Before You Start (SDK for Python)

This section describes the version updates, compatibility, and important notes about Object Storage Service (OBS) SDK for Python.

Version Updates and Compatibility

Table 1 describes the version updates and compatibility with earlier versions of OBS SDK for Python. For details about the version revision records, see ChangeLog.

**Table 1** Version updates and compatibility of OBS SDK for Python
Version	Update	Description	Compatible or Not
v3.23.12 (the latest version)	Resolved issues	Resolved the issue of inconsistent contentType when uploading a folder using putFile.	-
v3.23.9.1	New features Resolved issues	Supported the fragment expiration configurations in the action mentioned in Configuring Lifecycle Rules for a Bucket (SDK for Python). Resolved the issue where a read of closed file error is reported during an upload retry.	-
v3.23.5	New features Resolved issues	Added the function of user-defined headers for requests. Supported storage information collection based on storage class by calling the API for obtaining the bucket storage information. Resolved the issue where regular expression matching fails when ECS uses a proxy to obtain credentials for accessing OBS.	-
3.22.2	New features	Added APIs related to fusion buckets. Made compatibility changes for Python3 HTTPS parameters.	Yes
3.21.8	Code optimization	Added the code related to client-side encryption.	Yes

Important Notes

Make sure that you are familiar with basic OBS concepts, such as buckets, objects, access keys (AKs/SKs), and endpoints and domain names.
Some features are available only in some regions. If 405 HTTP status code is returned for a call of a certain feature API, check whether the region supports this feature.
The namespace is incompatible with earlier OBS versions (2.1.x). All modules are saved in the obs package.
API functions are compatible with earlier OBS versions (2.1.x).