How Can I Request UAC Elevation for My Python Scripts?

UAC Elevation in Python Scripts

In Windows Vista and later versions, User Account Control (UAC) restricts certain file system actions to prevent unauthorized modifications. This can hinder Python scripts from performing operations such as copying files.

Requesting UAC Elevation

As of 2017, a convenient way to request UAC elevation is the following:

import ctypes, sys

def is_admin():
    try:
        return ctypes.windll.shell32.IsUserAnAdmin()
    except:
        return False

if is_admin():
    # Code goes here
else:
    # Re-run with admin rights
    ctypes.windll.shell32.ShellExecuteW(None, "runas", sys.executable, " ".join(sys.argv), None, 1)

If using Python 2.x, replace the last line with:

ctypes.windll.shell32.ShellExecuteW(None, u"runas", unicode(sys.executable), unicode(" ".join(sys.argv)), None, 1)

This method offers several advantages:

• No external libraries: Uses only standard library modules likectypes and sys.
• Python compatibility: Works for both Python 2 and 3.
• Effortless: Avoids modifying file resources or creating manifests.
• Single execution: Code execution does not duplicate without manual modification.
• API return value access: Return codes can be obtained for error handling.
• Display method customization: Modify the sixth parameter to adjust the spawning process's display.

This method is particularly convenient because it provides a straightforward and portable approach to elevating UAC permissions within Python scripts.

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