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Python 範例

本指南提供一些 Python 程式碼範例，可用 AWS SDK for Python (Boto) 來對 Amazon Polly 進行 API 呼叫。建議您設定 Python 並測試下節中提供的範例程式碼。如需額外的範例，請參閱應用範例。

設定 Python 並測試範例 (SDK)

若要測試 Python 範例程式碼，您需要 AWS SDK for Python (Boto)。如需相關指示，請參閱AWS SDK for Python (Boto3)。

測試 Python 程式碼範例

以下 Python 程式碼範例會執行下列動作：

將程式碼儲存至檔案 (example.py) 並執行。

"""Getting Started Example for Python 2.7+/3.3+"""
from boto3 import Session
from botocore.exceptions import BotoCoreError, ClientError
from contextlib import closing
import os
import sys
import subprocess
from tempfile import gettempdir

# Create a client using the credentials and region defined in the [adminuser]
# section of the AWS credentials file (~/.aws/credentials).
session = Session(profile_name="adminuser")
polly = session.client("polly")

try:
    # Request speech synthesis
    response = polly.synthesize_speech(Text="Hello world!", OutputFormat="mp3",
                                        VoiceId="Joanna")
except (BotoCoreError, ClientError) as error:
    # The service returned an error, exit gracefully
    print(error)
    sys.exit(-1)

# Access the audio stream from the response
if "AudioStream" in response:
    # Note: Closing the stream is important because the service throttles on the
    # number of parallel connections. Here we are using contextlib.closing to
    # ensure the close method of the stream object will be called automatically
    # at the end of the with statement's scope.
        with closing(response["AudioStream"]) as stream:
           output = os.path.join(gettempdir(), "speech.mp3")

           try:
            # Open a file for writing the output as a binary stream
                with open(output, "wb") as file:
                   file.write(stream.read())
           except IOError as error:
              # Could not write to file, exit gracefully
              print(error)
              sys.exit(-1)

else:
    # The response didn't contain audio data, exit gracefully
    print("Could not stream audio")
    sys.exit(-1)

# Play the audio using the platform's default player
if sys.platform == "win32":
    os.startfile(output)
else:
    # The following works on macOS and Linux. (Darwin = mac, xdg-open = linux).
    opener = "open" if sys.platform == "darwin" else "xdg-open"
    subprocess.call([opener, output])

如需其他範例包括範例應用程式的詳細資訊，請參閱應用範例。