安装报错,3环境下安装scrapy的章程教程

by admin on 2019年1月31日

用64位windows10的CMD命令安装pip install scrapy出错:

近些年忙里偷闲想上学一下python的爬虫框架scrapy,在mac下安装的时候遭受了难点,逐一解决了难点,分享一下,话不多说了,来共同探访详细的牵线吧。

Windows8下安装Python的BeautifulSoup,windows8python

运转条件:Windows 8.1
Python:2.7.6

在设置的时候,我使用的pip来进展安装,命令如下:

复制代码 代码如下:

pip install beautifulsoup4

运转的时候,报错如下:

复制代码 代码如下:

Exception:
Traceback (most recent call last):
  File “J:\Program Files
(x86)\Python\Python27\lib\site-packages\pip\basecomm
.py”, line 122, in main
    status = self.run(options, args)
  File “J:\Program Files
(x86)\Python\Python27\lib\site-packages\pip\commands
stall.py”, line 278, in run
    requirement_set.prepare_files(finder,
force_root_egg_info=self.bundle, bu
e=self.bundle)
  File “J:\Program Files
(x86)\Python\Python27\lib\site-packages\pip\req.py”,
ne 1229, in prepare_files
    req_to_install.run_egg_info()
  File “J:\Program Files
(x86)\Python\Python27\lib\site-packages\pip\req.py”,
ne 292, in run_egg_info
    logger.notify(‘Running setup.py (path:%s) egg_info for package %s’
% (sel
etup_py, self.name))
  File “J:\Program Files
(x86)\Python\Python27\lib\site-packages\安装报错,3环境下安装scrapy的章程教程。pip\req.py”,
ne 265, in setup_py
    import setuptools
  File “build\bdist.win-amd64\egg\setuptools\__init__.py”, line
11, in <modul
    from setuptools.extension import Extension
  File “build\bdist.win-amd64\egg\setuptools\extension.py”, line 5,
in <modul
安装报错,3环境下安装scrapy的章程教程。  File “build\bdist.win-amd64\egg\setuptools\dist.py”, line 15, in
<module>
  File “build\bdist.win-amd64\egg\setuptools\compat.py”, line 19, in
<module>
  File “J:\Program Files
(x86)\Python\Python27\lib\SimpleHTTPServer.py”, line
, in <module>
    class
SimpleHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
  File “J:\Program Files
(x86)\Python\Python27\lib\SimpleHTTPServer.py”, line
8, in SimpleHTTPRequestHandler
    mimetypes.init() # try to read system mime.types
  File “J:\Program Files (x86)\Python\Python27\lib\mimetypes.py”,
line 358, i
nit
    db.read_windows_registry()
  File “J:\Program Files (x86)\Python\Python27\lib\mimetypes.py”,
line 258, i
ead_windows_registry
    for subkeyname in enum_types(hkcr):
  File “J:\Program Files (x86)\Python\Python27\lib\mimetypes.py”,
line 249, i
num_types
    ctype = ctype.encode(default_encoding) # omit in 3.x!
UnicodeDecodeError: ‘ascii’ codec can’t decode byte 0xb0 in position 1:
ordin
not in range(128)

Storing debug log for failure in
C:\Users\Administrator\pip\pip.log

不留余地办法:打开C:\Python27\Lib下的 mimetypes.py
文件,找到大约256行的

复制代码 代码如下:

default_encoding = sys.getdefaultencoding()

改成:

复制代码 代码如下:

if sys.getdefaultencoding() != ‘gbk’:
    reload(sys)
    sys.setdefaultencoding(‘gbk’)
default_home88一必发,encoding = sys.getdefaultencoding()

设置成功后,验证是或不是安装成功:

复制代码 代码如下:

C:\Users\Administrator>python
Python 2.7.6 (default, Nov 10 2013, 19:24:24) [MSC v.1500 64 bit
(AMD64)] on 32
Type “help”, “copyright”, “credits” or “license” for more information.
>>> from bs4 import BeautifulSoup
>>> exit()

假若“from bs4 import
BeautifulSoup”没有报错的话,则声明安装成功,否则,将报类似错误如下:

复制代码 代码如下:

Traceback (most recent call last):
  File “<stdin>”, line 1, in <module>
ImportError: No module named bs4

运行条件:Windows 8.1 Python:2.7.6
在安装的时候,我利用的pip来拓展安装,命令如下: 复制代码 代…

报错:

e:\python3.6.0\lib\site-packages\pip\compat\__init__.py”, line
73, in console_to_str return s.decode(sys.__stdout__.encoding)

UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0xce in position 72:
invalid continuation byte

  Running setup.py bdist_wheel for Twisted … error

手续如下:

解决:

拔取Git Bush命令行安装

  Failed building wheel for Twisted

  1. 从官网 下载最新版本Python
    3.6.3(本地快捷下载安装:)

总结:

慎用Windows呀

  Running setup.py clean for Twisted

home88一必发 1

Failed to build Twisted

# 在Mac上Python3环境下安装scrapy

Installing collected packages: pycparser, cffi, asn1crypto,
cryptography, pyOpenSSL, Twisted, pyasn1, pyasn1-modules,
service-identity, queuelib, scrapy

  1. 安装 Python3

  Running setup.py install for Twisted … error

home88一必发 2

Exception:

在终端输入python3面世上边的始末表示安装成功

Traceback (most recent call last):

➜ ~ python3
Python 3.6.3 (v3.6.3:2c5fed86e0, Oct 3 2017, 00:32:08) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 

  File
“e:\python\envs\py2scripy\lib\site-packages\pip\compat\__init__.py”,
line 73, in console_to_str

输入quit()退出编辑情势

    return s.decode(sys.__stdout__.encoding)

  1. 输入 pip install scrapy执行 scrapy 安装

    ➜ ~ pip install Scrapy
    Collecting Scrapy
    Using cached Scrapy-1.4.0-py2.py3-none-any.whl
    Collecting lxml (from Scrapy)
    Using cached lxml-4.1.0-cp27-cp27m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl
    Collecting PyDispatcher>=2.0.5 (from Scrapy)
    Using cached PyDispatcher-2.0.5.tar.gz
    Collecting Twisted>=13.1.0 (from Scrapy)
    Using cached Twisted-17.9.0.tar.bz2
    Requirement already satisfied: pyOpenSSL in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from Scrapy)
    Collecting queuelib (from Scrapy)
    Using cached queuelib-1.4.2-py2.py3-none-any.whl
    Collecting cssselect>=0.9 (from Scrapy)
    Using cached cssselect-1.0.1-py2.py3-none-any.whl
    Collecting parsel>=1.1 (from Scrapy)
    Using cached parsel-1.2.0-py2.py3-none-any.whl
    Collecting service-identity (from Scrapy)
    Using cached service_identity-17.0.0-py2.py3-none-any.whl
    Collecting six>=1.5.2 (from Scrapy)
    Using cached six-1.11.0-py2.py3-none-any.whl
    Collecting w3lib>=1.17.0 (from Scrapy)
    Using cached w3lib-1.18.0-py2.py3-none-any.whl
    Requirement already satisfied: zope.interface>=3.6.0 in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from Twisted>=13.1.0->Scrapy)
    Collecting constantly>=15.1 (from Twisted>=13.1.0->Scrapy)
    Using cached constantly-15.1.0-py2.py3-none-any.whl
    Collecting incremental>=16.10.1 (from Twisted>=13.1.0->Scrapy)
    Using cached incremental-17.5.0-py2.py3-none-any.whl
    Collecting Automat>=0.3.0 (from Twisted>=13.1.0->Scrapy)
    Using cached Automat-0.6.0-py2.py3-none-any.whl
    Collecting hyperlink>=17.1.1 (from Twisted>=13.1.0->Scrapy)
    Using cached hyperlink-17.3.1-py2.py3-none-any.whl
    Collecting pyasn1 (from service-identity->Scrapy)
    Using cached pyasn1-0.3.7-py2.py3-none-any.whl
    Collecting pyasn1-modules (from service-identity->Scrapy)
    Using cached pyasn1_modules-0.1.5-py2.py3-none-any.whl
    Collecting attrs (from service-identity->Scrapy)
    Using cached attrs-17.2.0-py2.py3-none-any.whl
    Requirement already satisfied: setuptools in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from zope.interface>=3.6.0->Twisted>=13.1.0->Scrapy)
    Installing collected packages: lxml, PyDispatcher, constantly, incremental, six, attrs, Automat, hyperlink, Twisted, queuelib, cssselect, w3lib, parsel, pyasn1, pyasn1-modules, service-identity, Scrapy
    Exception:
    Traceback (most recent call last):
    File “/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/basecommand.py”, line 215, in main
    status = self.run(options, args)
    File “/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/commands/install.py”, line 342, in run
    prefix=options.prefix_path,
    File “/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_set.py”, line 784, in install
    **kwargs
    File “/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_install.py”, line 851, in install
    self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
    File “/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/req/req_install.py”, line 1064, in move_wheel_files
    isolated=self.isolated,
    File “/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/wheel.py”, line 345, in move_wheel_files
    clobber(source, lib_dir, True)
    File “/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/wheel.py”, line 316, in clobber
    ensure_dir(destdir)
    File “/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/utils/init.py”, line 83, in ensure_dir
    os.makedirs(path)
    File “/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py”, line 157, in makedirs
    mkdir(name, mode)
    OSError: [Errno 13] Permission denied: ‘/Library/Python/2.7/site-packages/lxml’

UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0xb6 in position 30:
invalid start byte

出现
OSError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/lxml'错误

 

  1. 尝试再一次安装lxml,执行 sudo pip install lxml

    ➜ ~ sudo pip install lxml
    The directory ‘/Users/wangruofeng/Library/Caches/pip/http’ or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo’s -H flag.
    The directory ‘/Users/wangruofeng/Library/Caches/pip’ or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo’s -H flag.
    Collecting lxml
    Downloading lxml-4.1.0-cp27-cp27m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (8.7MB)
    100% |████████████████████████████████| 8.7MB 97kB/s
    Installing collected packages: lxml
    Successfully installed lxml-4.1.0
    ➜ ~ sudo pip install scrapy
    The directory ‘/Users/wangruofeng/Library/Caches/pip/http’ or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo’s -H flag.
    The directory ‘/Users/wangruofeng/Library/Caches/pip’ or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo’s -H flag.
    Collecting scrapy
    Downloading Scrapy-1.4.0-py2.py3-none-any.whl (248kB)
    100% |████████████████████████████████| 256kB 1.5MB/s
    Requirement already satisfied: lxml in /Library/Python/2.7/site-packages (from scrapy)
    Collecting PyDispatcher>=2.0.5 (from scrapy)
    Downloading PyDispatcher-2.0.5.tar.gz
    Collecting Twisted>=13.1.0 (from scrapy)
    Downloading Twisted-17.9.0.tar.bz2 (3.0MB)
    100% |████████████████████████████████| 3.0MB 371kB/s
    Requirement already satisfied: pyOpenSSL in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from scrapy)
    Collecting queuelib (from scrapy)
    Downloading queuelib-1.4.2-py2.py3-none-any.whl
    Collecting cssselect>=0.9 (from scrapy)
    Downloading cssselect-1.0.1-py2.py3-none-any.whl
    Collecting parsel>=1.1 (from scrapy)
    Downloading parsel-1.2.0-py2.py3-none-any.whl
    Collecting service-identity (from scrapy)
    Downloading service_identity-17.0.0-py2.py3-none-any.whl
    Collecting six>=1.5.2 (from scrapy)
    Downloading six-1.11.0-py2.py3-none-any.whl
    Collecting w3lib>=1.17.0 (from scrapy)
    Downloading w3lib-1.18.0-py2.py3-none-any.whl
    Requirement already satisfied: zope.interface>=3.6.0 in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from Twisted>=13.1.0->scrapy)
    Collecting constantly>=15.1 (from Twisted>=13.1.0->scrapy)
    Downloading constantly-15.1.0-py2.py3-none-any.whl
    Collecting incremental>=16.10.1 (from Twisted>=13.1.0->scrapy)
    Downloading incremental-17.5.0-py2.py3-none-any.whl
    Collecting Automat>=0.3.0 (from Twisted>=13.1.0->scrapy)
    Downloading Automat-0.6.0-py2.py3-none-any.whl
    Collecting hyperlink>=17.1.1 (from Twisted>=13.1.0->scrapy)
    Downloading hyperlink-17.3.1-py2.py3-none-any.whl (73kB)
    100% |████████████████████████████████| 81kB 1.4MB/s
    Collecting pyasn1 (from service-identity->scrapy)
    Downloading pyasn1-0.3.7-py2.py3-none-any.whl (63kB)
    100% |████████████████████████████████| 71kB 2.8MB/s
    Collecting pyasn1-modules (from service-identity->scrapy)
    Downloading pyasn1_modules-0.1.5-py2.py3-none-any.whl (60kB)
    100% |████████████████████████████████| 61kB 2.5MB/s
    Collecting attrs (from service-identity->scrapy)
    Downloading attrs-17.2.0-py2.py3-none-any.whl
    Requirement already satisfied: setuptools in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from zope.interface>=3.6.0->Twisted>=13.1.0->scrapy)
    Installing collected packages: PyDispatcher, constantly, incremental, six, attrs, Automat, hyperlink, Twisted, queuelib, cssselect, w3lib, parsel, pyasn1, pyasn1-modules, service-identity, scrapy
    Running setup.py install for PyDispatcher … done
    Found existing installation: six 1.4.1
    DEPRECATION: Uninstalling a distutils installed project (six) has been deprecated and will be removed in a future version. This is due to the fact that uninstalling a distutils project will only partially uninstall the project.
    Uninstalling six-1.4.1:
    Successfully uninstalled six-1.4.1
    Running setup.py install for Twisted … done
    Successfully installed Automat-0.6.0 PyDispatcher-2.0.5 Twisted-17.9.0 attrs-17.2.0 constantly-15.1.0 cssselect-1.0.1 hyperlink-17.3.1 incremental-17.5.0 parsel-1.2.0 pyasn1-0.3.7 pyasn1-modules-0.1.5 queuelib-1.4.2 scrapy-1.4.0 service-identity-17.0.0 six-1.11.0 w3lib-1.18.0

