pip 對 Python 第三方包的版本控制（qbit）

• PEP 440: https://www.python.org/dev/pe...
• 出處: https://pip.pypa.io/en/stable...

Operator	Description	Example
>	Any version greater than the specified version.	>3.1: any version greater than 3.1.
<	Any version less than the specified version.	<3.1: any version less than 3.1.
<=	Any version less than or equal to the specified version.	<=3.1: any version less than or equal to 3.1.
>=	Any version greater than or equal to the specified version.	>=3.1: version 3.1 and greater.
==	Exactly the specified version.	==3.1: only 3.1.
!=	Any version not equal to the specified version.	!=3.1: any version other than 3.1.
~=	Any compatible release. Compatible releases are releases that are within the same major or minor version, assuming the package author is using semantic versioning.	~=3.1: version 3.1 or later, but not version 4.0 or later. ~=3.1.2: version 3.1.2 or later, but not version 3.2.0 or later.
*	Can be used at the end of a version number to represent all,	==3.1.*: any version that starts with 3.1. Equivalent to ~=3.1.0.

本文出自 qbit snap