How To Install Python Packages Without Pip
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Near Python packages are now designed to be compatible with Python's pip package manager. Merely if you have a package that is not compatible with pip, yous'll demand manually install Python packages. Here'southward how.
Python Installation Checklist
Before installing any package, you should always ensure that a Python installation containing the necessary files needed for installing packages is in place by following the Installation Requirements .
Packages That Cannot be Installed with Pip
Preliminary Steps to accept:
- Download the package and extract information technology into a local directory.
- If the bundle includes its own ready of installation instructions, they should be followed. Otherwise, the nearly common method for manually installing a package is to implement setup.py .
Installing Python Packages with Setup.py
To install a package that includes a setup.py file, open a command or final 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. However, some requirements are optional.
Examples
- Ensure that an up-to-date version of setuptools is installed:
python -1000 pip install --upgrade setuptools - Include install_requires keyword arguments in setup.py. install_requires is a setuptools setup.py keyword used to specify minimum package requirements. For example:
install_requires=[' <packagename> '], # Optional keyword
Complete package build requirements for a setup.py based installation are outlined past PyPA (Python Packaging Authority) in 'Sample Projection'.
Sample Project
Sample Project is a template package with a setup.py file for manual installation of a package. The file is annotated with comments for customizing the script, and for the overall parcel build environment. [https://github.com/pypa/sampleproject ]
Sample Project is based on the setuptools package: "A setuptools based setup module." https://github.com/pypa/sampleproject/blob/primary/setup.py ]
setup.py is the build script for packages built with setuptools.
Setup.py Instance (Not-Annotated)
import setuptools with open("README.md", "r") every bit fh: long_description = fh.read() setuptools.setup( name="<template-package-username>", # Replace with your username version="1.0.0", author=" <authorname> ", author_email=" <authorname@templatepackage.com> ", description=" <Template Setup.py package> ", long_description=long_description, long_description_content_type="text/markdown", url=" <https://github.com/authorname/templatepackage> ", packages=setuptools.find_packages(), classifiers=[ "Programming Language :: Python :: iii", "License :: OSI Canonical :: MIT License", "Operating System :: OS Independent", ], python_requires='>=3.6', )
How ActiveState Can Help
ActiveState provides a unified cross-platform toolchain for mod Python package management. It tin replace the complex and hard-to-maintain in-business firm solutions built from multiple package managers, environment management tools and other solutions.
By adopting the ActiveState Platform, developers can:
- Automated building of packages from source, including link C libraries without the need for a local build environment.
- Automated resolution of dependencies (or suggestions on how to manually resolve conflicts), ensuring that your surroundings always contains a set of known adept dependencies that work together.
- Central management of a unmarried source of truth for your surround that can be deployed with a single command to all development and CI/CD environments, ensuring consistent reproducibility.
- Automated installation of virtual Python environments on Windows or Linux without requiring prior setup.
- The ability to detect, fix and automatically rebuild vulnerable environments, thereby enhancing security and dramatically reducing time and try involved in resolving CVEs.
- Visually seeing which versions of which packages are approved for use, thereby taking the guesswork out of development.
Those that prefer to piece of work from the control line can leverage the ActiveState Platform's CLI, the State Tool, which acts as a universal bundle manager for Python, and provides access to well-nigh of the features offered past the Platform.
Modern Python Package Management
ActiveState provides a unified cross-platform toolchain for modern Python parcel management. It can replace the complex and hard-to-maintain in-house solutions built from multiple package managers, environment management tools and other solutions.
By adopting the ActiveState Platform, developers can:
- Increase the security of Python environments
- Improve the transparency of your open up source supply concatenation
- Dramatically reduce package and environs management overhead
- Eliminate dependency hell
- Reduce "works on my machine" issues
Ultimately, developers that are willing to adopt the ActiveState Platform will spend less time wrestling with tooling and more than time focused on doing what they exercise best: coding.
To try the ActiveState Platform for yourself, sign-upwards for a free business relationship.
Recommended Reads
How to Install Python Packages using a Script
How to Update All Python Packages
Source: https://www.activestate.com/resources/quick-reads/how-to-manually-install-python-packages/
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