python except raise
时间: 2023-09-14 10:07:09 浏览: 98
引发异常-应用时间序列分析 王燕编著 第三版
The "except" keyword is used in Python for exception handling. It is used to catch and handle errors that occur during the execution of a program. The "raise" keyword is used to raise an exception explicitly. When an exception is raised, the program stops the current execution and returns the error message to the user.
Here's an example of how to use "except" and "raise" in Python:
try:
# some code that may raise an exception
except Exception as e:
# handle the exception
raise Exception("An error occurred: " + str(e))
In this example, the "try" block contains the code that may raise an exception. If an exception is raised, the "except" block is executed, which handles the exception. In this case, we're raising a new exception with a custom error message using the "raise" keyword. The new exception is then returned to the user with the error message provided.
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