Python 3.7.3 / 2.7.16

Python is a remarkably powerful dynamic programming language that is used in a wide variety of application domains. The language itself is a flexible powerhouse that can handle practically any problem domain. Build your own web server in three lines of code. Build flexible data-driven code using Python's powerful and dynamic introspection capabilities and advanced language features such as meta-classes, duck typing and decorators.

Python lets you write the code you need, quickly. And, thanks to a highly optimized byte compiler and support libraries, Python code runs more than fast enough for most applications.

Features of Python:

- Very clear, readable syntax.
- Strong introspection capabilities.
- Intuitive object orientation.
- Natural expression of procedural code.
- Full modularity, supporting hierarchical packages.
- Exception-based error handling.
- Very high level dynamic data types.
- Extensive standard libraries and third party modules for virtually every task.
- Extensions and modules easily written in C, C++ (or Java for Jython, or .NET languages for IronPython).
- Embeddable within applications as a scripting interface.

Changes in recent version (change history)

PEP 539, new C API for thread-local storage.
PEP 545, Python documentation translations.
New documentation translations: Japanese, French, and Korean..
PEP 552, Deterministic pyc files.
PEP 553, Built-in breakpoint().
PEP 557, Data Classes.
PEP 560, Core support for typing module and generic types.
PEP 562, Customization of access to module attributes.
PEP 563, Postponed evaluation of annotations.
PEP 564, Time functions with nanosecond resolution.
PEP 565, Improved DeprecationWarning handling.
PEP 567, Context Variables.
Avoiding the use of ASCII as a default text encoding (PEP 538, legacy C locale coercion and PEP 540, forced UTF-8 runtime mode).
The insertion-order preservation nature of dict objects is now an official part of the Python language spec.
Notable performance improvements in many areas.