genericpath.py 文件源码

def isfile(path):
    """Test whether a path is a regular file"""
    try:
        st = os.stat(path)
    except OSError:
        return False
    return stat.S_ISREG(st.st_mode)


# Is a path a directory?
# This follows symbolic links, so both islink() and isdir()
# can be true for the same path on systems that support symlinks