python ^3.0
时间: 2023-10-26 12:36:52 浏览: 43
Python 3.0 is a major release of the Python programming language, released in December 2008. It introduced many new features and changes, including:
- Print function: The print statement was replaced with a print function that allows more flexibility in the output and the ability to print to a specified file.
- Unicode support: Python 3.0 fully supports Unicode, which allows for better handling of non-ASCII characters and internationalization.
- Division operator: The division operator (/) now returns a float result by default, while the double-slash operator (//) is used for integer division.
- Changes to syntax: Some changes were made to the syntax, including the removal of some old features and the addition of new ones, such as the "yield from" expression and the "nonlocal" statement.
- Library changes: Some modules were renamed or removed, and others were added or changed.
Python 3.0 is not backward compatible with previous versions of Python, which means that code written in earlier versions may need to be modified to work with Python 3.0. However, Python 2.x and Python 3.x can coexist on the same system, allowing for a gradual transition to the new version.
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