尝试使用pip安装桌面库时，如何解决“ ERROR：命令错误，退出状态1：”？

Question

我正在重新访问python语言，并且在设置环境方面遇到困难。
我正在使用-python 3.8.2（与系统打包在一起）-robotframework-desktoplibrary 1.0.1-pip 20.2.3
尝试通过pip安装桌面库时遇到错误消息。我相信该错误是由pip尝试在python 3.8文件夹（没有足够的权限）而不是python 3文件夹中安装引起的。
尝试通过pip安装robotframework-desktoplibrary时遇到以下错误消息：

Collecting robotframework-desktoplibrary
  Using cached robotframework-desktoplibrary-1.0.1.zip (15.6 MB)
    ERROR: Command errored out with exit status 1:
     command: 'c:\users\shivendra.singh\appdata\local\programs\python\python38\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\shivendra.singh\\AppData\\Local\\Temp\\pip-install-kcqq2ihh\\robotframework-desktoplibrary\\setup.py'"'"'; __file__='"'"'C:\\Users\\shivendra.singh\\AppData\\Local\\Temp\\pip-install-kcqq2ihh\\robotframework-desktoplibrary\\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 'C:\Users\shivendra.singh\AppData\Local\Temp\pip-pip-egg-info-bisto_oa'
         cwd: C:\Users\shivendra.singh\AppData\Local\Temp\pip-install-kcqq2ihh\robotframework-desktoplibrary\
    Complete output (5 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Users\shivendra.singh\AppData\Local\Temp\pip-install-kcqq2ihh\robotframework-desktoplibrary\setup.py", line 4, in <module>
        execfile(join(dirname(abspath(__file__)), 'target', 'src', 'SikuliLibrary', 'version.py'))
    NameError: name 'execfile' is not defined
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

该如何解决？