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What is Python Interpreter?

The program that reads and executes Python code, translating it into machine instructions at runtime.

The Python interpreter (CPython is the reference implementation) reads Python source code, compiles it to bytecode, and executes it on the Python Virtual Machine (PVM). This happens transparently each time you run a script.

Other implementations include PyPy (JIT-compiled for speed), Jython (Java platform), and IronPython (.NET platform).

Related Terms

Poetry
A modern Python dependency management and packaging tool that handles virtual environments, locking, and publishing.
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A concise syntax pattern for creating collections by transforming and filtering items from iterables.
Python Profiling
Measuring where Python code spends time and memory to identify performance bottlenecks and optimization opportunities.
Slots
A class mechanism that restricts attribute creation and reduces memory usage by using a fixed set of instance variables.
Python Iterator Protocol
The interface requiring __iter__() and __next__() methods, enabling objects to be used in for loops and other iteration contexts.
Python Property
A built-in decorator that lets you define methods that behave like attributes, enabling controlled access to instance data.
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