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There are several ways to provide information to a client function being executed by a Python thread:

1. Using global variables: You can declare global variables that can be accessed by both the thread and the client function. The thread can update the value of the global variable and the client function can read it.

2. Using queues: You can create a queue object that can be accessed by both the thread and the client function. The thread can push information into the queue and the client function can pop information from the queue.

3. Using callback functions: You can pass a function as an argument to the thread when it is started. The thread can call this function and pass information as arguments. The client function can define this function and read the information.

4. Using event objects: You can create an event object that can be accessed by both the thread and the client function. The thread can set the event object when it has information to provide and the client function can wait for the event object to be set before reading the information.

Note that the choice of method depends on the specific requirements of the application.