Question: Python help open_file() prompts the user to enter a file name. The program will try to open the data file. Appropriate error message should be

Python help open_file() prompts the user to enter a file name. The program will try to open the data file. Appropriate error message should be shown if the data file cannot be opened. This function will loop until it receives proper input and successfully opens the file. It returns a file pointer. def open_file(): ''' Remember the docstring''' pass # this is a placeholder that you will replace with Python code

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