Create readme.python.md (#20864)

* Create readme.python.md

* Update readme.md

Author: msyyc

specification/developerhub/resource-manager/readme.md

@@ -50,8 +50,13 @@ This is not used by Autorest itself.
 ```yaml $(swagger-to-sdk)
 swagger-to-sdk:
   - repo: azure-sdk-for-go
+  - repo: azure-sdk-for-python-track2
 ```
 
+## Python
+
+See configuration in [readme.python.md](./readme.python.md)
+
 ## Go
 
 See configuration in [readme.go.md](./readme.go.md)

specification/developerhub/resource-manager/readme.python.md

@@ -0,0 +1,18 @@
+## Python
+
+These settings apply only when `--python` is specified on the command line.
+Please also specify `--python-sdks-folder=<path to the root directory of your azure-sdk-for-python clone>`.
+
+``` yaml $(python)
+azure-arm: true
+license-header: MICROSOFT_MIT_NO_VERSION
+package-name: azure-mgmt-devhub
+namespace: azure.mgmt.devhub
+package-version: 1.0.0b1
+clear-output-folder: true
+```
+
+``` yaml $(python)
+no-namespace-folders: true
+output-folder: $(python-sdks-folder)/devhub/azure-mgmt-devhub/azure/mgmt/devhub
+```