异常处理
更新时间：2019-06-14
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。