2021-11-02 15:56:03 [twisted] CRITICAL: 
Traceback (most recent call last):
  File "/Users/tanya/Library/Python/2.7/lib/python/site-packages/twisted/internet/defer.py", line 1418, in _inlineCallbacks
    result = g.send(result)
  File "/Users/tanya/Library/Python/2.7/lib/python/site-packages/scrapy/crawler.py", line 104, in crawl
    six.reraise(*exc_info)
  File "/Users/tanya/Library/Python/2.7/lib/python/site-packages/scrapy/crawler.py", line 86, in crawl
    self.engine = self._create_engine()
  File "/Users/tanya/Library/Python/2.7/lib/python/site-packages/scrapy/crawler.py", line 111, in _create_engine
    return ExecutionEngine(self, lambda _: self.stop())
  File "/Users/tanya/Library/Python/2.7/lib/python/site-packages/scrapy/core/engine.py", line 67, in __init__
    self.scheduler_cls = load_object(self.settings['SCHEDULER'])
  File "/Users/tanya/Library/Python/2.7/lib/python/site-packages/scrapy/utils/misc.py", line 46, in load_object
    mod = import_module(module)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/Users/tanya/Library/Python/2.7/lib/python/site-packages/scrapy/core/scheduler.py", line 7, in <module>
    from queuelib import PriorityQueue
  File "/Users/tanya/Library/Python/2.7/lib/python/site-packages/queuelib/__init__.py", line 1, in <module>
    from queuelib.queue import FifoDiskQueue, LifoDiskQueue
  File "/Users/tanya/Library/Python/2.7/lib/python/site-packages/queuelib/queue.py", line 7, in <module>
    from contextlib import suppress
ImportError: cannot import name suppress

resolvent:

pip uninstall attrs
pip uninstall queuelib
pip install queuelib==1.5.0
pip install attrs