During handling of the above exception, another exception occurred:

中标安装lxml-4.1.0

 

  1. 再次尝试安装scrapy,执行 sudo pip install scrapy

    ➜ ~ sudo pip install scrapy
    The directory ‘/Users/wangruofeng/Library/Caches/pip/http’ or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo’s -H flag.
    The directory ‘/Users/wangruofeng/Library/Caches/pip’ or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo’s -H flag.
    Collecting scrapy
    Downloading Scrapy-1.4.0-py2.py3-none-any.whl (248kB)
    100% |████████████████████████████████| 256kB 1.5MB/s
    Requirement already satisfied: lxml in /Library/Python/2.7/site-packages (from scrapy)
    Collecting PyDispatcher>=2.0.5 (from scrapy)
    Downloading PyDispatcher-2.0.5.tar.gz
    Collecting Twisted>=13.1.0 (from scrapy)
    Downloading Twisted-17.9.0.tar.bz2 (3.0MB)
    100% |████████████████████████████████| 3.0MB 371kB/s
    Requirement already satisfied: pyOpenSSL in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from scrapy)
    Collecting queuelib (from scrapy)
    Downloading queuelib-1.4.2-py2.py3-none-any.whl
    Collecting cssselect>=0.9 (from scrapy)
    Downloading cssselect-1.0.1-py2.py3-none-any.whl
    Collecting parsel>=1.1 (from scrapy)
    Downloading parsel-1.2.0-py2.py3-none-any.whl
    Collecting service-identity (from scrapy)
    Downloading service_identity-17.0.0-py2.py3-none-any.whl
    Collecting six>=1.5.2 (from scrapy)
    Downloading six-1.11.0-py2.py3-none-any.whl
    Collecting w3lib>=1.17.0 (from scrapy)
    Downloading w3lib-1.18.0-py2.py3-none-any.whl
    Requirement already satisfied: zope.interface>=3.6.0 in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from Twisted>=13.1.0->scrapy)
    Collecting constantly>=15.1 (from Twisted>=13.1.0->scrapy)
    Downloading constantly-15.1.0-py2.py3-none-any.whl
    Collecting incremental>=16.10.1 (from Twisted>=13.1.0->scrapy)
    Downloading incremental-17.5.0-py2.py3-none-any.whl
    Collecting Automat>=0.3.0 (from Twisted>=13.1.0->scrapy)
    Downloading Automat-0.6.0-py2.py3-none-any.whl
    Collecting hyperlink>=17.1.1 (from Twisted>=13.1.0->scrapy)
    Downloading hyperlink-17.3.1-py2.py3-none-any.whl (73kB)
    100% |████████████████████████████████| 81kB 1.4MB/s
    Collecting pyasn1 (from service-identity->scrapy)
    Downloading pyasn1-0.3.7-py2.py3-none-any.whl (63kB)
    100% |████████████████████████████████| 71kB 2.8MB/s
    Collecting pyasn1-modules (from service-identity->scrapy)
    Downloading pyasn1_modules-0.1.5-py2.py3-none-any.whl (60kB)
    100% |████████████████████████████████| 61kB 2.5MB/s
    Collecting attrs (from service-identity->scrapy)
    Downloading attrs-17.2.0-py2.py3-none-any.whl
    Requirement already satisfied: setuptools in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from zope.interface>=3.6.0->Twisted>=13.1.0->scrapy)
    Installing collected packages: PyDispatcher, constantly, incremental, six, attrs, Automat, hyperlink, Twisted, queuelib, cssselect, w3lib, parsel, pyasn1, pyasn1-modules, service-identity, scrapy
    Running setup.py install for PyDispatcher … done
    Found existing installation: six 1.4.1
    DEPRECATION: Uninstalling a distutils installed project (six) has been deprecated and will be removed in a future version. This is due to the fact that uninstalling a distutils project will only partially uninstall the project.
    Uninstalling six-1.4.1:
    Successfully uninstalled six-1.4.1
    Running setup.py install for Twisted … done
    Successfully installed Automat-0.6.0 PyDispatcher-2.0.5 Twisted-17.9.0 attrs-17.2.0 constantly-15.1.0 cssselect-1.0.1 hyperlink-17.3.1 incremental-17.5.0 parsel-1.2.0 pyasn1-0.3.7 pyasn1-modules-0.1.5 queuelib-1.4.2 scrapy-1.4.0 service-identity-17.0.0 six-1.11.0 w3lib-1.18.0

