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Chapter 6: Problem 22

What type of exception does a program raise when it uses the float function to convert a non-numeric string to a number?

Short Answer

Expert verified
Answer: ValueError

Step by step solution

01

Understand exceptions in Python

Exceptions are events that occur during the execution of a program that disrupt its normal flow. In Python, exceptions are triggered when an error or an exceptional situation occurs, and they are handled using try-except blocks.
02

Analyze the behavior of the float function

The float() function in Python is used to convert a number or a string to a floating point number. If the input is a non-numeric string, the function will raise an exception.
03

Identify the type of exception raised

When float() function attempts to convert a non-numeric string to a number, Python raises a ValueError exception. This indicates that the operation has received an inappropriate argument value that it cannot process. Example: ```python try: float("non-numeric string") except ValueError as ve: print("Exception:", ve) ``` Output: ``` Exception: could not convert string to float: 'non-numeric string' ```

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Most popular questions from this chapter

What is the purpose of closing a file?

What is an output file?

If a file already exists, what happens to it if you try to open it as an output file (using the 'w' mode)?

In what mode do you open a file if you want to write data to it, but you do not want to erase the file’s existing contents? When you write data to such a file, to what part of the file is the data written?

If an exception is raised and the program does not handle it with a try/except statement, what happens?
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