Before installing scrapy
To install the following package:
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pip install lxml -
pip install w3lib
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pip install parcels
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pip install cryptography
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pip install pyOpenSSL
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pip install twisted
Here twisted when installed directly in the package being given, so to https://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted download files .whl
The version number is later cp python, the Win32 and win_amd64 represent 32 and 64 version of the computer, such as computer I is 64, is installed python 3.7, download Twisted-19.2.0-cp37-cp37m-win32 .whl, it can be used.
In .whl command line to install the downloaded file, enter the command: pip install F: \ python-3.7.2 \ full path to the preservation of Twisted-19.2.0-cp37-cp37m-win32.whl here to write files.
Can be installed after the installation was successful scrapy, enter the command: pip install scrapy