当我尝试在 PyCharm 解释器中安装软件包时，它会生成一个错误：
Error: Traceback (most recent call last):
File "/home/x/pycharm-2019.2/helpers/packaging_tool.py", line 73, in run_pip
runpy.run_module(module_name, run_name='__main__', alter_sys=True)
File "/usr/lib/python3.6/runpy.py", line 205, in run_module
return _run_module_code(code, init_globals, run_name, mod_spec)
File "/usr/lib/python3.6/runpy.py", line 96, in _run_module_code
mod_name, mod_spec, pkg_name, script_name)
File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/usr/local/lib/python3.6/dist-packages/pip/__main__.py", line 16, in <module>
from pip._internal.cli.main import main as _main # isort:skip # noqa
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/cli/main.py", line 10, in <module>
from pip._internal.cli.autocompletion import autocomplete
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/cli/autocompletion.py", line 9, in <module>
from pip._internal.cli.main_parser import create_main_parser
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/cli/main_parser.py", line 7, in <module>
from pip._internal.cli import cmdoptions
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/cli/cmdoptions.py", line 19, in <module>
from distutils.util import strtobool
ModuleNotFoundError: No module named 'distutils.util'
有人能帮忙解决这个问题吗？谢谢。