音视频处理MCT

    异常处理

    系统异常

    Media异常提示有如下三种方式:

    异常方法 说明
    BceHttpClientError 重试时抛出的异常
    --last_error 最后一次重试时抛出的异常
    ----BceClientError Media客户端产生的异常
    ----BceInvalidArgumentError 传递参数产生的异常
    ----BceServerError Media服务器产生的异常

    用户可以使用try获取某个事件所产生的异常:

    from baidubce.exception import BceHttpClientError
    from baidubce.exception import BceServerError
    from baidubce.exception import BceClientError
    try:
        watermark_id = "non_exist"
        client.delete_watermark(watermark_id)
    except BceHttpClientError as e:
        print "Cannot delete the watermark: ", e.message

    返回为:

    Cannot delete the watermark:  Unable to execute HTTP request. Retried 0 times. A
    ll trace backs:
    >>>>Traceback (most recent call last):
    >>>>  File "C:\tools\Python27\lib\site-packages\baidubce\http\bce_http_client.py
    ", line 183, in send_request
    >>>>    if handler_function(http_response, response):
    >>>>  File "C:\tools\Python27\lib\site-packages\baidubce\http\handler.py", line
    71, in parse_error
    >>>>    raise bse
    >>>>BceServerError: watermark: non_exist does not exist
    
    也可以用这种方式直接获取原始错误信息:
    print "Cannot delete the watermark: ", e.last_error.message
    得到:
    Cannot delete the watermark: watermark: non_exist does not exist

    参数异常

    Media Python SDK的每个调用都有一些类型固定不可以为空的参数,若该参数传入为空值则返回BceClientError,若该参数传入类型错误则返回TypeError。

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