:Download objects using Python

Type

Interface name

Description

Simple download

client.get_object

• Streaming download, response body is of StreamBody type

• Do not directly support CRC-64

• Do not directly support the progress bar feature

• Do not support reconnection for failed connections during streaming read

client.get_object_to_file

• Download objects as local files

• Download by using a single connection

• Support CRC-64 (enabled by default)

• Support the progress bar feature

• Support reconnection for failed connections

Range download

client.get_object

• Download a specific range of data

Read-only class file

ReadOnlyFile

ReadOnlyFile.read

ReadOnlyFile.seek

ReadOnlyFile.close

• File-Like interface, providing read, seek, and close interfaces

• Provide the Seek capability

• Support single stream mode (default)

• Support the asynchronous prefetch mode to improve the read speed

• Specify the prefetch of blocks and the number of prefetch chunks

• Do not directly support CRC-64

• Do not directly support the progress bar feature

• Support reconnection for failed connections

Download using presigned URL

client.presign

• Generate a signed URL that allows HTTP GET requests and has a validity period to authorize users to download an object

File download manager

Downloader.download_file

• Download objects as local files by performing multipart download

• Specify the size of parts and number of parts that can be downloaded in parallel

• Support CRC-64 (enabled by default)

• Support the progress bar feature

• Support reconnection for failed connections

• Support breakpoint

• Write to a temporary file first, then rename it (configurable, enabled by default)