Python PIP installs scrapy with an error of twisted

Scrapy relies on the following packages:
lxml: an efficient XML and HTML parser
w3lib: a multifunctional assistant for handling URL and web page coding
twisted: an asynchronous network framework
cryptography and pyopenssl: handling various network level security requirements
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1. Run PIP security first Install PIP install scrape
2. After the installation, except for the error twisted, the other dependent packages should be installed

Then download twisted by yourself. Note: it should correspond to your Python version number and the number of digits of the computer system
I use Python 37 and the system is 64 bits
https://www.lfd.uci.edu/ ~gohlke/pythonlibs/

3. After downloading, install pip. PIP install [file path] \ twisted-18.9.0-cp37-cp37m-win_AMD64. WHL
4. Run the PIP installation of scripy again for the last time to install successfully

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copyright notice: This article is the original article of CSDN blogger “Sagittarius 32”, which follows the CC 4.0 by-sa copyright agreement. Please attach the source link of the original text and this notice for reprint
original link: https://blog.csdn.net/sagittarius32/article/details/85345142

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