pip install scrapy 失败的解决办法
pip install scrapy 错误信息
Looking in indexes: http://mirrors.cloud.aliyuncs.com/pypi/simple/
Collecting scrapy
Downloading http://mirrors.cloud.aliyuncs.com/pypi/packages/d2/b1/105fe9a289e5bb64ec104076546f72060296d9989a0fc31a8b608c810868/Scrapy-2.2.0-py2.py3-none-any.whl (241 kB)
|| 241 kB 29.1 MB/s
Collecting w3lib>=1.17.0
Downloading http://mirrors.cloud.aliyuncs.com/pypi/packages/a3/59/b6b14521090e7f42669cafdb84b0ab89301a42f1f1a82fcf5856661ea3a7/w3lib-1.22.0-py2.py3-none-any.whl (20 kB)
Collecting PyDispatcher>=2.0.5
Downloading http://mirrors.cloud.aliyuncs.com/pypi/packages/cd/37/39aca520918ce1935bea9c356bcbb7ed7e52ad4e31bff9b943dfc8e7115b/PyDispatcher-2.0.5.tar.gz (34 kB)
Collecting service-identity>=16.0.0
Downloading http://mirrors.cloud.aliyuncs.com/pypi/packages/e9/7c/2195b890023e098f9618d43ebc337d83c8b38d414326685339eb024db2f6/service_identity-18.1.0-py2.py3-none-any.whl (11 kB)
Collecting cssselect>=0.9.1
Downloading http://mirrors.cloud.aliyuncs.com/pypi/packages/3b/d4/3b5c17f00cce85b9a1e6f91096e1cc8e8ede2e1be8e96b87ce1ed09e92c5/cssselect-1.1.0-py2.py3-none-any.whl (16 kB)
Collecting cryptography>=2.0
Downloading http://mirrors.cloud.aliyuncs.com/pypi/packages/3c/04/686efee2dcdd25aecf357992e7d9362f443eb182ecd623f882bc9f7a6bba/cryptography-2.9.2-cp35-abi3-manylinux2010_x86_64.whl (2.7 MB)
|| 2.7 MB 20.0 MB/s
Collecting Twisted>=17.9.0
Downloading http://mirrors.cloud.aliyuncs.com/pypi/packages/4a/b4/4973c7ccb5be2ec0abc779b7d5f9d5f24b17b0349e23240cfc9dc3bd83cc/Twisted-20.3.0.tar.bz2 (3.1 MB)
|| 3.1 MB 30.2 MB/s
ERROR: Command errored out with exit status 1:
command: /usr/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-48gtgdpk/Twisted/setup.py'"'"'; __file__='"'"'/tmp/pip-install-48gtgdpk/Twisted/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-48gtgdpk/Twisted/pip-egg-info
cwd: /tmp/pip-install-48gtgdpk/Twisted/
Complete output (33 lines):
WARNING: The repository located at mirrors.cloud.aliyuncs.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with '--trusted-host mirrors.cloud.aliyuncs.com'.
ERROR: Could not find a version that satisfies the requirement incremental>=16.10.1 (from versions: none)
ERROR: No matching distribution found for incremental>=16.10.1
Traceback (most recent call last):
File "/usr/local/lib/python3.8/dist-packages/setuptools/installer.py", line 128, in fetch_build_egg
subprocess.check_call(cmd)
File "/usr/lib/python3.8/subprocess.py", line 364, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/usr/bin/python3', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmpfh5tnabd', '--quiet', '--index-url', 'http://mirrors.cloud.aliyuncs.com/pypi/simple/', 'incremental>=16.10.1']' returned non-zero exit status 1.
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "", line 1, in
File "/tmp/pip-install-48gtgdpk/Twisted/setup.py", line 20, in
setuptools.setup(**_setup["getSetupArgs"]())
File "/usr/local/lib/python3.8/dist-packages/setuptools/__init__.py", line 164, in setup
_install_setup_requires(attrs)
File "/usr/local/lib/python3.8/dist-packages/setuptools/__init__.py", line 159, in _install_setup_requires
dist.fetch_build_eggs(dist.setup_requires)
File "/usr/local/lib/python3.8/dist-packages/setuptools/dist.py", line 699, in fetch_build_eggs
resolved_dists = pkg_resources.working_set.resolve(
File "/usr/local/lib/python3.8/dist-packages/pkg_resources/__init__.py", line 780, in resolve
dist = best[req.key] = env.best_match(
File "/usr/local/lib/python3.8/dist-packages/pkg_resources/__init__.py", line 1065, in best_match
return self.obtain(req, installer)
File "/usr/local/lib/python3.8/dist-packages/pkg_resources/__init__.py", line 1077, in obtain
return installer(requirement)
File "/usr/local/lib/python3.8/dist-packages/setuptools/dist.py", line 758, in fetch_build_egg
return fetch_build_egg(self, req)
File "/usr/local/lib/python3.8/dist-packages/setuptools/installer.py", line 130, in fetch_build_egg
raise DistutilsError(str(e)) from e
distutils.errors.DistutilsError: Command '['/usr/bin/python3', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmpfh5tnabd', '--quiet', '--index-url', 'http://mirrors.cloud.aliyuncs.com/pypi/simple/', 'incremental>=16.10.1']' returned non-zero exit status 1.
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output. 解决方法：(注意：不要过度关注于最后一个错误，要从前面第一个错误找起；否则百度一天也解决不了)
sudo pip install incremental==17.5.0成功！