bug#27680: error occured when install Pillow for python2.7 on win10ubuntu

[zhs_cn]

Cleaning up...  Removing temporary dir 
/mnt/c/Users/zhanghs/enve/build...Command /mnt/c/Users/zhanghs/enve/bin/python 
-c "import setuptools, 
tokenize;__file__='/mnt/c/Users/zhanghs/enve/build/Pillow/setup.py';exec(compile(getattr(tokenize,
 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" 
install --record /tmp/pip-Rto_Am-record/install-record.txt 
--single-version-externally-managed --compile --install-headers 
/mnt/c/Users/zhanghs/enve/include/site/python2.7 failed with error code 1 in 
/mnt/c/Users/zhanghs/enve/build/PillowException information:Traceback (most 
recent call last):  File 
"/mnt/c/Users/zhanghs/enve/local/lib/python2.7/site-packages/pip/basecommand.py",
 line 122, in main    status = self.run(options, args)  File 
"/mnt/c/Users/zhanghs/enve/local/lib/python2.7/site-packages/pip/commands/install.py",
 line 283, in run    requirement_set.install(install_options, global_options, 
root=options.root_path)  File 
"/mnt/c/Users/zhanghs/enve/local/lib/python2.7/site-packages/pip/req.py", line 
1435, in install    requirement.install(install_options, global_options, *args, 
**kwargs)  File 
"/mnt/c/Users/zhanghs/enve/local/lib/python2.7/site-packages/pip/req.py", line 
706, in install    cwd=self.source_dir, filter_stdout=self._filter_install, 
show_stdout=False)  File 
"/mnt/c/Users/zhanghs/enve/local/lib/python2.7/site-packages/pip/util.py", line 
697, in call_subprocess    % (command_desc, proc.returncode, 
cwd))InstallationError: Command /mnt/c/Users/zhanghs/enve/bin/python -c "import 
setuptools, 
tokenize;__file__='/mnt/c/Users/zhanghs/enve/build/Pillow/setup.py';exec(compile(getattr(tokenize,
 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" 
install --record /tmp/pip-Rto_Am-record/install-record.txt 
--single-version-externally-managed --compile --install-headers 
/mnt/c/Users/zhanghs/enve/include/site/python2.7 failed with error code 1 in 
/mnt/c/Users/zhanghs/enve/build/Pillowtail: unrecognized file system type 
0x53464846 for ‘/root/.pip/pip.log’. please report this to address@hidden 
reverting to pollingSent from YoMail