                             ">": operator.gt,
                             "<": operator.lt}
          self._env = environment
          self._is_gui = is_gui
  
          if not self._env.is_installer and not self._env.updater:
              self._ask_continue()
          self._env.get_required_packages()
 
</s> remove         retcode = self._pexpect_installer(condaexe, clean_pkg)
 </s> add         retcode = self._installer(condaexe, clean_pkg) </s> remove         if self._pexpect_installer(pipexe, package) != 0:
 </s> add         if self._installer(pipexe, package) != 0:
        if self._env.os_version[0] == "Windows":
            self._installer = self._subproc_installer
        else:
            self._installer = self._pexpect_installer
                             ">": operator.gt,
                             "<": operator.lt}
          self._env = environment
          self._is_gui = is_gui
        if self._env.os_version[0] == "Windows":
            self._installer = self._subproc_installer
        else:
            self._installer = self._pexpect_installer
  
          if not self._env.is_installer and not self._env.updater:
              self._ask_continue()
          self._env.get_required_packages()
keep keep keep add keep keep keep keep
 setup.py: bugfix - use correct installer for Windows 
setup.py