echo",instance.Username])  # => works .


subprocess.call(["username=",instance.Username])  # => error
subprocess.Call(["username","=",instance.Username])  # => error

subprocess.call(["username=",instance.Username],shell=True)
# => no Error but when i do echo $username there is nothing inside..

would you help me, I just want to put the value of instance.Username in a bash variable.

Thank you.

Answer 1

You'll want to pass it as an environment variable to subprocess.call() like so:

env = {
    'username': instance.Username,
}

subprocess.call(['./your_script.sh'], env=env)

This will make the environment variable $username available to your bash script.

Remember to enclose the bash command in a list, run the script with ./ , and start the script with the correct shebang, (all things I forgot to do while writing this).