用命令【 pip install missingno】安装missingno遇到了一些小问题，百度也没有找到确切的答案

报错如下

-bash: added: command not found

donghaha:~ dongyueqian$ pip install missingno

DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.

Collecting missingno

Using cached https://files.pythonhosted.org/packages/ef/48/f6b96d2c8db54c488b5e54087568a5b943772fce5ce64f690bd5318dc83b/missingno-0.4.2.tar.gz

Requirement already satisfied: numpy in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from missingno) (1.8.0rc1)

Requirement already satisfied: matplotlib in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from missingno) (1.3.1)

Requirement already satisfied: scipy in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from missingno) (0.13.0b1)

Requirement already satisfied: seaborn in ./Library/Python/2.7/lib/python/site-packages (from missingno) (0.9.0)

Requirement already satisfied: python-dateutil in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from matplotlib->missingno) (1.5)

Requirement already satisfied: tornado in ./Library/Python/2.7/lib/python/site-packages (from matplotlib->missingno) (5.1.1)

Requirement already satisfied: pyparsing>=1.5.6 in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from matplotlib->missingno) (2.0.1)

Requirement already satisfied: nose in ./Library/Python/2.7/lib/python/site-packages (from matplotlib->missingno) (1.3.7)

Requirement already satisfied: pandas>=0.15.2 in ./Library/Python/2.7/lib/python/site-packages (from seaborn->missingno) (0.24.2)

Requirement already satisfied: futures in ./Library/Python/2.7/lib/python/site-packages (from tornado->matplotlib->missingno) (3.3.0)

Requirement already satisfied: singledispatch in ./Library/Python/2.7/lib/python/site-packages (from tornado->matplotlib->missingno) (3.4.0.3)

Requirement already satisfied: backports_abc>=0.4 in ./Library/Python/2.7/lib/python/site-packages (from tornado->matplotlib->missingno) (0.5)

Requirement already satisfied: pytz>=2011k in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from pandas>=0.15.2->seaborn->missingno) (2013.7)

Requirement already satisfied: six in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from singledispatch->tornado->matplotlib->missingno) (1.4.1)

Installing collected packages: missingno

Running setup.py install for missingno ... error

Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/bl/4ldjzcfs2d5_93yh_7lcs6mw0000gn/T/pip-install-VDTYEI/missingno/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/bl/4ldjzcfs2d5_93yh_7lcs6mw0000gn/T/pip-record-lbYnbr/install-record.txt --single-version-externally-managed --compile:

running install

running build

running build_py

file missingno.py (for module missingno) not found

creating build

creating build/lib

creating build/lib/missingno

copying missingno/missingno.py -> build/lib/missingno

copying missingno/_version.py -> build/lib/missingno

copying missingno/__init__.py -> build/lib/missingno

copying missingno/utils.py -> build/lib/missingno

file missingno.py (for module missingno) not found

running install_lib

running install_egg_info

running egg_info

writing requirements to missingno.egg-info/requires.txt

writing missingno.egg-info/PKG-INFO

writing top-level names to missingno.egg-info/top_level.txt

writing dependency_links to missingno.egg-info/dependency_links.txt

warning: manifest_maker: standard file '-c' not found

file missingno.py (for module missingno) not found

reading manifest file 'missingno.egg-info/SOURCES.txt'

writing manifest file 'missingno.egg-info/SOURCES.txt'

Copying missingno.egg-info to /Library/Python/2.7/site-packages/missingno-0.4.2-py2.7.egg-info

error: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/missingno-0.4.2-py2.7.egg-info'

----------------------------------------

Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/bl/4ldjzcfs2d5_93yh_7lcs6mw0000gn/T/pip-install-VDTYEI/missingno/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/bl/4ldjzcfs2d5_93yh_7lcs6mw0000gn/T/pip-record-lbYnbr/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/bl/4ldjzcfs2d5_93yh_7lcs6mw0000gn/T/pip-install-VDTYEI/missingno/

于是，试着在后面加上--user,就安装成功了：【pip install missingno --user】