Python change global proxy settings

Question

I am wondering if anyone knows how to change the global proxy settings of a windows 10 machine, through python. My goal is it to create a script which requests proxies and then sets them global for the entire machine. So if I open chrome or any Browser the traffic flows through the proxy.

But this technique only effects traffic, which is running through cmd

I tried for Example the netsh function in cmd:
```
netsh set proxy ..
```
I also tried starting the chrome browser with the proxy, but that also didn't work, referring to this article: https://winaero.com/blog/override-proxy-settings-google-chrome/

My code until now is only grabbing the proxy from a website with list of proxies.

Thanks

and what have you tried? StackOverflow is more of a "here's what I did... what did I do wrong" place than a "can you tell me how to code this" place. — Fubar
– Fubar, Commented Apr 24, 2020 at 19:21

Pedro Lobito · Accepted Answer · 2020-04-24 20:50:42Z

1

To programmatically set a system wide proxy on windows, you can change the registry, i.e.:

from winreg import *

proxy = "127.0.0.1:8080"
status = 1 # 0 disable 1 enable

keyVal = 'Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings'
key = OpenKey(HKEY_CURRENT_USER, keyVal, 0, KEY_ALL_ACCESS)
SetValueEx(key, "ProxyServer", 0, REG_SZ, proxy)
SetValueEx(key, "ProxyEnable", 0, REG_DWORD, status)
CloseKey(key)

Notes:

In my case, I had to close and re-open Firefox for it to acknowledge the new proxy settings.

edited Apr 24, 2020 at 20:50

answered Apr 24, 2020 at 20:40

Pedro Lobito

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2 Comments

Peter Over a year ago

Thank you soo much is chrome also affected from this setting ???

Pedro Lobito Over a year ago

All programs should be affected by this settings, as long as they're configured to use the system proxy. On Firefox, the setting is Use system proxy settings, but give it a try and test it.

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