如何让 virtualenv 在 Ubuntu 上看到默认的 python 版本

Question

我在 Ubuntu-16.04 上创建虚拟环境时遇到错误。特别是 virtualenv -p python myenv returns

Traceback (most recent call last):
  File "/usr/local/bin/virtualenv", line 7, in <module>
    from virtualenv.__main__ import run_with_catch
  File "/usr/local/lib/python3.5/dist-packages/virtualenv/__init__.py", line 3, in <module>
    from .run import cli_run, session_via_cli
  File "/usr/local/lib/python3.5/dist-packages/virtualenv/run/__init__.py", line 7, in <module>
    from ..app_data import make_app_data
  File "/usr/local/lib/python3.5/dist-packages/virtualenv/app_data/__init__.py", line 9, in <module>
    from platformdirs import user_data_dir
  File "/usr/local/lib/python3.5/dist-packages/platformdirs/__init__.py", line 29
    result: type[PlatformDirsABC] = getattr(importlib.import_module(module), name)
          ^
SyntaxError: invalid syntax

表示 Python 3.5 中的语法不正确。但是，我已将 Ubuntu 上的默认 python 版本设置为 Python 3.8.9，即 python -V returns Python 3.8.9。那么为什么 virtualenv 指的是 Python 3.5，即使 Python 3.8.9 是默认值？

附加信息：
我的 virtualenv 版本是 15.0.1
回溯中的第一行引用 /usr/local/bin/virtualenv，看起来像这样

#!/usr/bin/python3

# -*- coding: utf-8 -*-
import re
import sys

from virtualenv.__main__ import run_with_catch

if __name__ == '__main__':
    sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
    sys.exit(run_with_catch())

更新：
运行 python3 -m pip install virtualenv returns

Traceback (most recent call last):
  File "/usr/lib/python3.8/runpy.py", line 185, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/python3.8/runpy.py", line 144, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/python3.8/runpy.py", line 111, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/python3/dist-packages/pip/__init__.py", line 14, in <module>
    from pip.utils import get_installed_distributions, get_prog
  File "/usr/lib/python3/dist-packages/pip/utils/__init__.py", line 23, in <module>
    from pip.locations import (
  File "/usr/lib/python3/dist-packages/pip/locations.py", line 9, in <module>
    from distutils import sysconfig
ImportError: cannot import name 'sysconfig' from 'distutils' (/usr/lib/python3.8/distutils/__init__.py)

Answer 1

您可以使用以下命令确保 virtualenv 默认引用 python3.8

python3.8 -m virtualenv myenv

如何让 virtualenv 在 Ubuntu 上看到默认的 python 版本

how to make virtualenv see the default python version on Ubuntu

python

ubuntu

virtualenv

python-3.x

ubuntu-16.04