Python is a popular programming language that can be used for various purposes, such as web development, data analysis, machine learning, and more. Python 2.7 is an older version of Python that is still widely used by many developers and projects. However, Python 2.7 has reached its end of life and will not receive any more updates or bug fixes. Therefore, it is recommended to upgrade to a newer version of Python, such as Python 3.9 or 3.10.
If you still need to use Python 2.7 for some reason, you can download it from the official Python website[^1^]. There are two options for installing Python 2.7 on Mac OS X:
Mac Installer disk image: This is a graphical installer that will guide you through the installation process. It contains code for PPC, i386, and x86-64 architectures and works on OS X 10.5 and later[^1^]. You can download it from here.
32-bit Mac Installer disk image: This is a graphical installer that only supports 32-bit mode and works on OS X 10.3 and later[^1^]. You can download it from here.
After downloading the installer, double-click on it to launch it and follow the instructions on the screen. You may need to enter your administrator password to complete the installation.
Once the installation is done, you can verify that Python 2.7 is installed correctly by opening a terminal window and typing:
You should see something like this:
If you see a different version of Python or an error message, you may need to adjust your PATH environment variable to point to the correct location of Python 2.7.
You can also use the Python Releases for macOS page[^2^] to find other versions of Python for Mac OS X, including the latest Python 3 releases.Now that you have Python 2.7 installed on your Mac, you may want to learn how to use it for various tasks. Python on a Mac is very similar to Python on any other Unix platform, but there are some additional features that are worth pointing out.
Using the Python IDE
One of the features that comes with Python 2.7 for Mac is the Python IDE, which is an integrated development environment that allows you to write, run, and debug Python code in a graphical user interface. The Python IDE can be launched from the Applications folder or from the terminal by typing:
python -m idlelib.idle
The Python IDE has a main window that shows the Python Shell, where you can interact with the Python interpreter and execute commands. You can also create and edit Python files in separate windows, and use the Run menu to run them as scripts. The Python IDE also has a debugger that lets you set breakpoints, step through code, and inspect variables.
Using the Package Manager
Another feature that comes with Python 2.7 for Mac is the Package Manager, which is a tool that helps you install and manage third-party Python modules and packages. The Package Manager can be launched from the Applications folder or from the terminal by typing:
python -m ensurepip --upgrade
The Package Manager uses pip, which is a standard tool for installing Python packages from the Python Package Index (PyPI). You can use pip to search, download, install, update, and uninstall packages by using commands like:
pip search package_name
pip install package_name
pip show package_name
pip uninstall package_name
You can also use pip to install packages from other sources, such as local files or git repositories. For more information on how to use pip, see the pip documentation. aa16f39245