Comment by rectangletangle

    >>py34 lns.py
    total lines: 2099
    0.063% over 80

Not many apparently, and a significant portion of them are hard coded URLs/strings in scripts. I guess I stand corrected, 120 isn't that useful...

    import os

    from pathlib import Path

    def walklines(glob='**/*.py'):
        for filename in Path(os.getcwd()).glob(glob):
            with open(str(filename)) as file:
                for line in file.readlines():
                    yield line

    if __name__ == '__main__':
        alllines = [line for line in walklines()
                    if line]

        totallines = len(alllines)

        cutoff = 80

        total_long_lines = len([line for line in alllines
                                if len(line) > cutoff])

        prcnt_long = total_long_lines / totallines

        print('total lines: {}'.format(totallines))
        print('{:.3f}% over {}'.format(prcnt_long, cutoff))