如何使用cx_Freeze将目录添加到系统路径环境变量？

Question

I have developed an application in Python and I am distributing the .exe of the app by freezing the code with cx_Freeze .

A package in my application ( cx_Oracle ) requires the user to add a directory to the PATH environment variable.

Is there a way to do so making use of bdist_msi command in cx_Freeze setup script without having the user to do it manually?

For example, if I wanted to add C:\\folder1 to the PATH , how should I modify the following code?

'bdist_msi': {
    'upgrade_code': upgrade_code,
    'add_to_path': True,
    'environment_variables': [
        ("E_MYAPP_VAR", "=-*MYAPP_VAR", "1", "TARGETDIR")
    ]
}

Answer 1

Try with

'bdist_msi': {
    'upgrade_code': upgrade_code,
    'add_to_path': True,
    'environment_variables': [
        ("E_MYAPP_VAR", "=-*Path", r"[~];C:\folder1", "TARGETDIR")
    ]
}

See the implementation of the add_to_path option in https://github.com/anthony-tuininga/cx_Freeze/blob/master/cx_Freeze/windist.py and the documentation of the MSI Environment Table .

But please BE CAREFUL: I've not tested this code and loosing the existing path information may prevent the computer from booting according to that documentation.