Find the total number of words in the file.

Calculate the frequency of each word $($case insensitive$)$ and store it in a dictionary where the keys are the words and the values are their frequencies.

Print the $10$ most common words along with their frequencies.

Print the longest word in the file. Python is a high

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level programming language. It is widely used for various

purposes such as web development, data analysis, artificial intelligence,

and scientific computing. Python's simplicity and readability make it a

popular choice among developers. Python is known for its extensive

libraries and frameworks. It is often used in educational institutions to

teach programming concepts. Python has a large and active community of

developers who contribute to its growth and evolution.