C:\Anaconda2>pip install watchdog-0.8.3-py2.py3-none-any.whl
Requirement already satisfied (use --upgrade to upgrade): watchdog==0.8.3 from file:///C:/Anaconda2/watchdog-0.8.3-py2.py3-none-any.whl in c:\anaconda2\lib\site-packages\watchdog-0.8.3-py2.7.egg
Requirement already satisfied (use --upgrade to upgrade): PyYAML>=3.10 in c:\anaconda2\lib\site-packages (from watchdog==0.8.3)
Collecting argh>=0.24.1 (from watchdog==0.8.3)
Could not fetch URL https://pypi.python.org/simple/argh/: There was a problem confirming the ssl certificate: EOF occurred in violation of protocol (_ssl.c:590) - skipping
Could not find a version that satisfies the requirement argh>=0.24.1 (from watchdog==0.8.3) (from versions: )
No matching distribution found for argh>=0.24.1 (from watchdog==0.8.3)
尝试安装监视程序包时出现上述错误。任何人都有同样的问题。我也尝试使用setup.py进行安装，但最终也出现了错误.pip冻结输出为：
C:\Anaconda2>pip freeze
alabaster==0.7.7
anaconda-client==1.2.2
argcomplete==1.0.0
astropy==1.1.1
Babel==2.2.0
backports-abc==0.4
backports.ssl-match-hostname==3.4.0.2
beautifulsoup4==4.4.1
bitarray==0.8.1
blaze==0.9.0
blp.dtp.bcos==0.2.1
blpapi==3.9.0
bokeh==0.11.0
boto==2.39.0
Bottleneck==1.0.0
bqapi==0.5.5
cdecimal==2.3
cffi==1.2.1
clyent==1.2.0
colorama==0.3.6
comtypes==1.1.2
conda==3.19.1
conda-build==1.19.0
conda-env==2.4.5
configobj==5.0.6
cryptography==0.9.1
cx-Oracle==5.2.1+oci12c
pyreadline==2.1
pytest==2.8.5
python-dateutil==2.4.2
pytz==2015.7
pywin32==219
PyYAML==3.12
unicodecsv==0.14.1
watchdog==0.8.3
watcher==0.2.1
Werkzeug==0.11.3
xlrd==0.9.4
XlsxWriter==0.8.4
xlwings==0.6.4
xlwt==1.0.0