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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.)
Feb 26, 2012 · 73. Python has a compiler! You just don't notice it because it runs automatically. You can tell it's there, though: look at the .pyc (or .pyo if you have the optimizer turned on) files that are generated for modules that you import. Also, it does not compile to the native machine's code.
Jul 11, 2015 · 11. I can understand the fact that Java needs both a compiler and an interpreter. It compiles source code to bytecode and then a virtual machine (on Windows, on Linux, on Android, etc.) translates that bytecode to machine code for the current architecture. But why does Python need both a compiler and an interpreter?
A lot of processes happen between pressing the run button on our IDEs and getting the output, and half of that process involves the working of compilers. 1. When we run a Python file (.py), the compiler starts reading the file. 2. The compiler reads the file and checks for errors. 3.
This suggests that *.pyc files are compiled python files similar to executable created after compilation of a C file, though I can't execute *.pyc file directly. When the python file (somefile.py) is executed directly ( ./somefile.py or python somefile.py ) no .pyc file is created and the code is executed as is indicating interpreted behavior.
Jul 1, 2024 · Despite the compilation step to bytecode, Python is termed an interpreted language for several reasons: 1. Implicit Compilation: The bytecode compilation is an internal process that happens automatically. As a programmer, you interact with Python as an interpreted language, writing and executing code directly without a separate compilation step. 2.
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The “py_compile” module can be used to compile individual Python files. To compile a Python file using the “py_compile” module, import the module and use the “compile” function: import py_compile. py_compile. compile (‘filename.py’) The compiled bytecode will be saved in a file with a “.pyc” extension.
