python - 安装

声明：所有操作均是在mac OS 环境下

Python2默认没有安装pip工具，但是安装的easy_install，我们可以用easy_install安装pip，在用pip安装其他的第三方库。

bogon:~ evan$ sudo easy_install pip

Searching for pip

Reading https://pypi.python.org/simple/pip/

Best match: pip 9.0.1

Downloading https://pypi.python.org/packages/11/b6/abcb525026a4be042b486df43905d6893fb04f05aac21c32c638e939e447/pip-9.0.1.tar.gz#md5=35f01da33009719497f01a4ba69d63c9

Processing pip-9.0.1.tar.gz

Writing /tmp/easy_install-ilu_ZT/pip-9.0.1/setup.cfg

Running pip-9.0.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-ilu_ZT/pip-9.0.1/egg-dist-tmp-u5uG4o

/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'python_requires'

warnings.warn(msg)

warning: no previously-included files found matching '.coveragerc'

warning: no previously-included files found matching '.mailmap'

warning: no previously-included files found matching '.travis.yml'

warning: no previously-included files found matching '.landscape.yml'

warning: no previously-included files found matching 'pip/_vendor/Makefile'

warning: no previously-included files found matching 'tox.ini'

warning: no previously-included files found matching 'dev-requirements.txt'

warning: no previously-included files found matching 'appveyor.yml'

no previously-included directories found matching '.github'

no previously-included directories found matching '.travis'

no previously-included directories found matching 'docs/_build'

no previously-included directories found matching 'contrib'

no previously-included directories found matching 'tasks'

no previously-included directories found matching 'tests'

creating /Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg

Extracting pip-9.0.1-py2.7.egg to /Library/Python/2.7/site-packages

Adding pip 9.0.1 to easy-install.pth file

Installing pip script to /usr/local/bin

Installing pip2.7 script to /usr/local/bin

Installing pip2 script to /usr/local/bin

Installed /Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg

Processing dependencies for pip

Finished processing dependencies for pip

或者也可以直接用easy_install下载第三方库。

bogon:~ evan$ sudo easy_install selenium

Password:

Searching for selenium

Reading https://pypi.python.org/simple/selenium/

Best match: selenium 3.5.0

Downloading https://pypi.python.org/packages/ac/d7/1928416439d066c60f26c87a8d1b78a8edd64c7d05a0aa917fa97a8ee02d/selenium-3.5.0.tar.gz#md5=986702fdd0e2aec6a4eda134678b8b3f

Processing selenium-3.5.0.tar.gz

Writing /tmp/easy_install-8JkREp/selenium-3.5.0/setup.cfg

Running selenium-3.5.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-8JkREp/selenium-3.5.0/egg-dist-tmp-TSB9ds

warning: no files found matching 'selenium/selenium.py'

warning: no files found matching 'LICENSE'

creating /Library/Python/2.7/site-packages/selenium-3.5.0-py2.7.egg

Extracting selenium-3.5.0-py2.7.egg to /Library/Python/2.7/site-packages

Adding selenium 3.5.0 to easy-install.pth file

Installed /Library/Python/2.7/site-packages/selenium-3.5.0-py2.7.egg

Processing dependencies for selenium

Finished processing dependencies for selenium

bogon:~ evan$

2. python3的第三方库安装：

bogon:~ evan$ which python3

/Library/Frameworks/Python.framework/Versions/3.6/bin/python3

bogon:~ evan$

bogon:~ evan$ which pip3

/usr/bin/which

/Library/Frameworks/Python.framework/Versions/3.6/bin/pip3

bogon:~ evan$ pip3 install pymysql

Collecting pymysql

Downloading PyMySQL-0.7.11-py2.py3-none-any.whl (78kB)

100% |████████████████████████████████| 81kB 42kB/s

Installing collected packages: pymysql

Successfully installed pymysql-0.7.11

bogon:~ evan$ pip3 -help

Usage:

pip <command> [options]

Commands:

install Install packages.

download Download packages.

uninstall Uninstall packages.

freeze Output installed packages in requirements format.

list List installed packages.

show Show information about installed packages.

check Verify installed packages have compatible dependencies.

search Search PyPI for packages.

wheel Build wheels from your requirements.

hash Compute hashes of package archives.

completion A helper command used for command completion.

help Show help for commands.

General Options:

-h, --help Show help.

--isolated Run pip in an isolated mode, ignoring

environment variables and user configuration.

-v, --verbose Give more output. Option is additive, and can be

used up to 3 times.

-V, --version Show version and exit.

-q, --quiet Give less output. Option is additive, and can be

used up to 3 times (corresponding to WARNING,

ERROR, and CRITICAL logging levels).

--log <path> Path to a verbose appending log.

--proxy <proxy> Specify a proxy in the form

[user:passwd@]proxy.server:port.

--retries <retries> Maximum number of retries each connection should

attempt (default 5 times).

--timeout <sec> Set the socket timeout (default 15 seconds).

--exists-action <action> Default action when a path already exists:

(s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.

--trusted-host <hostname> Mark this host as trusted, even though it does

not have valid or any HTTPS.

--cert <path> Path to alternate CA bundle.

--client-cert <path> Path to SSL client certificate, a single file

containing the private key and the certificate

in PEM format.

--cache-dir <dir> Store the cache data in <dir>.

--no-cache-dir Disable the cache.

--disable-pip-version-check

Don't periodically check PyPI to determine

whether a new version of pip is available for

download. Implied with --no-index.

3. 卸载第三方库

pip uninstall pymysql

pip3 uninstall pymysql