Error while executing load_weights.py

[Sarjhana]

Traceback (most recent call last):
File "load_weights.py", line 4, in
from yolov3_tf2.models import YoloV3, YoloV3Tiny
File "/Users/sarjhana/Downloads/yolov3_deepsort-master/yolov3_tf2/models.py", line 4, in
import tensorflow as tf
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/tensorflow/init.py", line 98, in
from tensorflow_core import *
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/tensorflow_core/init.py", line 40, in
from tensorflow.python.tools import module_util as _module_util
File "", line 983, in _find_and_load
File "", line 959, in _find_and_load_unlocked
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/tensorflow/init.py", line 50, in getattr
module = self._load()
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/tensorflow/init.py", line 44, in _load
module = _importlib.import_module(self.name)
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/tensorflow_core/python/init.py", line 52, in
from tensorflow.core.framework.graph_pb2 import *
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/tensorflow_core/core/framework/graph_pb2.py", line 7, in
from google.protobuf import descriptor as _descriptor
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/google/protobuf/init.py", line 37, in
import('pkg_resources').declare_namespace(name)
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/pkg_resources/init.py", line 83, in
import('pkg_resources.extern.packaging.requirements')
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/pkg_resources/_vendor/packaging/requirements.py", line 9, in
from pkg_resources.extern.pyparsing import stringStart, stringEnd, originalTextFor, ParseException
File "", line 983, in _find_and_load
File "", line 967, in _find_and_load_unlocked
File "", line 668, in _load_unlocked
File "", line 638, in _load_backward_compatible
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/pkg_resources/extern/init.py", line 43, in load_module
import(extant)
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 4756, in
_escapedPunc = Word( _bslash, r"[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 1284, in setParseAction
self.parseAction = list(map(_trim_arity, list(fns)))
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 1066, in _trim_arity
this_line = extract_stack(limit=2)[-1]
File "/Users/sarjhana/dlenv/lib/python3.7/site-packages/pkg_resources/_vendor/pyparsing.py", line 1050, in extract_stack
frame_summary = traceback.extract_stack(limit=-offset+limit-1)[offset]
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/traceback.py", line 211, in extract_stack
stack = StackSummary.extract(walk_stack(f), limit=limit)
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/traceback.py", line 363, in extract
f.line
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/traceback.py", line 285, in line
self._line = linecache.getline(self.filename, self.lineno).strip()
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/linecache.py", line 16, in getline
lines = getlines(filename, module_globals)
File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7/lib/python3.7/linecache.py", line 48, in getlines
for mod in sys.modules.values():
RuntimeError: dictionary changed size during iteration