lab8

import os

os.chdir('/students/u6431023/comp1730/lab8')
fileObj = open("sample.txt")

def main():
    #printLinesBackwards(fileObj)
    print(filesInDir('/students/u6431023/comp1730/'))

def countLinesInFile(file):
    posStart = file.tell()
    numLines = sum(1 for line in file)
    file.seek(posStart)
    return numLines

def printLinesBackwards(file):
    lines = []
    num = countLinesInFile(file)
    for i in range(num):
        lines.append(file.readline())
    for i in range(num-1, -1, -1):
        print(lines[i])

def filesInDir(dirAddress):
    if os.path.isdir(dirAddress):
        os.chdir(dirAddress)
        files = []
        for obj in os.listdir():
            print ('obj',obj)
            if os.path.isfile(obj):
                files.append(obj)
            elif os.path.isdir(obj):
                print ("why aren't ihere?")
                files.extend(filesInDir(obj))
            else:
                print(obj)
        return files


if True:
    main()