It looks like you’re trying to set a variable in a Visual Studio Online (VSO) task using Python. Visual Studio Online (now known as Azure DevOps) allows you to define tasks within your build and release pipelines and manipulate variables within those tasks.

If you want to set a variable using Python in a VSO task, you typically do this by printing the variable assignment to the console output in your script. Here’s a basic example of how you might achieve this using Python:

In the above example, replace "MyVariableName" with the actual name of the variable you want to set and "NewVariableValue" with the value you want to assign to that variable.

Remember that this command, ##vso[task.setvariable], is a special syntax recognized by the VSO/DevOps environment, and it informs the system to set the variable accordingly.