M1 Macでscrapy shellでfetchしたらMemory Error

タイトルの通り、Scrapyを使ってみようとしたら、こんなエラーが出た

In [1]: fetch('https://qiita.com/')
2024-05-01 16:50:02 [scrapy.core.engine] INFO: Spider opened
---------------------------------------------------------------------------
MemoryError                               Traceback (most recent call last)
Cell In[1], line 1
----> 1 fetch('https://qiita.com/')

File /opt/anaconda3/envs/scrapy_env/lib/python3.8/site-packages/scrapy/shell.py:110, in Shell.fetch(self, request_or_url, spider, redirect, **kwargs)
    108 response = None
    109 try:
--> 110     response, spider = threads.blockingCallFromThread(
    111         reactor, self._schedule, request, spider)
    112 except IgnoreRequest:
    113     pass

File /opt/anaconda3/envs/scrapy_env/lib/python3.8/site-packages/twisted/internet/threads.py:120, in blockingCallFromThread(reactor, f, *a, **kw)
    118 result = queue.get()
    119 if isinstance(result, failure.Failure):
--> 120     result.raiseException()
    121 return result

File /opt/anaconda3/envs/scrapy_env/lib/python3.8/site-packages/twisted/python/failure.py:504, in Failure.raiseException(self)
    499 def raiseException(self) -> NoReturn:
    500     """
    501     raise the original exception, preserving traceback
    502     information if available.
    503     """
--> 504     raise self.value.with_traceback(self.tb)

MemoryError: Cannot allocate write+execute memory for ffi.callback(). You might be running on a system that prevents this. For more information, see https://cffi.readthedocs.io/en/latest/using.html#callbacks

M1 Macで起こるらしい、cffiのせいらしい

下記で解決

$ conda uninstall --force cffi
$ conda install cffi

参照URL
https://stackoverflow.com/questions/67556847/scrapy-on-m1-mac-memoryerror-cannot-allocate-writeexecute-memory-for-ffi-call