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They are imported
- The reason some files get compiled automatically is because they are imported; for instance, if you use import mylib.py, Python will compile mylib.py so that future import statements run a little faster. If you later change mylib.py, then it will get re-compiled next time it is imported (Python uses the file date to see that this happens.)
stackoverflow.com/questions/471191/why-compile-python-code
The reason some files get compiled automatically is because they are imported; for instance, if you use import mylib.py, Python will compile mylib.py so that future import statements run a little faster.
Jan 16, 2013 · The reason for why these .pyc /.pyo files aren't compiled at runtime during the first application startup as you expected is the following. The Python files are installed in a system-wide directory, available for all users on the system.
May 20, 2024 · Understanding the differences between these two types of files is essential for efficient Python programming and debugging. '.py' files contain human-readable source code written by developers, while '.pyc' files are compiled bytecode generated by the Python interpreter to speed up module loading.
Mar 20, 2022 · Files with .pyc extension are the result of compiling files with .py extension. A .pyc file for a given Python module gets automatically created when that module is imported. Note: as a Python developer you will only make code changes to .py files.
There are several methods to compile Python code. To create executable files, you can use tools like PyInstaller, cx_Freeze, or py2exe. Additionally, you can compile Python modules using the built-in compile() function.
Feb 10, 2014 · You can't just add somebody else's code, compiled or not, without asking the person/company or even pay fees. In Python, these built modules you talk about are Python Extensions. They are usually there to improve performance or access low-level functionality which is not in Python.
2 days ago · The py_compile module provides a function to generate a byte-code file from a source file, and another function used when the module source file is invoked as a script.
