Python recursive limit and how to keep monitoring something

It needs loop. It should be:

def update():
    get_temp()#the function that get the computer temperature value, like cpu temperature.
    ...

def upd():
    while True:#needs a while true here and don't call upd() in this function.
        update()
        time.sleep(0.3)

upd()#this upd() is outside the function upd(),it used to start the function.

Thanks to everyone who helped me.

I am working on a python tkinter program that monitoring computer temperature, and I want it to update the temperature value after a fixed time. the following function is what I used to do that:

def update():
        get_temp()#the function that get the computer temperature value, like cpu temperature.
        ...
    def upd():
        update()
        time.sleep(0.3)
        upd()#recursive call function.

    upd()

You can run the update loop in another thread. Maybe try something like this:

import threading

def update():
    get_temp()
    time.sleep(0.3)

updateThread = threading.Thread(target=update)
updateThread.start()

The same holds true if multiple instances of the same function are running concurrently. For example, consider the following definition:

def function():
    x = 10
    function()

>>>

>>> function()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 3, in function
  File "<stdin>", line 3, in function
  File "<stdin>", line 3, in function
  [Previous line repeated 996 more times]
RecursionError: maximum recursion depth exceeded

>>>

>>> from sys import getrecursionlimit
>>> getrecursionlimit()
1000

>>>

>>> from sys import setrecursionlimit
>>> setrecursionlimit(2000)
>>> getrecursionlimit()
2000

>>>

>>> def countdown(n):
...     print(n)
...     if n == 0:
...         return             # Terminate recursion
...     else:
...         countdown(n - 1)   # Recursive call
...

>>> countdown(5)
5
4
3
2
1
0