Simplify test for iterable iter_fn

Author: ArchdukeTim

robotpy_ext/autonomous/selector.py

@@ -1,6 +1,5 @@
 
 from glob import glob
-from collections import Iterable
 import importlib
 import inspect
 import os
@@ -237,7 +236,7 @@ def run(self, control_loop_wait_time=0.020, iter_fn=None, on_exception=None):
             except:
                 on_exception()
 
-            if isinstance(iter_fn, Iterable):
+            if isinstance(iter_fn, (list, tuple)):
                 for fn in iter_fn:
                     fn()
             else: