相关疑难解决方法(0)

我也试过安装/卸载pyparsing,但它不起作用.我坚持这个,我也必须安装其他库.

这是错误消息:

Traceback (most recent call last): 
File "/usr/bin/pip", line 5, in <module>
    from pkg_resources import load_entry_point
File "/home/rachana/.local/lib/python2.7/site-packages/pkg_resour??ces/__init__.py", line 72, in <module>
    import packaging.requirements
File "/home/rachana/.local/lib/python2.7/site-packages/packaging/??requirements.py", line 9, in <module>
    from pyparsing import stringStart, stringEnd, originalTextFor, ParseException
ImportError: No module named pyparsing

我怎样才能解决这个问题？

当我尝试使用 pip 安装任何软件包或使用 pip 时，出现以下错误：

ImportError: cannot import name 'appdirs'

一个例子：

!pip install tweepy
Traceback (most recent call last): 
    File "/Users/user_name/anaconda3/bin/pip", line 6, 
    in <module> from pip._internal.cli.main import main
    File "/Users/user_name/anaconda3/lib/python3.6/site- 
    packages/pip/_internal/cli/main.py", line 10, in <module>
    from pip._internal.cli.autocompletion import autocomplete
    File "/Users/user_name/anaconda3/lib/python3.6/site- 
    packages/pip/_internal/cli/autocompletion.py", line 9, in <module>
    from pip._internal.cli.main_parser import create_main_parser
    File "/Users/user_name/anaconda3/lib/python3.6/site- 
    packages/pip/_internal/cli/main_parser.py", line 7, in <module>
    from pip._internal.cli import cmdoptions
    File "/Users/user_name/anaconda3/lib/python3.6/site- 
    packages/pip/_internal/cli/cmdoptions.py", line 25, in <module>
    from pip._internal.locations import USER_CACHE_DIR, get_src_prefix
    File "/Users/user_name/anaconda3/lib/python3.6/site- 
    packages/pip/_internal/locations.py", line 19, in …