16、安装scrapy
<ol>
<li>wheel
pip install wheel</li>
<li>lxml
<a href="http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml">http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml</a></li>
<li>PyOpenssl
<a href="https://pypi.python.org/pypi/pyOpenSSL#downloads">https://pypi.python.org/pypi/pyOpenSSL#downloads</a></li>
<li>Twisted
<a href="http://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted">http://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted</a></li>
<li>Pywin32
<a href="https://sourceforge.net/projects/pywin32/files/pywin32/Build%20220/">https://sourceforge.net/projects/pywin32/files/pywin32/Build%20220/</a></li>
<li>Scrapy
pip install scrapy</li>
</ol>
<h3>安装pywin32</h3>
<p>下载网址： <a href="https://sourceforge.net/projects/pywin32/files/pywin32/">https://sourceforge.net/projects/pywin32/files/pywin32/</a></p>
<p>根据自己python版本下载64位或32位（(注意：pywin32版本跟随Python版本，即如果win是64位，但python是32位，pywin32要装32位的，与win无关））</p>
<p>双击安装（可能会遇到下列错误是注册表问题）</p>
<p>安装第三方库出现Python version 3.6 required, which was not found in the registry错误解决
建立一个文件 register.py 内容如下. 然后执行该脚本. </p>
<pre><code>import sys
from winreg import *
# tweak as necessary
version = sys.version[:3]
installpath = sys.prefix
regpath = "SOFTWARE\\Python\\Pythoncore\\%s\\" % (version)
installkey = "InstallPath"
pythonkey = "PythonPath"
pythonpath = "%s;%s\\Lib\\;%s\\DLLs\\" % (
installpath, installpath, installpath
)
def RegisterPy():
try:
reg = OpenKey(HKEY_CURRENT_USER, regpath)
except EnvironmentError as e:
try:
reg = CreateKey(HKEY_CURRENT_USER, regpath)
SetValue(reg, installkey, REG_SZ, installpath)
SetValue(reg, pythonkey, REG_SZ, pythonpath)
CloseKey(reg)
except:
print("*** Unable to register!")
return
print("--- Python", version, "is now registered!")
return
if (QueryValue(reg, installkey) == installpath and
QueryValue(reg, pythonkey) == pythonpath):
CloseKey(reg)
print("=== Python", version, "is already registered!")
return
CloseKey(reg)
print("*** Unable to register!")
print("*** You probably have another Python installation!")
if __name__ == "__main__":
RegisterPy()</code></pre>