  2. 推行 scrapy 出现上面错误

    ➜ ~ scrapy
    Traceback (most recent call last):
    File “/usr/local/bin/scrapy”, line 7, in
    from scrapy.cmdline import execute
    File “/Library/Python/2.7/site-packages/scrapy/cmdline.py”, line 9, in
    from scrapy.crawler import CrawlerProcess
    File “/Library/Python/2.7/site-packages/scrapy/crawler.py”, line 7, in
    from twisted.internet import reactor, defer
    File “/Library/Python/2.7/site-packages/twisted/internet/reactor.py”, line 38, in
    from twisted.internet import default
    File “/Library/Python/2.7/site-packages/twisted/internet/default.py”, line 56, in
    install = _getInstallFunction(platform)
    File “/Library/Python/2.7/site-packages/twisted/internet/default.py”, line 50, in _getInstallFunction
    from twisted.internet.selectreactor import install
    File “/Library/Python/2.7/site-packages/twisted/internet/selectreactor.py”, line 18, in
    from twisted.internet import posixbase
    File “/Library/Python/2.7/site-packages/twisted/internet/posixbase.py”, line 18, in
    from twisted.internet import error, udp, tcp
    File “/Library/Python/2.7/site-packages/twisted/internet/tcp.py”, line 28, in
    from twisted.internet._newtls import (
    File “/Library/Python/2.7/site-packages/twisted/internet/_newtls.py”, line 21, in
    from twisted.protocols.tls import TLSMemoryBIOFactory, TLSMemoryBIOProtocol
    File “/Library/Python/2.7/site-packages/twisted/protocols/tls.py”, line 63, in
    from twisted.internet._sslverify import _setAcceptableProtocols
    File “/Library/Python/2.7/site-packages/twisted/internet/_sslverify.py”, line 38, in
    TLSVersion.TLSv1_1: SSL.OP_NO_TLSv1_1,
    AttributeError: ‘module’ object has no attribute ‘OP_NO_TLSv1_1’

Traceback (most recent call last):

亟待更新 OpenSSL 库,执行 sudo pip install --upgrade pyopenssl

  File
“e:\python\envs\py2scripy\lib\site-packages\pip\basecommand.py”,
line 215, in main

