How to Install Python Modules for a Specific Version Using Pip?

Installing Modules for a Specific Python Version Using pip

In certain scenarios, you may have multiple Python versions installed on your system. This can lead to confusion when using pip to install packages, as it may default to installing for the wrong version. This article addresses the issue of installing modules for a specific Python version using pip.

Background

Ubuntu 10.04, for instance, comes with Python 2.6 pre-installed. If you subsequently install Python 2.7, using pip to install packages (e.g., BeautifulSoup4) by default installs them for Python 2.6.

Problem

When you import BeautifulSoup4 in Python 2.7 using import bs4, you'll encounter the error "No module named bs4." This is because the module is installed for Python 2.6 and not for Python 2.7.

Solution

To install packages for a specific Python version, use the following method:

python2.7 -m pip install <package></package>

In this command:

• python2.7 specifies the Python version you want to install the package for. Adjust this to the desired version.
• -m pip indicates that we want to execute the pip command with the Python interpreter.
• is the package you want to install (e.g., "beautifulsoup4").

Example

To install BeautifulSoup4 for Python 2.7:

python2.7 -m pip install beautifulsoup4

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