Polly / Client / list_lexicons



Returns a list of pronunciation lexicons stored in an Amazon Web Services Region. For more information, see Managing Lexicons.

See also: AWS API Documentation

Request Syntax

response = client.list_lexicons(

NextToken (string) – An opaque pagination token returned from previous ListLexicons operation. If present, indicates where to continue the list of lexicons.

Return type:



Response Syntax

    'Lexicons': [
            'Name': 'string',
            'Attributes': {
                'Alphabet': 'string',
                'LanguageCode': 'arb'|'cmn-CN'|'cy-GB'|'da-DK'|'de-DE'|'en-AU'|'en-GB'|'en-GB-WLS'|'en-IN'|'en-US'|'es-ES'|'es-MX'|'es-US'|'fr-CA'|'fr-FR'|'is-IS'|'it-IT'|'ja-JP'|'hi-IN'|'ko-KR'|'nb-NO'|'nl-NL'|'pl-PL'|'pt-BR'|'pt-PT'|'ro-RO'|'ru-RU'|'sv-SE'|'tr-TR'|'en-NZ'|'en-ZA'|'ca-ES'|'de-AT'|'yue-CN'|'ar-AE'|'fi-FI'|'en-IE'|'nl-BE'|'fr-BE',
                'LastModified': datetime(2015, 1, 1),
                'LexiconArn': 'string',
                'LexemesCount': 123,
                'Size': 123
    'NextToken': 'string'

Response Structure

  • (dict) –

    • Lexicons (list) –

      A list of lexicon names and attributes.

      • (dict) –

        Describes the content of the lexicon.

        • Name (string) –

          Name of the lexicon.

        • Attributes (dict) –

          Provides lexicon metadata.

          • Alphabet (string) –

            Phonetic alphabet used in the lexicon. Valid values are ipa and x-sampa.

          • LanguageCode (string) –

            Language code that the lexicon applies to. A lexicon with a language code such as “en” would be applied to all English languages (en-GB, en-US, en-AUS, en-WLS, and so on.

          • LastModified (datetime) –

            Date lexicon was last modified (a timestamp value).

          • LexiconArn (string) –

            Amazon Resource Name (ARN) of the lexicon.

          • LexemesCount (integer) –

            Number of lexemes in the lexicon.

          • Size (integer) –

            Total size of the lexicon, in characters.

    • NextToken (string) –

      The pagination token to use in the next request to continue the listing of lexicons. NextToken is returned only if the response is truncated.


  • Polly.Client.exceptions.InvalidNextTokenException

  • Polly.Client.exceptions.ServiceFailureException


Returns a list of pronunciation lexicons stored in an AWS Region.

response = client.list_lexicons(


Expected Output:

    'Lexicons': [
            'Attributes': {
                'Alphabet': 'ipa',
                'LanguageCode': 'en-US',
                'LastModified': 1478542980.117,
                'LexemesCount': 1,
                'LexiconArn': 'arn:aws:polly:us-east-1:123456789012:lexicon/example',
                'Size': 503,
            'Name': 'example',
    'ResponseMetadata': {
        '...': '...',