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default-layout	BarcodeReader License Methods - Dynamsoft Barcode Reader SDK Python Edition API Reference	This page shows BarcodeReader License Methods of Dynamsoft Barcode Reader SDK Python Edition.	init_license, init_license_from_server, init_license_from_license_content, output_license_to_string, license methods, BarcodeReader, api reference, python	true	/programming/python/api-reference/BarcodeReader/license-v9.0.0.html

Python API Reference - BarcodeReader License Methods

Method	Description
`init_license`	Reads product key and activates the SDK.
`get_idle_instances_count`	Gets available instances count when charging by concurrent instances count.
`init_license_from_server`	`Deprecated`
`init_license_from_license_content`	`Deprecated`
`output_license_to_string`	`Deprecated`
`init_dls_connection_parameters`	`Deprecated`
`init_license_from_dls`	`Deprecated`
`init_lts_connection_parameters`	`Deprecated`
`init_license_from_lts`	`Deprecated`

init_license

Reads product key and activates the SDK.

BarcodeReader.init_license(dbr_license)

Parameters

[in] dbr_license <str> : The license key.

Return Value

error <tuple> : error_code = error[0], error_message = error[1], if error_code != EnumErrorCode.DBR_OK, you can get the detailed error message by error_message.

get_idle_instances_count

Gets available instances count when charging by concurrent instances count.

BarcodeReader.get_idle_instances_count()

Return Value
count <int> : Returns available instances count.

0: There is no space for new instance
-1: The available count needs to be updated from server by calling initLicense.
N ( N > 0 ): N more instances can be created.