python site.getsitepackages()这 个包下面的三个包都是干啥的？

Question

>>> site.getsitepackages()
['/usr/lib64/python3.4/site-packages', '/usr/lib/python3.4/site-packages', '/usr/lib/site-python']

这三个目录是干啥的？
>>>
[1]+  Stopped                 python3
shenjianlin@iZm5eirdrun3ajzx3iii0wZ:~$ cd /usr/lib/python3.4/site-packages/
shenjianlin@iZm5eirdrun3ajzx3iii0wZ:/usr/lib/python3.4/site-packages$ ls
apache_libcloud-2.0.0-py3.4.egg-info  flask                              pip                              six-1.10.0-py3.4.egg-info
backports_abc-0.5-py3.4.egg-info      Flask-0.12.dist-info               pip-10.0.1.dist-info             six-1.11.0.dist-info
backports_abc.py                      future                             pipenv                           six.py
bleach                                future-0.16.0.dist-info            pipenv-10.1.0.dist-info          sklearn-0.0.dist-info
bleach-1.5.0.dist-info                html5lib                           pkg_resources                    tensorboard
certifi                               html5lib-0.9999999-py3.4.egg-info  pybind11                         tensorflow
certifi-2018.1.18.dist-info           idna                               pybind11-2.2.1.dist-info         tensorflow_tensorboard-0.4.0.dist-info
chardet                               idna-2.6.dist-info                 __pycache__                      tests
chardet-3.0.4.dist-info               itsdangerous-0.24.dist-info        pyparsing-2.2.0.dist-info        tflearn
click                                 itsdangerous.py                    pyparsing.py                     tflearn-0.3.2.dist-info
click-6.7.dist-info                   jieba                              pyquery                          tqdm
clonevirtualenv.py                    jieba-0.39.dist-info               pyquery-1.4.0.dist-info          tqdm-4.23.4.dist-info
cssselect                             jinja2                             python_dateutil-2.7.3.dist-info  urllib3
cssselect-1.0.3.dist-info             Jinja2-2.10.dist-info              pytz                             urllib3-1.22.dist-info
cycler-0.10.0.dist-info               Jinja2-2.8-py3.4.egg-info          pytz-2018.4.dist-info            virtualenv-15.1.0.dist-info
cycler.py                             libcloud                           requests                         virtualenv_clone-0.2.6.dist-info
dateutil                              libfuturize                        requests-2.18.4.dist-info        virtualenv.py
easy-install.pth                      libpasteurize                      salt                             virtualenv_support
easy_install.py                       _markerlib                         salt-2018.3.0-py3.4.egg-info     wheel
enum                                  markupsafe                         selenium                         wheel-0.30.0.dist-info
enum34-1.1.6.dist-info                MarkupSafe-1.0.dist-info           selenium-3.12.0.dist-info        xlrd
external                              past                               setuptools                       xlrd-1.1.0.dist-info
fake_useragent                        pew                                setuptools-19.2-py3.4.egg-info   yt_common
fake_useragent-0.1.10.dist-info       pew-1.1.2.dist-info                setuptools-38.4.0.dist-info

Answer 1

就是用来放你用 pip、 easy_install 或者直接 python setup.py install 安装的第三方包