Reading a file line by line

We can iterate over a file in a line-by-line way:

>>> with open('test.txt', 'r') as file:
>>>    for line in file:
>>>        print(line)

In this example, we join all these functionalities with exception-management when we are working with files.

You can find the following code in the create_file_exceptions.py file:

def main():
    try:
        with open('test.txt', 'w') as file:
            file.write("this is a test file")
    except IOError as e:
        print("Exception caught: Unable to write to file", e)
    except Exception as e:
        print("Another error occurred ", e)
    else:
        print("File written to successfully")
 
if __name__ == '__main__':
    main()