我是一個python新手，無法在我的Mac OS 10.10.15上安裝scrapy。我安裝了brew並能夠設置virtualenv

我是一個python新手，無法在我的mac os 10.10.15上安裝scrapy。我安裝了brew並能夠設置virtualenv。我是一個python新手，無法在我的Mac OS 10.10.15上安裝scrapy。我安裝了brew並能夠設置virtualenv

(scrapdata) 
---------- 
$ pip3 install scrapy 
Collecting scrapy 
    Using cached Scrapy-1.4.0-py2.py3-none-any.whl 
Collecting pyOpenSSL (from scrapy) 
    Using cached pyOpenSSL-17.2.0-py2.py3-none-any.whl 
Collecting Twisted>=13.1.0 (from scrapy) 
    Using cached Twisted-17.5.0.tar.bz2 
    Complete output from command python setup.py egg_info: 
    Download error on https://pypi.python.org/simple/incremental/: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:748) -- Some packages may not be found! 
    Couldn't find index page for 'incremental' (maybe misspelled?) 
    Download error on https://pypi.python.org/simple/: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:748) -- Some packages may not be found! 
    No local packages or working download links found for incremental>=16.10.1 
    Traceback (most recent call last): 
     File "<string>", line 1, in <module> 
     File "/private/var/folders/qt/0m1c18vs4wj_xwmw40m92v7w0000gn/T/pip-build-x9273g0d/Twisted/setup.py", line 21, in <module> 
     setuptools.setup(**_setup["getSetupArgs"]()) 
     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/core.py", line 108, in setup 
     _setup_distribution = dist = klass(attrs) 
     File "/User/UserName/scrapdata/lib/python3.6/site-packages/setuptools/dist.py", line 325, in __init__ 
     self.fetch_build_eggs(attrs['setup_requires']) 
     File "/Users/UserName/scrapdata/lib/python3.6/site-packages/setuptools/dist.py", line 446, in fetch_build_eggs 
     replace_conflicting=True, 
     File "/Users/UserName/scrapdata/lib/python3.6/site-packages/pkg_resources/__init__.py", line 855, in resolve 
     dist = best[req.key] = env.best_match(req, ws, installer) 
     File "/Users/UserName/scrapdata/lib/python3.6/site-packages/pkg_resources/__init__.py", line 1127, in best_match 
     return self.obtain(req, installer) 
     File "/Users/UserName/scrapdata/lib/python3.6/site-packages/pkg_resources/__init__.py", line 1139, in obtain 
     return installer(requirement) 
     File "/Users/UserName/scrapdata/lib/python3.6/site-packages/setuptools/dist.py", line 518, in fetch_build_egg 
     return cmd.easy_install(req) 
     File "/Users/UserName/scrapdata/lib/python3.6/site-packages/setuptools/command/easy_install.py", line 666, in easy_install 
     raise DistutilsError(msg) 
    distutils.errors.DistutilsError: Could not find suitable distribution for Requirement.parse('incremental>=16.10.1') 

    ---------------------------------------- 
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/qt/0m1c18vs4wj_xwmw40m92v7w0000gn/T/pip-build-x9273g0d/Twisted/

我粘貼了輸出。也嘗試安裝setuptools，展開和easy_setup，但沒有任何工作。請幫忙。謝謝！

來源

2017-08-14 sum98

您是否嘗試過以下方法？

刪除並重新創建你的virtualenv？
使用在pip
的--no-cache-dir選項如果不工作，吹走你的緩存位於~/Library/Caches/pip，然後再試一次？

我只是用pyenv（強烈推薦）測試，它的工作沒有任何問題，我在MacOS塞拉利昂也是如此。祝你好運！編輯＃1：當我想到這個，你可能有一些古怪的Python/MacOS的東西給予整個SSL字符串在你的錯誤。看看這個SO帖子，因爲它與你正在經歷的非常相似==>"SSL certificate verify failed" using pip to install packages

來源

2017-08-14 03:55:23 Carlos

我是一個python新手，無法在我的Mac OS 10.10.15上安裝scrapy。我安裝了brew並能夠設置virtualenv

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