Utils.py 文件源码

def dirsize(src):
    """
    Takes a source directory and returns the entire size of all of it's
    content(s) in bytes.

    The function returns None if the size can't be properly calculated.
    """
    if not isdir(src):
        # Nothing to return
        return 0

    try:
        with pushd(src, create_if_missing=False):
            size = sum(getsize(f) for f in listdir('.') if isfile(f))

    except (OSError, IOError):
        return None

    # Return our total size
    return size