docs: reflect current state of pyhton config

Author: karfau

README.md

@@ -198,7 +198,7 @@ A very common thing is to add [`:autoMergePatch`](https://docs.renovatebot.com/p
 ### python
 
 **There is currently only [limited / "alpha level" support](https://github.com/renovatebot/renovate/blob/main/lib/modules/manager/pip-compile/readme.md) for python using `pip-compile`.
-This configuration has not been used with python projects for a while, it most certainly needs changes.**
+This configuration has been used in some python projects for a while, you can test it in [bettermarks/renovate-config-test-pip-compile](https://github.com/bettermarks/renovate-config-test-pip-compile) by replacing the dependency files and change the config and see what updates renovate files.**
 
 ```json
 {
@@ -211,11 +211,17 @@ It includes the following presets:
 
 - the [default config](#default) from this repository
 
-
 and it configures the following:
 
-- constraints python to 3.6
-- Enables [pip-compile](https://docs.renovatebot.com/modules/manager/pip-compile/) manager (and disables [pip_requirements](https://docs.renovatebot.com/modules/manager/pip_requirements/) and [pip_setup](https://docs.renovatebot.com/modules/manager/pip_setup/) managers since they seem to be conflicting?)
+- Enables [pip-compile](https://docs.renovatebot.com/modules/manager/pip-compile/) manager (and disables [pip_requirements](https://docs.renovatebot.com/modules/manager/pip_requirements/) and [pip_setup](https://docs.renovatebot.com/modules/manager/pip_setup/) managers since we don't use those)
+
+If you found a config that works for you, please consider to update this one after testing it in [bettermarks/renovate-config-test-pip-compile](https://github.com/bettermarks/renovate-config-test-pip-compile) .
 
 **you can override all of this per repo!**
-if you found a config that works for you, please consider to update this one.
+
+it is very likely that you want to add the following using the correct values:
+```
+  "constraints": {
+    "python": "==3.9" 
+  },
+```