Note: You are highly encouraged to work with virtual environments to isolate Python downloads, modules, and applications you are working with. This shall not be confused with operating-system packages, which are [technically] actual applications i, Various - Py Py Love (CD).
However, it must be noted that Python distributions are indeed called packages as well. Although anything from a single file to one with hundreds scattered across various packages can be considered an application in Python, in most realistic scenarios, an application will consist of multiple modules and a certain amount of external imports from libraries.
There have been several different tools and libraries used for creating Python distributions. In order to deal with the tasks of distribution, Python distribution utilities toolset distutils was created. Package managing tools such as pip use this repository in order to host, find and install them. Let"s begin with creating a simple, general Python flask application [structure] which we then can use to package.
We aim to create an example that resembles most real-world projects. Therefore, it will be best to imagine a scenario with modularised components. Having created an exemplary application structure of a web site that uses flask, we can continue with taking the first step into preparing the distribution.
In order to package our application well, we need to make some additions to our folder structure. If you need to ship extra directories e.
As we have finalized creation of our application followed by making necessary amendments to the file structure to prepare it for a flawless distribution build, we can begin with going through the packaging operations.
This command will go through your setup, print out the operations being performed and generate a tar archive inside the newly created dist directory, similar to:.
Note: Since we did not populate all the sub-folders i. From now on, your application can be installed and used by others using the setup. If this installation is for development and the requirements are also to be installed, run the following:, Various - Py Py Love (CD). Edit the setup. We can use the built-in function map to apply a function to each item in an iterable like a list or dictionary and return a new iterator for retrieving the results.
In this tutorial, we'll review three different ways of working with map : with a lambda function, with a user-defined function, and finally with a built-in function using multiple iterable arguments.
Python 3's subprocess module can be used to run external programs and read their outputs in your Python code. We'll review its different uses Various - Py Py Love (CD) main keyword arguments. Python 3 includes the pathlib module for manipulating file system paths agnostically whatever the operating system.
In this tutorial, we'll go over some of the ways to use the pathlib module to represent and manipulate file system paths. Django is a full-featured Python web framework for developing dynamic websites and applications.
Using Django, you can quickly create Python web applications and rely on the framework to do a good deal of the heavy lifting. In this guide, you will get Django up and running on an Ubuntu After installation, you will start a new project to use as the basis for your site.
Twitter Facebook Hacker News. DigitalOcean home. Community Control Panel. Hub for Good Supporting each other to make an impact Write for DigitalOcean You get paid, we donate to tech non-profits. How can I specify which I want to use? Various - Py Py Love (CD) Basharat Bilal Basharat 2, 4 4 gold badges 18 18 silver badges 19 19 bronze badges.
Good hints for asking questions is to explain what you have tried, and in what way that failed. So: What did you try, and in what way did that not work? Note, I couldn't find any previous questions about this on Windows, so I changed the title to reflect that. Related: Official multiple python versions on the same machine? If you want to run 3. Active Oldest Votes. Piotr Dobrogost When you're in windows, navigate to the folder that contains the python version you want to create a shortcut for, then right click and create shortcut.
You can then rename it. Sorry to dig up a long dead post, but how will you make the shortcut work without requiring the. If a shortcut doesn't work, you can do as F. J said, and simply copy and rename. Failing that, you can make a symbolic link, using ''mklink'' on the command line. Wouldn't the best way be to create a bat file called python25 and python26 and make those call the appropriate version? Then all you would need to do is put those 2 bat files alongside their binaries. Adding two more solutions to the problem: Use pylauncher if you have Python 3.
Piotr Dobrogost Piotr Dobrogost Do you know why the launcher still isn't Various - Py Py Love (CD) distributed with Python for Windows or why there's still only Vinay Sajip's prototype implementation? Pylauncher is being distributed with Python starting from version 3. Also I think Vinay Sajip's implementation is the implementation not merely a prototype. Thank you for the clarification. IMHO pylauncher should be distributed as part of the latest Python 2 version too because people using that version are more likely to the ones wanting to install multiple versions and be more likely to do so if they were aware of its functionality and availability.
StackOverflow should allow multiple upvotes, your answer deserves infinite upvotes! Seriously where have you been bro! Very good suggestions. I used the second virtualenv one. This is on Windows 10 if that makes a difference.
Other than that, works like a charm, thanks. This is the answer I'm looking for. I run Windows 10 with Python 2. I think environment variables must be set before you use this. Inuka: No environment variables need to be set.
The Python installer sets the associations with the. This way, also the PATH variable need not to be modified. Thanks a lot for your answer mate. From this way we can invoke the pip as well. I think this the most simple and no fuss solution. Christopher Hackett Christopher Hackett 5, 1 1 gold badge 25 25 silver badges 38 38 bronze badges. Clever idea. Hardlinks only work on the same drive, however. Use on XP requires use of a different driver. Sounds like it was turned off at some stage before general release.
I think, more or less this is the practical solution for the question. By the way, python command would be confusing to OS. Great answer! Mehran Jalili Mehran Jalili 68 3 3 silver badges 15 15 bronze badges. This should be the Accepted Answer! Thanks a ton! This is Various - Py Py Love (CD) the best answer, as it requires no renaming of files and third party IDEs will detect both as normal! Is it possible to incorporate this into a cross-platform command-line script which has at the top:!
So you can just install it. Then you call the Python version you want. Lennart Regebro Lennart Regebro k 37 37 gold badges silver badges bronze badges.
Bilal Basharat: Windows is a multi-tasking OS if you want to run two things at the same time, you just start both, so I don't understand your question.
Bilal Basharat: I already answered this. It is not "temporarily activated". You ran Python 2. And you run Python 2. That is how you run both at the same time. Xin Lv Xin Lv 1 1 silver badge 2 2 bronze badges. Here's a quick hack: Go to the directory of the version of python you want to run Right click on python. David Greydanus David Greydanus 2, 1 1 gold badge 20 20 silver badges 39 39 bronze badges. Just have to use copy instead of cp. Also when running this command you have to be somewhere on the path and both python installations e.
Using a batch file to switch, easy and efficient on windows 7.
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