linux_wiki:python

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linux_wiki:python [2018/07/06 07:03]
billdozor [Pip Commands] 		linux_wiki:python [2019/05/25 23:50]
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-====== Python ====== 
- 
-**General Information** 
- 
-Administration of Python environments.  
- 
-**Checklist** 
-  * Distro(s): Enterprise Linux 6/7 
- 
----- 
- 
-===== Python Versions ===== 
- 
-^  OS  ^  System Package  ^  EPEL  ^  Software Collections  ^ 
-|  CentOS 6.x  |  2.6.6  |  3.4  |  2.7, 3.3, 3.4  | 
-|  CentOS 7.x  |  2.7  |  3.4, 3.6  |  2.7, 3.3, 3.4, 3.5  | 
- 
-  * To avoid breaking system packages(ie yum uses python), let system packaged python versions stay maintained by the official repos. 
-  * Use EPEL/software collections along with something such as virtualenv to maintain development environments. 
- 
----- 
- 
-====== Python3 Install: EPEL ====== 
- 
-To install python 3.4 from the EPEL 
-  * 3.4<code bash>yum install python34</code> 
-  * 3.6<code bash>yum install python36</code> 
- 
----- 
- 
-====== Python3 Install: Software Collections ====== 
- 
-Software Collections allow for environments such as newer Python versions to be installed via repos and not conflict with the default system version. 
- 
-[[linux_wiki:repos#software_collections|See Software Collections Instructions]] 
- 
----- 
- 
-====== Pip ====== 
- 
-Pip is a Python package management tool to install modules. 
- 
-===== Install Pip ===== 
- 
-Install Pip into a Python environment 
-  * Python2<code bash>wget https://bootstrap.pypa.io/get-pip.py 
-python get-pip.py</code> 
-  * Python3<code bash>wget https://bootstrap.pypa.io/get-pip.py 
-python3.6 get-pip.py</code> 
- 
-\\ 
-Install devel packages that many pip builds rely upon 
-  * Python2<code bash>yum install gcc python-devel</code> 
-  * Python3.4<code bash>yum install gcc python34-devel</code> 
-  * Python3.6<code bash>yum install gcc python36-devel</code> 
-===== Pip Commands ===== 
- 
-**Python 2 vs Python 3 pip commands** 
-  * **Python 2**<code bash>pip <command></code> 
-  * **Python 3**<code bash>pip3 <command></code> 
- 
-\\ 
-List installed python modules 
-<code bash> 
-pip list 
-</code> 
- 
-\\ 
-Show details about a Python module 
-<code bash> 
-pip show virtualenv 
-</code> 
- 
-\\ 
-Search for a Python module 
-<code bash> 
-pip search "query" 
-</code> 
- 
-\\ 
-Install a Python module 
-<code bash> 
-pip install virtualenv 
-</code> 
- 
-\\ 
-Upgrade a Python module 
-<code bash> 
-pip install --upgrade scipy 
-</code> 
- 
-\\ 
-Upgrade pip 
-<code bash> 
-pip install --upgrade pip 
-</code> 
- 
-\\ 
-Uninstall 
-<code bash> 
-pip uninstall virtualenv 
-</code> 
- 
----- 
- 
-===== Pip Config ===== 
- 
-There is a global config file and per user config file locations. 
- 
-\\ 
-**Global pip config file** - example to format columns for all users<code bash>/etc/pip.conf 
-[list] 
-format=columns 
-</code> 
- 
-\\ 
-**User pip config file** - for additional config or to over ride the global 
-  * Create the pip config directory<code bash>mkdir ~/.config/pip/</code> 
-  * Create the pip.conf file and populate it<code bash>vim ~/.config/pip/pip.conf 
- 
-#your config here</code> 
- 
----- 
  
  • linux_wiki/python.txt
  • Last modified: 2019/05/25 23:50
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