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Answer:
When the program raises an exception as soon as the end of the is reached, this exception makes the input process difficult. We have no specific or clear way to encounter the end of the file before the exception is raised.
So to resolve this Python's try except statement can be used. This statement catches the exception and enables the program to recover. We can construct an input file loop. This loop will keep loading objects until the end of the file is detected. Below is an example to load objects from the file into a new list.
lst=list()
fileObj = open("item.dat","rb")
while True:
try:
item= pickle.load(fileObj)
lst.append(item)
except EOFError:
fileObj.close()
break
print(lst)
The file name is item.dat and new list is named as lst. When the end of the file is encountered EOFError is raised and except clause with EOFError closes the input file and breaks out of the loop.
Python try except is a statement that can be used to catch and handle the exceptions. The program that follows the except statement, a response of the program to any exception follows python try except in the preceding try clause.
In the given problem, the statement catches the exception and handles the program to recover.
The program can be created by applying input file loop, such that the loop will keep loading objects until the end of the file is found.
The program is:
lst=list()
fileObj = open("item.dat","rb")
while True:
try:
item= pickle.load(fileObj)
lst.append(item)
except EOFError:
fileObj.close()
break
print(lst)
Thus, at the end of the file, when EOFE is encountered, the error is raised and except clause with EOFrror closes the file and breaks out of the loop.
To know more about python try except, refer to the following link:
https://brainly.com/question/24131915
