python get error message from exception code example

Example 1: python get exception message

try:
    with open(filepath,'rb') as f:
        con.storbinary('STOR '+ filepath, f)
    logger.info('File successfully uploaded to '+ FTPADDR)
except Exception as e: # work on python 3.x
    logger.error('Failed to upload to ftp: '+ str(e))

Example 2: python: raise error

class MyError(TypeError):
    pass

raise MyError('An error happened')