Isn't TypeError built in?

[Mike Dewhirst]

Obviously something is wrong elsewhere but I'm not sure where to look. 
Ubuntu 20.04 with plenty of RAM.

     def __del__(self):
         try:
             for context_obj in self._context_refs:
                 try:
                     delattr(context_obj, self._attr_name)
                 except AttributeError:
                     pass

         except TypeError:        # THIS IS LINE 96 IN THE APACHE2 ERROR 
LOG BELOW

             # WeakSet.__iter__ can crash when interpreter is shutting 
down due
             # to _IterationGuard being None.
             pass

[Mon Dec 13 01:15:49.875993 2021] [mpm_event:notice] [pid 1033:tid 
140446449658944] AH00493: SIGUSR1 received.  Doing graceful restart
[Mon Dec 13 01:15:49.878443 2021] [so:warn] [pid 1033] AH01574: module 
dav_module is already loaded, skipping
[Mon Dec 13 01:15:49.885659 2021] [mpm_event:notice] [pid 1033:tid 
140446449658944] AH00489: Apache/2.4.41 (Ubuntu) SVN/1.13.0 
OpenSSL/1.1.1f mod_wsgi/4.6.8 Python/3.8 configured -- resuming normal 
operations
[Mon Dec 13 01:15:49.885664 2021] [core:notice] [pid 1033:tid 
140446449658944] AH00094: Command line: '/usr/sbin/apache2'
Exception ignored in: <function Local.__del__ at 0x7fbc380964c0>
Traceback (most recent call last):
   File "/usr/local/lib/python3.8/dist-packages/asgiref/local.py", line 
96, in __del__
NameError: name 'TypeError' is not defined
Exception ignored in: <function Local.__del__ at 0x7fbc380964c0>
Traceback (most recent call last):
   File "/usr/local/lib/python3.8/dist-packages/asgiref/local.py", line 
96, in __del__
NameError: name 'TypeError' is not defined

Any hints welcome ...

Thanks

Mike

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