Installing Python Packages with Setup.py. To install a package that includes a setup.py file, open a command or terminal window and: cd into the root directory where setup.py is located Enter: python setup.py install; Setup.py Build Environment. Packages installed with setup.py have build requirements that developers must adhere to. Python library installation can be done in four ways listed below. Ideally only one of the ways should have worked! And sometimes even all these four steps also don’t work!! Simply because, python library install is a mess!! Try installing keras or tensorflow library, you will understand what I am saying 🙂. Jul 17, 2021 How to install FLPFile python library. Ask Question Asked 21 days ago. Active 21 days ago. Viewed 12 times 0 hello i am trying. Requests is an elegant and simple HTTP library for Python, built for human beings. One of the most famous libraries for python used by developers al over the world. This article revolves around how one can install requests library of python in Windows/ Linux/ macOS, etc. Just install EPEL and install the python3-gobject package: yum install python34-gobject Centos 7 python34 how to install the gi library - rtt - IT Resource Menu.

2. Python library installation : step by step guide

Step 1 : verify that you can access Python in command line

Open a terminal : use the search function of Windows,

then type command, then click on prompt command. A terminal window opens.

Then type python in minuscule.

If the following shows, then you're good. If not, you need to review the installation of Python.

Step 2 : localize the package you need with PyPi

Python has a kind of app store for the different libaries available. It is called PyPi. Just go 1st to PyPi to get the exact name of the package you wish to install.

For example, you want to install numpy. Go to pypi.org and type numpy in the search box.

It is available, you can download it thanks to the install tool given by Python, named pip.

Step 3 : install the library with pip

Python has a tool to download and install the library from PyPi.

If you are still in the python prompt, exit by typing exit()

To install a new library that you just need to type the following command :

python -m pip install namelibrary

Replace namelibrary by what you want to install, in our case, numpy

python -m pip install numpy

Step 4 : enjoy your new library

The new library is now available.

Note that it can in some cases be more complicated due to some dependencies in between libraries although pip is able to manage some and install other packages that may be needed by the library you wish to use, but for the most common ones it should be sufficient.

Question or problem about Python programming:

I’m trying to install python3 on RHEL using the following steps:

Which returned No matches found for: python3

Followed by:

None of the search results contained python3. What should I try next?

How to solve the problem:

Solution 1:

It is easy to install it manually:

1. Download (there may be newer releases on Python.org):

2. Unzip

3. Prepare compilation

4. Build

5. Install

   OR if you don’t want to overwrite the python executable (safer, at least on some distros yum needs python to be 2.x, such as for RHEL6) – you can install python3.* as a concurrent instance to the system default with an altinstall:

Now if you want an alternative installation directory, you can pass --prefix to the configurecommand.

Example: for ‘installing’ Python in /opt/local, just add --prefix=/opt/local.

After the make install step: In order to use your new Python installation, it could be, that you still have to add the [prefix]/bin to the $PATH and [prefix]/lib to the $LD_LIBRARY_PATH (depending of the --prefix you passed)

Solution 2:

Installing from RPM is generally better, because:

• you can install and uninstall (properly) python3.
• the installation time is way faster. If you work in a cloud environment with multiple VMs, compiling python3 on each VMs is not acceptable.

Solution 1: Red Hat & EPEL repositories

Red Hat has added through the EPEL repository:

• Python 3.4 for CentOS 6
• Python 3.6 for CentOS 7

[EPEL] How to install Python 3.4 on CentOS 6

You can create your virtualenv using pyvenv:

[EPEL] How to install Python 3.6 on CentOS 7

With CentOS7, pip3.6 is provided as a package 🙂

You can create your virtualenv using pyvenv:

If you use the pyvenv script, you’ll get a WARNING:

Solution 2: IUS Community repositories

The IUS Community provides some up-to-date packages for RHEL & CentOS. The guys behind are from Rackspace, so I think that they are quite trustworthy…

Check the right repo for you here:

[IUS] How to install Python 3.6 on CentOS 6

You can create your virtualenv using pyvenv:

[IUS] How to install Python 3.6 on CentOS 7

You can create your virtualenv using pyvenv:

Install Python Library From Github

Solution 3:

In addition to gecco’s answer I would change step 3 from:

to:

Then after installation you could also:

It is to ensure that installation will not conflict with python installed with yum.

See explanation I have found on Internet:

Solution 4:

Along with Python 2.7 and 3.3, Red Hat Software Collections now includes Python 3.4 – all work on both RHEL 6 and 7.

RHSCL 2.0 docs are at https://access.redhat.com/documentation/en-US/Red_Hat_Software_Collections/

Plus lot of articles at developerblog.redhat.com.

edit

Follow these instructions to install Python 3.4 on RHEL 6/7 or CentOS 6/7:

Solution 5:

Install Python Library Ubuntu

Use the SCL repos.

Install Python Library Mac

(This last command will have to be run each time you want to use python27 rather than the system default.)

Hope this helps!