python 2.7.6，pip 9.0.1，virtualenv 15.1.0，無python3，內(nèi)存充足，報錯如下：C:\Users\Administrator>virtualenv?scrapytest New?python?executable?in?C:\Users\Administrator\scrapytest\Scripts\python.exe Installing?setuptools,?pip,?wheel... ??Complete?output?from?command?C:\Users\Administrat...t\Scripts\python.exe?-?set uptools?pip?wheel: ??Collecting?setuptools Exception: Traceback?(most?recent?call?last): ??File?"C:\Python27\Lib\site-packages\virtualenv_support\pip-9.0.1-py2.py3-none- any.whl\pip\basecommand.py",?line?215,?in?main ????status?=?self.run(options,?args) ??File?"C:\Python27\Lib\site-packages\virtualenv_support\pip-9.0.1-py2.py3-none- any.whl\pip\commands\install.py",?line?324,?in?run ????requirement_set.prepare_files(finder) ??File?"C:\Python27\Lib\site-packages\virtualenv_support\pip-9.0.1-py2.py3-none- any.whl\pip\req\req_set.py",?line?380,?in?prepare_files ????ignore_dependencies=self.ignore_dependencies)) ??File?"C:\Python27\Lib\site-packages\virtualenv_support\pip-9.0.1-py2.py3-none- any.whl\pip\req\req_set.py",?line?554,?in?_prepare_file ????require_hashes ??File?"C:\Python27\Lib\site-packages\virtualenv_support\pip-9.0.1-py2.py3-none- any.whl\pip\req\req_install.py",?line?278,?in?populate_link ????self.link?=?finder.find_requirement(self,?upgrade) ??File?"C:\Python27\Lib\site-packages\virtualenv_support\pip-9.0.1-py2.py3-none- any.whl\pip\index.py",?line?465,?in?find_requirement ????all_candidates?=?self.find_all_candidates(req.name) ??File?"C:\Python27\Lib\site-packages\virtualenv_support\pip-9.0.1-py2.py3-none- any.whl\pip\index.py",?line?386,?in?find_all_candidates ????self.find_links,?expand_dir=True) ??File?"C:\Python27\Lib\site-packages\virtualenv_support\pip-9.0.1-py2.py3-none- any.whl\pip\index.py",?line?236,?in?_sort_locations ????sort_path(os.path.join(path,?item)) ??File?"C:\Python27\Lib\site-packages\virtualenv_support\pip-9.0.1-py2.py3-none- any.whl\pip\index.py",?line?217,?in?sort_path ????if?mimetypes.guess_type(url,?strict=False)[0]?==?'text/html': ??File?"c:\python27\Lib\mimetypes.py",?line?297,?in?guess_type ????init() ??File?"c:\python27\Lib\mimetypes.py",?line?358,?in?init ????db.read_windows_registry() ??File?"c:\python27\Lib\mimetypes.py",?line?258,?in?read_windows_registry ????for?subkeyname?in?enum_types(hkcr): ??File?"c:\python27\Lib\mimetypes.py",?line?249,?in?enum_types ????ctype?=?ctype.encode(default_encoding)?#?omit?in?3.x! UnicodeDecodeError:?'ascii'?codec?can't?decode?byte?0xc2?in?position?1:?ordinal not?in?range(128) ---------------------------------------- ...Installing?setuptools,?pip,?wheel...done. Traceback?(most?recent?call?last): ??File?"c:\python27\lib\runpy.py",?line?162,?in?_run_module_as_main ????"__main__",?fname,?loader,?pkg_name) ??File?"c:\python27\lib\runpy.py",?line?72,?in?_run_code ????exec?code?in?run_globals ??File?"C:\Python27\Scripts\virtualenv.exe\__main__.py",?line?9,?in?<module> ??File?"C:\Python27\Lib\site-packages\virtualenv.py",?line?713,?in?main ????symlink=options.symlink) ??File?"C:\Python27\Lib\site-packages\virtualenv.py",?line?945,?in?create_enviro nment ????download=download, ??File?"C:\Python27\Lib\site-packages\virtualenv.py",?line?901,?in?install_wheel ????call_subprocess(cmd,?show_stdout=False,?extra_env=env,?stdin=SCRIPT) ??File?"C:\Python27\Lib\site-packages\virtualenv.py",?line?797,?in?call_subproce ss ????%?(cmd_desc,?proc.returncode)) OSError:?Command?C:\Users\Administrat...t\Scripts\python.exe?-?setuptools?pip?wh eel?failed?with?error?code?2