URGENT: Can anyone please show me how to write this code in python??
Prompt:
Recall that when the built-in function float() is called it returns a floating-point number constructed
from a number or string. However, if the string doesn’t represent a valid floating-point value, an
exception is raised.
Write a function safeFloat() that takes one parameter, x — a number or string that needs to be
converted to floating point number. When safeFloat() is used to convert a number or string, an
equivalent floating point number is returned if no exception is raised, just like for the float() function. If
an exception is raised while trying to convert a number or string, safeFloat() should return 0.0 floating
point value.
For example, the following is correct output:
>>> # float()
>>> float('abc')
Traceback (most recent call last):
File "<pyshell#9>", line 1, in <module>
float('abc')
ValueError: could not convert string to float: 'abc'
>>>
>>> # safeFloat()
>>> f = safeFloat('abc')
>>> print(f)
0.0
>>>
Sure, here's the code in Python that implements the safeFloat() function:
```python
def safeFloat(x):
try:
return float(x)
except ValueError:
return 0.0
```
To explain how the code works:
1. The function `safeFloat()` takes one parameter `x` which can be either a number or a string that needs to be converted to a floating-point number.
2. Inside the function, we use a try-except block to handle the possibility of a `ValueError` being raised when trying to convert `x` to a float.
3. In the `try` block, we use the `float()` function to convert `x` to a floating-point number. If the conversion is successful, the float value is returned.
4. If a `ValueError` is raised during the conversion, the code jumps to the `except` block. In this case, we return `0.0`, which is the requested behavior if an exception occurs while converting `x` to a float.
5. Outside the function, you can call `safeFloat()` with a number or a string, and it will return the corresponding floating-point value or `0.0` if an exception occurs.
You can test the code using the following example:
```python
# float()
print(float('abc'))
# safeFloat()
f = safeFloat('abc')
print(f)
```
The output will be:
```
Traceback (most recent call last):
File "<pyshell#9>", line 1, in <module>
float('abc')
ValueError: could not convert string to float: 'abc'
0.0
```
As you can see, the float() function raises a ValueError when trying to convert the string `'abc'`, while the safeFloat() function returns `0.0` as expected when encountering this error.