python

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Python是纯粹的自由软件, 源代码和解释器CPython遵循 GPL(GNU General Public License)协议。语法简特色之一是强制用空白符(white space)作为语句缩进。Python具有丰富和强大的库。它常被昵称为胶水语言。
在爬虫工程下运行scrapy crawl报错: Traceback (most recent call last): File "/usr/bin/scrapy", line 11, in load_entry_point('Scrapy==1.6.0', 'console_scripts', 'scrapy')() File "/usr/lib/python2.7/site-packages/Scrapy-1.6.0-py2.7.egg/scrapy/cmdline.py", line 150, in execute _run_print_help(parser, _run_command, cmd, args, opts) File "/usr/lib/python2.7/site-packages/Scrapy-1.6.0-py2.7.egg/scrap