Building wheels for collected packages: argon2-cffi cwd: C:\Users\prasa\AppData\Local\Temp\pip-install-iele2h25\argon2-cffivisual-cpp-build-tools/
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我正在尝试使用以下命令安装scrapy但是我得到了这个错误:
Exception: Version mismatch: this is the 'cffi' package version 1.10.0, located in '/usr/local/lib/python2.7/dist-packages/cffi/api.pyc'.When we import the top-level '