The variable can be set to a list of paths that will be added to the beginning of sys. I would strongly recommend a —you're a programmer, you should know how to use your machine—but b works too. If the extension needs a library eg. The installation program displays late-breaking notes about Python, licensing information click Agree when asked about the licensing information , and, finally, a destination dialog box. Once the interpreter is started, you type Python code at the prompt. Installing a new module distribution is as simple as python setup. If you wish, you are invited to install the most recent version of Python from the Python website.
Option-dragging allows you to change these for one invocation, or use its Preferences menu to change things globally. In either case, the lib or lib. The fastest way is to install the Xcode Command Line Tools by running xcode-select --install. The basic idea is that you supply a base directory for the installation, and the install command picks a set of directories called an installation scheme under this base directory in which to install files. You can find out the complete list of options for any command using the --help option, e. You can use the command pip freeze to see all installed software within a virtual environment. A Setup file, if present, is parsed in order to get a list of extensions to build.
They maintain a variety of tools, documentation, and issue trackers on both and. The converted files have to reside in the same directories as the normal libraries. After the installation is completed, you see an Install Succeeded dialog box. To stop using a virtual environment, either close the Terminal window or enter deactivate:. A slightly less convenient way is to edit the site. This tells you more about how to overcome this particular issue. You can find a good program for this task at.
Additionally, the distribution will contain a setup script setup. While direct use of distutils is being phased out, it still laid the foundation for the current packaging and distribution infrastructure, and it not only remains part of the standard library, but its name lives on in other ways such as the name of the mailing list used to coordinate Python packaging standards development. If you try it, you may see this. The --home option defines the installation base directory. How do I run the older 2. How do I run Python 3? Even if you have a version of Python 3, we want to be on the most recent release, which is 3.
Information on PyObjC is available from. If you're in a learning mode, here are some good books: 1. This is almost as easy as customizing the script installation directory —you just have to remember that there are two types of modules to worry about, Python and extension modules, which can conveniently be both controlled by one option: python setup. Other editors include Gvim and Aquamacs. This might be necessary to support your own programming, or to support an application that you want to use and that happens to be written in Python. Each line in a Setup describes a single module. The contents of this dialog box will change as the installation process proceeds so that you know what part of Python the installer is working with.
. There is a boatload of friendly information about Python. That is, any option to any command can be stored in one of two or three depending on your platform configuration files, which will be consulted before the command-line is parsed. This section discusses how to override the usual Distutils behaviour. Packages and documentation are available from. Thus, you can put these options into your Distutils config file see section : python setup.
Be patient: The disk image requires several minutes to download. Anyway, you almost certainly want to either a get pip set up and just use that from now on, or b use and hope you never need a package he hasn't built or a newer version of one he has. Or you might wish to try out a module before making it a standard part of your local Python installation. These are Distutils configuration variables, which bear a strong resemblance to environment variables. For a guide to creating and sharing your own Python projects, refer to the.
Absolute beginner with no experience programming a computer. Next, the archive will unpack into a similarly-named directory: foo-1. I'd suggest creating a virtualenv for every project and enjoying clean isolation while easily juggling packages. For a Python interpreter that was built with Cygwin, everything should work without any of these following steps. The Distutils install command is designed to make installing module distributions to an alternate location simple and painless. You can also download the full version of from the Mac App Store, or the minimal but unofficial package.
For example, you can work on a project which requires Django 1. PythonLauncher has various preferences to control how your script is launched. This is particularly helpful when the build and install will be done by different users—for example, you might want to build a module distribution and hand it off to a system administrator for installation or do it yourself, with super-user privileges. The installation base is defined by the --prefix option; the --exec-prefix option is not supported under Windows, which means that pure Python modules and extension modules are installed into the same location. Use pythonw instead of python to start such scripts. Extensions most likely to not work are those that use C++ or depend on Microsoft Visual C extensions.
See for installers for the latest 2. Some of the solutions for installing that are not yet available as pre-built wheel files may also help with obtaining other binary extensions without needing to build them locally. Best case: trivial installation In the best case, someone will have prepared a special version of the module distribution you want to install that is targeted specifically at your platform and is installed just like any other software on your platform. Where can I get Python 3. And if it is used as the setup. Usually this will work well, but in complicated situations this might be inappropriate.