Python Eggs A Python egg is a way of distributing Python packages. By default, packages are installed to the running Python installation's site-packages directory. Upgrading a Package You don't need to do anything special to upgrade a package Just install the new version, either by requesting a specific version, e.
EasyInstall easyinstall gives you a quick and painless way to install packages remotely by connecting to the cheeseshop or even other websites via HTTP. Download Python The first step is to download Python from python. Setting up Python 3. Follow these steps to check your build.
The following links will open the Microsoft store page for each distribution: From the distro's page, select 'Get' Complete initialization of your distro Now that your Linux distro is installed, you must initialize your new distro instance once, before it can be used.
If you are looking for common Python recipes and patterns, you can browse the ActiveState Python Cookbook. If you want to know whether a particular application, or a library with particular functionality, is available in Python there are a number of possible sources of information. There is also a search page for a number of sources of Python-related information.
Failing that, just Google for a phrase including the word ''python'' and you may well get the result you need. If all else fails, ask on the python newsgroup and there's a good chance someone will put you on the right track.
If you have a question, it's a good idea to try the FAQ , which answers the most commonly asked questions about Python. Copy all needed distributions to the installation directory, even if they are already present in a directory on sys. In older versions of EasyInstall, this was the default behavior, but now you must explicitly request it. By default, EasyInstall will no longer copy such distributions from other sys. Note that as of 0. You will see warning messages for any eggs that EasyInstall skips, before it falls back to an older version or attempts to download a fresh copy.
Eggs and archives found by way of --find-links are only downloaded if they are needed to meet a requirement specified on the command line; links to unneeded packages are ignored. If all requested packages can be found using links on the specified download pages, the Python Package Index will not be consulted unless you also specified the --upgrade or -U option.
Note: if you want to refer to a local HTML file containing links, you must use a file: URL, as filenames that do not refer to a directory, egg, or archive are ignored. Note that on the command line, you will probably have to surround the URL list with quotes, so that it is recognized as a single option value.
When used, --find-links is ignored. When a package is requested that is not locally available or linked from a --find-links download page, the package index will be searched for download pages for the needed package, and those download pages will be searched for links to download an egg or source distribution. Only find and download source distributions for the specified projects, unpacking them to subdirectories of the specified --build-directory.
EasyInstall will not actually build or install the requested projects or their dependencies; it will just find and extract them for you. See Editing and Viewing Source Packages above for more details. Set the directory used to build source packages. If a package is built from a source distribution or checkout, it will be extracted to a subdirectory of the specified directory.
If a file or directory of that name already exists in the given directory, a warning will be printed to the console, and the build will take place in a temporary directory instead. This option is most useful in combination with the --editable option, which forces EasyInstall to only find and extract but not build and install source distributions.
See Editing and Viewing Source Packages , above, for more information. Using -v or --verbose increases the detail level to include individual file-level operations, link analysis messages, and distutils messages from any setup scripts that get run. If you include the -v option more than once, the second and subsequent uses are passed down to any setup scripts, increasing the verbosity of their reporting as well. This option is passed down to any setup scripts run, so packages should not actually build either.
If you are installing from a source distribution, and are not using the --zip-ok option, this option controls the optimization level for compiling installed. It does not affect the compilation of modules contained in. As of 0. This is intended as a convenience for tools that wrap eggs in a platform-specific packaging system. Restrict downloading and spidering to hosts matching the specified glob patterns. Multiple patterns can be specified by separating them with commas. EasyInstall displays all blocked URLs, so that you can adjust your --allow-hosts setting if it is more strict than you intended.
Some sites may wish to define a restrictive default setting for this option in their configuration files , and then manually override the setting on the command line as needed.
Use the specified directory as a base for computing the default installation and script directories. Note that the --prefix option only sets the default installation and script directories, and does not override the ones set on the command line or in a configuration file. Normally, EasyInstall prefers to only install released versions of projects, not in-development ones, because such projects may not have a currently-valid version number.
So, it usually only installs them when their setup. However, if this option is used, then any in-development projects that were installed using the setup. Normally, this option is used only in conjunction with the --always-copy option to create a distributable snapshot of every egg needed to run an application. They want to isolate a set of packages to a specific python application, usually to minimize the possibility of version conflicts.
Historically, there have been many approaches to achieve custom installation. The following section lists only the easiest and most relevant approaches 1. Python provides a User scheme for installation, which means that all python distributions support an alternative install location that is specific to a user 3. The Default location for each OS is explained in the python documentation for the site.
This mode of installation can be turned on by specifying the --user option to setup. This approach serves the need to have a user-specific stash of packages. Prior to the User scheme, there was the Home scheme, which is still available, but requires more effort than the User scheme to get packages recognized. Please refer to the virtualenv documentation for more details. Custom package indexes and PyPI must follow the following rules for EasyInstall to be able to look up and download packages:.
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