Python package dependency management: What is the difference between pymilvus=”^2.3.0” and pymilvus=2.3.*?

Python package dependency management: an in-depth understanding of pymilvus version number specification

In Python projects, precise package dependency management is crucial. This article will explain in detail the differences in the two ways of specifying version numbers of pymilvus = "^2.3.0" and pymilvus = 2.3.*

Many developers tend to confuse these two writing methods, and in fact there are significant differences in version scope limitations.

pymilvus = "^2.3.0" uses semantic version-controlled de-character notation ^ . This means that the installed pymilvus version must be greater than or equal to 2.3.0, but less than 2.4.0. It only allows the installation of the latest versions in the 2.3.x version series, such as 2.3.1, 2.3.2, etc., but does not include 2.4.0 and higher. While ensuring certain compatibility, this method can prioritize the use of newer versions, thereby obtaining the latest features and bug fixes.

pymilvus = 2.3.* means that the installed pymilvus version must belong to any version in the 2.3 series, such as 2.3.0, 2.3.1, 2.3.2, etc. It allows installing any 2.3.x version without limiting the latest version. This approach emphasizes compatibility and ensures that the program runs stably in the specified 2.3 version series.

Therefore, pymilvus = "^2.3.0" is more stringent than the version range of pymilvus = 2.3.* . If the latest version of pymilvus is 2.3.1, the former will install 2.3.1, while the latter may install 2.3.0 or 2.3.1, depending on the specific behavior of the package manager.

The key to choosing a version number lies in project requirements. If you need to use the latest stable version and get bug fixes and new features in time, then pymilvus = "^2.3.0" is more appropriate. If you need to ensure maximum compatibility and avoid potential problems with new versions, pymilvus = 2.3.* is a better choice.

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