Thus, if you install EasyInstall for both Python 3. You can use the --allow-hosts -H option to restrict what domains EasyInstall will look for links and downloads on. You can also use wildcards, for example to restrict downloading to hosts in your own intranet. See the section below on Command-Line Options for more details on the --allow-hosts option.
By default, there are no host restrictions in effect, but you can change this default by editing the appropriate configuration files and adding:. The above example would then allow downloads only from hosts in the python. For example:. This will tell EasyInstall to put zipped eggs or source packages for SomePackage and all its dependencies into somedir , without creating any scripts or.
You can then copy the contents of somedir to the target machine. You can also build the eggs from local development packages that were installed with the setup. You can use EasyInstall to build eggs for a project. By placing them in a directory that is published to the web, you can then make the eggs available for download, either in an intranet or to the internet at large. If someone distributes a package in the form of a single. So, something like this:. In addition to local directories and the Python Package Index, EasyInstall can find download links on most any web page whose URL is given to the -f --find-links option.
In the simplest case, you can simply have a web page with links to eggs or Python source packages, even an automatically generated directory listing such as the Apache web server provides.
If you are setting up an intranet site for package downloads, you may want to configure the target machines to use your download site by default, adding something like this to their configuration files :. As you can see, you can list multiple URLs separated by whitespace, continuing on multiple lines if necessary as long as the subsequent lines are indented. If you are more ambitious, you can also create an entirely custom package index or PyPI mirror.
Teams maintaining a private repository of packages may already have defined access credentials for uploading packages according to the distutils documentation. Refer to the distutils documentation for Python 2. EasyInstall respects standard distutils Configuration Files , so you can use them to configure build options for packages that it installs from source.
For example, if you are on Windows using the MinGW compiler, you can configure the default compiler by putting something like this:. In fact, since this is just normal distutils configuration, it will affect any builds using that config file, not just ones done by EasyInstall. For example, if you add those lines to distutils. See Configuration Files below for a list of the standard configuration file locations, and links to more documentation on using distutils configuration files.
If you want to be able to examine these files, you can use the --editable option to EasyInstall, and EasyInstall will look for a source distribution or Subversion URL for the package, then download and extract it or check it out as a subdirectory of the --build-directory you specify.
If you then wish to install the package after editing or configuring it, you can do so by rerunning EasyInstall with that directory as the target. Note that using --editable stops EasyInstall from actually building or installing the package; it just finds, obtains, and possibly unpacks it for you. This allows you to make changes to the package if necessary, and to either install it in development mode using setup.
In order to use --editable -e for short , you must also supply a --build-directory -b for short. The project will be placed in a subdirectory of the build directory. The subdirectory will have the same name as the project itself, but in all-lowercase.
If a file or directory of that name already exists, EasyInstall will print an error message and exit. Also, when using --editable , you cannot use URLs or filenames as arguments. You must specify project names and optional version requirements so that EasyInstall knows what directory name s to create. If you need to force EasyInstall to use a particular URL or filename, you should specify it as a --find-links item -f for short , and then also specify the project name, e.
NOTE: As of 0. As of version 0. Instead, eggs are automatically shifted to the front of sys. So, if you are using version 0. As a result, if you are using EasyInstall to upgrade an existing package, or to install a package with the same name as an existing package, EasyInstall will warn you of the conflict.
This is an improvement over setup. It will display a list of all of the existing files and directories that would need to be deleted for the new package to be able to function correctly. To proceed, you must manually delete these conflicting files and directories and re-run EasyInstall.
EasyInstall tries to install packages in zipped form, if it can. Sponsors Visionary sponsors help to host Python downloads. Licenses All Python releases are Open Source. Sources For most Unix systems, you must download and compile the source code.
Alternative Implementations This site hosts the "traditional" implementation of Python nicknamed CPython. Release Schedules Python 3. Release files for currently supported releases are signed by the following: Pablo Galindo Salgado 3. To verify the authenticity of the download, grab both files and then run this command: gpg --verify Python These instructions are geared to GnuPG and Unix command-line users.
Other Useful Items Looking for 3rd party Python modules? The Package Index has many of them. You can also use the following command to install Homebrew by copy and pasting it onto your terminal. To close Python shell, you can type in exit.
The hotkeys to close it is to press Ctrl and D simultaneously. Note that Command and D splits your Python shell view. Python 3 comes with its own package manager pip3. You can check out Python Package Index to look for packages that you need. The easier way is to download multiple versions from Python official website and run Python command with a version appeneded such as python3.
If you have previous versions of Python installed, you can run the following commands to check what versions you have and switch the version you need.
Good luck! Install Python on Windows There are three methods you can choose from on Windows. To use this method: Pick the newest version and install it With the official installer You can download a Python installer from the official Python download website too. Homebrew First and foremost, I recommend looking into Homebrew. Once you are up and running with homebrew, installing Python on MacOS is as easy as: Official installer Alternatively, you can download an installer from the Python download website.
Install Python on Linux There are several ways to install Python on Linux, that is, if you need to install it at all! Step 1 — Launch Visual Studio Code and click on the Extensions button which is highlighted on the screen below. Step 2 — On extension windows as shown below search for an extension named python in the search text box. Here already Python extension is shown under the popular tab look like it is very popular in extensions in visual studio code.
Select extension Python. Step 3 — On selecting extension Python below screen with details of Python extension will be displayed. In that detailed window click on the Install button to add Python support to visual studio code. In our next article, we will look at basic programming concepts in the Python programming language.
References — Microsoft Visual Studio Code. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Table of Contents. Related Posts.
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