Get File Size

import os
 
def get_file_size(filepath: str) -> int:
    return os.path.getsize(filepath)
 
def get_file_size_str(filepath: str) -> str:
    size = float(os.path.getsize(filepath))
    for unit in ('B', 'KB', 'MB', 'GB', 'TB'):
        if size < 1024:
            return f'{size:.2f}{unit}'
        size /= 1024
    return f'{size:.2f}PB'