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pip install scrapy报错

pip install scrapy报错

作者: 进击云原生 | 来源:发表于2018-08-04 09:28 被阅读752次

    报错:
    Traceback (most recent call last):
    File "D:/SoftwareAndProgram/program/Python/l0x8df/main.py", line 4, in <module>
    from scrapy.cmdline import execute
    ImportError: No module named scrapy.cmdline

    image.png

    需要pip安装scrapy:
    pip install scrapy

    报错:
    RuntimeError: cryptography requires setuptools 18.5 or newer, please upgrade to a newer version of setuptools

    先升级:

    pip3 install -U setuptools

    然后继续
    pip install scrapy
    报错:


    image.png

    是因为pip版本过低:
    pip --version 查看版本

    升级pip:

    pip升级安装

    有时候安装软件出错,可能是pip的版本过低导致,这个时候就要升级pip了。

    1、查看pip的版本号

    pip --version

    2、升级方法

    On Linux or OS X:

    pip install -U pip

    On Windows:

    python -m pip install -U pip

    升级完成后继续安装:
    pip install scrapy

    报错:


    image.png
    ERROR: MICROSOFT VISUAL C++ 9.0 IS REQUIRED (UNABLE TO FIND VCVARSALL.BAT). GET IT FROM HTTP://AKA.MS/VCPYTHON27

    在Windows下用pip安装Scrapy报如下错误,看错误提示就知道去http://aka.ms/vcpython27找解决方法了

    error: Microsoft Visual C++ 9.0 is required (Unable to find vcvarsall.bat). Get it from http://aka.ms/vcpython27

    打开http://aka.ms/vcpython27会跳转到
    http://www.microsoft.com/en-us/download/confirmation.aspx?id=44266

    将安装包下载

    Microsoft Visual C++ Compiler for Python 2.7

    回来安装即可解决问题

    升级完成后继续安装成功:
    pip install scrapy

    image.png

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