Getting the size of a folder in Python

folder_size.py

import os
def getFolderSize(folder):
    totalSize = 0
    for eachfile in os.listdir(folder):
        currPos = os.path.join(folder, eachfile)
        if os.path.isfile(currPos):
            totalSize += os.path.getsize(currPos)
        else:
            totalSize += getFolderSize(currPos)
    return totalSize
    
def getFolderSize2(folder):
    totalSize = 0
    for folderName, _subfolders, filenames in os.walk(folder):
        for filename in filenames:
            totalSize += os.path.getsize(os.path.join(folderName, filename))
    return totalSize