Python 3.x pycopy-xml.etree.ElementTree未安装

我正在尝试使用命令安装包xml.etree.ElementTree（从PyCharm内部以及从命令行）

进程失败，输出如下

Collecting pycopy-xml.etree.ElementTree
  Using cached pycopy-xml.etree.ElementTree-0.1.3.tar.gz (1.9 kB)
    ERROR: Command errored out with exit status 1:
     command: 'C:\Users\xxxxxxxx\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\xxxxxxxx\\AppData\\Local\\Temp\\pip-install-npssdelu\\pycopy-xml-etree-elementtree\\setup.py'"'"'; __file__='"'"'C:\\Users\\xxxxxxxx\\AppData\\Local\\Temp\\pip-install-npssdelu\\pycopy-xml-etree-elementtree\\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\xxxxxxxx\AppData\Local\Temp\pip-pip-egg-info-eh_gxd2r'
         cwd: C:\Users\xxxxxxxx\AppData\Local\Temp\pip-install-npssdelu\pycopy-xml-etree-elementtree\
    Complete output (5 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1776.0_x64__qbz5n2kfra8p0\lib\tokenize.py", line 392, in open
        buffer = _builtin_open(filename, 'rb')
    FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\xxxxxxxx\\AppData\\Local\\Temp\\pip-install-npssdelu\\pycopy-xml-etree-elementtree\\setup.py'
    ----------------------------------------

正在收集pycopy-xml.etree.ElementTree
使用缓存的pycopy-xml.etree.ElementTree-0.1.3.tar.gz（1.9KB）
错误：命令出错，退出状态为1:
命令：“C:\Users\xxxxxxxx\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\Python.exe'-C”导入系统，设置工具，标记化；sys.argv[0]=“C:\\Users\\xxxxxxxx\\AppData\\Local\\Temp\\pip install npssdelu\\pycopy xml etree elementtree\\setup.py”“”__文件“'''''''C:\\Users\\xxxxxxxx\\AppData\\Local\\Temp\\pip install npssdelu\\pycopy xml etree elementtree\\setup.py''”；f=getattr（标记化，“'open'”，open）（\uuuuu文件）；code=f.read（）.replace（“\r\n”“”、“\n”“”）；f、 close（）；exec（编译（代码，“'exec'”）“鸡蛋信息——鸡蛋库”C:\Users\xxxxxxxx\AppData\Local\Temp\pip-pip-egg-info-eh\u gxd2r”
cwd:C:\Users\xxxxxxxx\AppData\Local\Temp\pip安装npssdelu\pycopy xml etree元素树\
完整输出（5行）：
回溯（最近一次呼叫最后一次）：
文件“”，第1行，在
文件“C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1776.0_x64_qbz5n2kfra8p0\lib\tokenize.py”，第392行，打开
缓冲区=\u内置\u打开（文件名'rb'）
FileNotFoundError:[Errno 2]没有这样的文件或目录：“C:\\Users\\xxxxxxxx\\AppData\\Local\\Temp\\pip install npssdelu\\pycopy xml etree elementtree\\setup.py”
----------------------------------------

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我下载了依赖包pycopy-xmltok2，并试图在PyCharm中安装它，但也失败了。如何重置环境？我尝试卸载并重新安装PyCharm，但在新安装中无法安装该软件包。我尝试安装openpyxl，结果成功。因此，问题似乎在于xml.etree.ElementTree。是否有人遇到过类似问题？链接到答案：

Collecting pycopy-xml.etree.ElementTree
  Using cached pycopy-xml.etree.ElementTree-0.1.3.tar.gz (1.9 kB)
    ERROR: Command errored out with exit status 1:
     command: 'C:\Users\xxxxxxxx\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\xxxxxxxx\\AppData\\Local\\Temp\\pip-install-npssdelu\\pycopy-xml-etree-elementtree\\setup.py'"'"'; __file__='"'"'C:\\Users\\xxxxxxxx\\AppData\\Local\\Temp\\pip-install-npssdelu\\pycopy-xml-etree-elementtree\\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\xxxxxxxx\AppData\Local\Temp\pip-pip-egg-info-eh_gxd2r'
         cwd: C:\Users\xxxxxxxx\AppData\Local\Temp\pip-install-npssdelu\pycopy-xml-etree-elementtree\
    Complete output (5 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1776.0_x64__qbz5n2kfra8p0\lib\tokenize.py", line 392, in open
        buffer = _builtin_open(filename, 'rb')
    FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\xxxxxxxx\\AppData\\Local\\Temp\\pip-install-npssdelu\\pycopy-xml-etree-elementtree\\setup.py'
    ----------------------------------------