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However, don’t stress too much if you have more complicated dependencies with C/C++ extensions. You’ll increase the likelihood of PyInstaller’s defaults creating an executable if you only have pure Python dependencies. You’ll use the library interface if you create your own hook files.
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PyInstaller can be imported in your Python code and used as a library, but you’ll likely only use it as a CLI tool.
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Pip will install PyInstaller’s dependencies along with a new command: You can still use relative imports throughout the rest your application if that’s your preferred style. You can technically do anything you want in the entry-point script, but you should avoid using explicit relative imports. The entry-point script is a Python script. Often, this means creating a small script outside of your Python package that simply imports your package and runs main(). PyInstaller requires your application to conform to some minimal structure, namely that you have a CLI script to start your application. See the limitations section for more information. exe, Linux users get a regular executable, and macOS users get a. In addition, PyInstaller can create executables for Windows, Linux, or macOS. You can always refer to the excellent PyInstaller docs if you want more details.
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There are lots of interesting details about PyInstaller, but for now you’ll learn the basics of how it works and how to use it. PyInstaller performs this amazing feat by introspecting your Python code, detecting your dependencies, and then packaging them into a suitable format depending on your Operating System. Goodbye complicated installation instructions! Your users won’t even know they’re running a Python project because the Python Interpreter itself is bundled into your application. PyInstaller abstracts these details from the user by finding all your dependencies and bundling them together. As Raymond Hettinger often says in his excellent talks, “There has to be a better way.” This barrier to entry is way too high if your goal is to make an application available to as many users as possible. This has gotten much better in the last few years with the prevalence of wheels, but some dependencies still require C/C++ or even FORTRAN compilers! These problems explode if your user is lucky enough to get to the dependencies portion of the installation. Stop for a moment and consider if any of the above steps make any sense if you’re not a developer, let alone a Python developer.
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Download and install a specific version of Python.Think about what you typically go through when setting up a new machine for Python development. This roadblock stops users even before the installation guide delves into the complicated details of virtual environments, Python versions, and the myriad of potential dependencies. Often, the setup starts with opening a Terminal, which is a non-starter for a huge group of potential users. Setting up a Python project can be frustrating, especially for non-developers.
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To fully appreciate PyInstaller’s power, it’s useful to revisit some of the distribution problems PyInstaller helps you avoid.įree Bonus: 5 Thoughts On Python Mastery, a free course for Python developers that shows you the roadmap and the mindset you’ll need to take your Python skills to the next level. PyInstaller gives you the ability to create a folder or executable that users can immediately run without any extra installation.