大家，早安，
首先，我想明确表示我检查过这个问题之前是否被问过，如果它已经被回答，我就会解决这个问题。我发现了这个： ModuleNotFoundError: No module named 'Scrapy' 这已经做了一年多了，答案并没有解决与我作为编写它的人有关的任何问题。
我认为我的 MacO 有问题。当我在https://scrapy.org上编写此代码时，在安装 python3 和 scrapy 后它根本不起作用
使用
brew install python3
和刮痧
pip install scrapy
然后我使用scrapy网站的代码：
import scrapy
class BlogSpider(scrapy.Spider):
name = 'blogspider'
start_urls = ['https://fr.wikipedia.org/wiki/Catégorie:Personnage_d%27animation']
def parse(self, response):
for title in response.css('div#mw-pages div.mw-category li'):
yield {'character': title.css('a ::text').extract_first()}
然后我收到两种类型的消息：
如果我运行代码：
scrapy runspider myspider.py
我收到消息：
bash: scrapy: command not found
如果我打开 python3 并只写：
import scrapy
我收到这条消息：
ModuleNotFoundError: No module named 'scrapy'
有人可以帮我解决这个问题，因为我不记得我该怎么做我已经卸载了python和scrapy，但没有任何改变。
然后我用：
pip3 install scrapy
正如 DavidG 告诉我的那样
但我收到这条消息：
-bash: pip3: command not found
所以经过几次搜索，我只是尝试重新安装Python3，所以我使用了：
brew install python3
所以我写道：
pip3 --version
并展示了这一点：
pip 10.0.1 from /usr/local/lib/python3.7/site-packages/pip (python 3.7)
下一个：
scrapy --version
并收到：
Scrapy 1.5.1 - no active project
所以我再次尝试使用该命令：
scrapy runspider myspider.py
并收到了这个：
2018-07-18 20:11:49 [scrapy.utils.log] INFO: Scrapy 1.5.1 started (bot: scrapybot)
2018-07-18 20:11:49 [scrapy.utils.log] INFO: Versions: lxml 4.2.3.0, libxml2 2.9.4, cssselect 1.0.3, parsel 1.5.0,w3lib 1.19.0, Twisted 18.7.0, Python 3.7.0 (default, Jun 29 2018, 20:13:13) - [Clang 9.1.0 (clang-902.0.39.2)], pyOpenSSL 18.0.0 (OpenSSL 1.1.0h 27 Mar 2018), cryptography 2.3, Platform Darwin-17.6.0-x86_64-i386-64bit
2018-07-18 20:11:49 [scrapy.crawler] INFO: Overridden settings: {'SPIDER_LOADER_WARN_ONLY': True}
Traceback (most recent call last):
File "/usr/local/bin/scrapy", line 11, in <module>
sys.exit(execute())
File "/usr/local/lib/python3.7/site-packages/scrapy/cmdline.py", line 150, in execute
_run_print_help(parser, _run_command, cmd, args, opts)
File "/usr/local/lib/python3.7/site-packages/scrapy/cmdline.py", line 90, in _run_print_help
func(*a, **kw)
File "/usr/local/lib/python3.7/site-packages/scrapy/cmdline.py", line 157, in _run_command
cmd.run(args, opts)
File "/usr/local/lib/python3.7/site-packages/scrapy/commands/runspider.py", line 88, in run
self.crawler_process.crawl(spidercls, **opts.spargs)
File "/usr/local/lib/python3.7/site-packages/scrapy/crawler.py", line 170, in crawl
crawler = self.create_crawler(crawler_or_spidercls)
File "/usr/local/lib/python3.7/site-packages/scrapy/crawler.py", line 198, in create_crawler
return self._create_crawler(crawler_or_spidercls)
File "/usr/local/lib/python3.7/site-packages/scrapy/crawler.py", line 203, in _create_crawler
return Crawler(spidercls, self.settings)
File "/usr/local/lib/python3.7/site-packages/scrapy/crawler.py", line 55, in __init__
self.extensions = ExtensionManager.from_crawler(self)
File "/usr/local/lib/python3.7/site-packages/scrapy/middleware.py", line 58, in from_crawler
return cls.from_settings(crawler.settings, crawler)
File "/usr/local/lib/python3.7/site-packages/scrapy/middleware.py", line 34, in from_settings
mwcls = load_object(clspath)
File "/usr/local/lib/python3.7/site-packages/scrapy/utils/misc.py", line 44, in load_object
mod = import_module(module)
File "/usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/usr/local/lib/python3.7/site-packages/scrapy/extensions/telnet.py", line 12, in <module>
from twisted.conch import manhole, telnet
File "/usr/local/lib/python3.7/site-packages/twisted/conch/manhole.py", line 154
def write(self, data, async=False):
^
SyntaxError: invalid syntax
有人可以告诉我发生了什么以及如何纠正它吗？