# CodeStepByStep

## word_stats_plus

Language/Type: Python file input

Write a function named `word_stats_plus` that accepts as its parameter a string holding a file name, opens that file and reads its contents as a sequence of words, and produces a particular group of statistics about the input. You should report: the total number of lines total number of words the number of unique letters used from A-Z, case-insensitively, and its percentage of the 26-letter alphabet the average number of words per line and the average word length (both numbers rounded to the nearest tenth). For example, suppose the file `tobe.txt` contains the following text:

```To be  or not  TO BE,
THAT  IS

really   the  question.
```

For the purposes of this problem, we will use whitespace to separate words. That means that some words include punctuation, as in "be,". For the input above, the call of `word_stats_plus("tobe.txt")` should produce exactly the following output. The number of "unique letters" is 14 because the file contains 14 distinct letters of the alphabet from A-Z: a, b, e, h, i, l, n, o, q, r, s, t, u, and y.

```Total lines = 4
Total words = 11
Total unique letters = 14 (53% of alphabet)
Average words/line = 2.8
Average word length = 3.5
```

Assumptions: You may assume that the input file exists and is readable. Round all real numbers to one digit past the decimal point.

Constraints: Your solution should read the file only once, not make multiple passes over the file data.

Function: Write a Python function as described, not a complete program.

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