Replacing "illegal characters" in html

[BenO]

Hi

I'm new to python and need to write a function to replace certain characters
in a string (html).

The characters I need to replace come from MS Word copy & paste and are:

' (Left quote)
' (Right quote)
Double Left quotes
Double Right quotes

Can anyone help me or point me in the right direction on an efficient way of
doing this?

Thanks

Ben