➜ ~ sudo pip install --upgrade pyopenssl
Password:
The directory '/Users/wangruofeng/Library/Caches/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/Users/wangruofeng/Library/Caches/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting pyopenssl
 Downloading pyOpenSSL-17.3.0-py2.py3-none-any.whl (51kB)
 100% |████████████████████████████████| 51kB 132kB/s 
Requirement already up-to-date: six>=1.5.2 in /Library/Python/2.7/site-packages (from pyopenssl)
Collecting cryptography>=1.9 (from pyopenssl)
 Downloading cryptography-2.1.1-cp27-cp27m-macosx_10_6_intel.whl (1.5MB)
 100% |████████████████████████████████| 1.5MB 938kB/s 
Collecting cffi>=1.7; platform_python_implementation != "PyPy" (from cryptography>=1.9->pyopenssl)
 Downloading cffi-1.11.2-cp27-cp27m-macosx_10_6_intel.whl (238kB)
 100% |████████████████████████████████| 245kB 2.2MB/s 
Collecting enum34; python_version < "3" (from cryptography>=1.9->pyopenssl)
 Downloading enum34-1.1.6-py2-none-any.whl
Collecting idna>=2.1 (from cryptography>=1.9->pyopenssl)
 Downloading idna-2.6-py2.py3-none-any.whl (56kB)
 100% |████████████████████████████████| 61kB 3.1MB/s 
Collecting asn1crypto>=0.21.0 (from cryptography>=1.9->pyopenssl)
 Downloading asn1crypto-0.23.0-py2.py3-none-any.whl (99kB)
 100% |████████████████████████████████| 102kB 2.7MB/s 
Collecting ipaddress; python_version < "3" (from cryptography>=1.9->pyopenssl)
 Downloading ipaddress-1.0.18-py2-none-any.whl
Collecting pycparser (from cffi>=1.7; platform_python_implementation != "PyPy"->cryptography>=1.9->pyopenssl)
 Downloading pycparser-2.18.tar.gz (245kB)
 100% |████████████████████████████████| 256kB 3.6MB/s 
Installing collected packages: pycparser, cffi, enum34, idna, asn1crypto, ipaddress, cryptography, pyopenssl
 Running setup.py install for pycparser ... done
 Found existing installation: pyOpenSSL 0.13.1
 DEPRECATION: Uninstalling a distutils installed project (pyopenssl) has been deprecated and will be removed in a future version. This is due to the fact that uninstalling a distutils project will only partially uninstall the project.
 Uninstalling pyOpenSSL-0.13.1:
 Successfully uninstalled pyOpenSSL-0.13.1
Successfully installed asn1crypto-0.23.0 cffi-1.11.2 cryptography-2.1.1 enum34-1.1.6 idna-2.6 ipaddress-1.0.18 pycparser-2.18 pyopenssl-17.3.0

    status = self.run(options, args)

更新 OpenSSL 成功,再一次尝试推行 scrapy

  File
“e:\python\envs\py2scripy\lib\site-packages\pip\commands\install.py”,
line 342, in run

➜ ~ scrapy  
Scrapy 1.4.0 - no active project

Usage:
 scrapy <command> [options] [args]

Available commands:
 bench Run quick benchmark test
 fetch Fetch a URL using the Scrapy downloader
 genspider Generate new spider using pre-defined templates
 runspider Run a self-contained spider (without creating a project)
 settings Get settings values
 shell Interactive scraping console
 startproject Create new project
 version Print Scrapy version
 view Open URL in browser, as seen by Scrapy

 [ more ] More commands available when run from project directory

Use "scrapy <command> -h" to see more info about a command

    prefix=options.prefix_path,

并发上边内容,注脚安装成功。现在可以通过 scrapy 创设一个爬虫项目了

  File
“e:\python\envs\py2scripy\lib\site-packages\pip\req\req_set.py”,
line 784, in install

  1. 进入到你项目标目录,执行 scrapy startproject firstscrapy始建
    firstscrapy 爬虫项目

    ➜ PycharmProjects scrapy startproject firstscrapy
    New Scrapy project ‘firstscrapy’, using template directory ‘/Library/Python/2.7/site-packages/scrapy/templates/project’, created in:
    /Users/wangruofeng/PycharmProjects/firstscrapy

    You can start your first spider with:
    cd firstscrapy
    scrapy genspider example example.com
    ➜ PycharmProjects

    **kwargs

home88一必发 3

  File
“e:\python\envs\py2scripy\lib\site-packages\pip\req\req_install.py”,
line 878, in install

并发上面内容申明项目创造成功,可是使用的是2.7版本的Python怎么切换来3.6本子呢?

    spinner=spinner,

  1. 使用 PyCharm IDE 打开刚才的品类,执行 command + ,
    打开偏好设置菜单,在Project里面采取 Projiect interpreter
    来切换你需求重视的Python库的本子,配置截至。

  File
“e:\python\envs\py2scripy\lib\site-packages\pip\utils\__init__.py”,
line 676, in call_subprocess

home88一必发 4

    line = console_to_str(proc.stdout.readline())

  File
“e:\python\envs\py2scripy\lib\site-packages\pip\compat\__init__.py”,
line 75, in console_to_str

    return s.decode(‘utf_8’)

UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0xb6 in position 30:
invalid start byte

杀鸡取卵办法:

 home88一必发 5

 

参考连接方式:

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