我在 Windows 8.1 64 位操作系统上运行 Python(x,y) 2.7.10.0。我之前使用过 pip 来安装一些软件包,但现在当我尝试
pip install nltk
pip install pycallgraph
pip search nltk
pip install selenium
我收到以下错误
C:\Python27\lib\site-packages\xy>pip search nltk
Traceback (most recent call last):
File "C:\Python27\Scripts\pip-script.py", line 5, in <module>
from pkg_resources import load_entry_point
File "build\bdist.win32\egg\pkg_resources.py", line 2880, in <module>
File "build\bdist.win32\egg\pkg_resources.py", line 432, in _build_master
File "build\bdist.win32\egg\pkg_resources.py", line 741, in require
File "build\bdist.win32\egg\pkg_resources.py", line 586, in resolve
File "build\bdist.win32\egg\pkg_resources.py", line 2714, in parse_requirements
File "build\bdist.win32\egg\pkg_resources.py", line 2690, in scan_list
ValueError: ("Expected ',' or end-of-list in", 'pip==7.0.3+xy.11', 'at', '+xy.11')
最佳答案
我在 Windows 上也遇到了这个问题。无论我尝试用 pip 做什么,我都会收到此错误。解决方案是:
python -m pip install -U pip setuptools
我在install-pip说明页面上找到了它:https://packaging.python.org/installing/#install-pip-setuptools-and-wheel
关于python - pip install 抛出值错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33354878/