基于windows下pip安装python模块时报错总结

C:Usersljf>pip install xlwt
Exception:
Traceback (most recent call last):
 File "c:program filespython35libsite-packagespipbasecommand.py", line 21
1, in main
  status = self.run(options, args)
 File "c:program filespython35libsite-packagespipcommandsinstall.py", li
ne 311, in run
  root=options.root_path,
 File "c:program filespython35libsite-packagespipreqreq_set.py", line 64
6, in install
  **kwargs
 File "c:program filespython35libsite-packagespipreqreq_install.py", lin
e 803, in install
  self.move_wheel_files(self.source_dir, root=root)
 File "c:program filespython35libsite-packagespipreqreq_install.py", lin
e 998, in move_wheel_files
  isolated=self.isolated,
 File "c:program filespython35libsite-packagespipwheel.py", line 339, in
move_wheel_files
  clobber(source, lib_dir, True)
 File "c:program filespython35libsite-packagespipwheel.py", line 310, in
clobber
  ensure_dir(destdir)
 File "c:program filespython35libsite-packagespiputils__init__.py", line
 71, in ensure_dir
  os.makedirs(path)
 File "c:program filespython35libos.py", line 241, in makedirs
  mkdir(name, mode)
PermissionError: [WinError 5] 拒绝访问。: 'c:\program files\python35\Lib\sit
e-packages\xlwt'