C:\Users\liaom>pip install pyInstallerCollecting pyInstaller? Using cached PyInstaller-3.2.1.tar.bz2Requirement already satisfied: setuptools in c:\program files\python36\lib\site-packages (from pyInstaller)Collecting future (from pyInstaller)? Using cached future-0.16.0.tar.gzCollecting pypiwin32 (from pyInstaller)? Using cached pypiwin32-220-cp36-none-win_amd64.whlInstalling collected packages: future, pypiwin32, pyInstaller? Running setup.py install for future ... errorException:Traceback (most recent call last):? File "c:\program files\python36\lib\site-packages\pip\compat\__init__.py", line 73, in console_to_str??? return s.decode(sys.__stdout__.encoding)UnicodeDecodeError: 'utf-8' codec can't decode byte 0xbe in position 78: invalid start byteDuring handling of the above exception, another exception occurred:Traceback (most recent call last):? File "c:\program files\python36\lib\site-packages\pip\basecommand.py", line 215, in main??? status = self.run(options, args)? File "c:\program files\python36\lib\site-packages\pip\commands\install.py", line 342, in run??? prefix=options.prefix_path,? File "c:\program files\python36\lib\site-packages\pip\req\req_set.py", line 784, in install??? **kwargs? File "c:\program files\python36\lib\site-packages\pip\req\req_install.py", line 878, in install??? spinner=spinner,? File "c:\program files\python36\lib\site-packages\pip\utils\__init__.py", line 676, in call_subprocess??? line = console_to_str(proc.stdout.readline())? File "c:\program files\python36\lib\site-packages\pip\compat\__init__.py", line 75, in console_to_str??? return s.decode('utf_8')UnicodeDecodeError: 'utf-8' codec can't decode byte 0xbe in position 78: invalid start byte