Re: [Python-Dev] Intended Usage of collections.abc for Custom Collections

2015-10-28 Thread jab
On Wed, Oct 28, 2015 at 1:16 PM, Brett Cannon wrote: > On Wed, 28 Oct 2015 at 08:47 wrote: > >> Dear Python-Dev, >> >> I am the author of bidict, a bidirectional map implementation for Python. >> A user recently filed a bug that bidict should be a subclass of dict, so >> that isinstance(mybidict

Re: [Python-Dev] Intended Usage of collections.abc for Custom Collections

2015-10-28 Thread Brett Cannon
On Wed, 28 Oct 2015 at 08:47 wrote: > Dear Python-Dev, > > I am the author of bidict, a bidirectional map implementation for Python. > A user recently filed a bug that bidict should be a subclass of dict, so > that isinstance(mybidict, dict) would return True. I replied that the user > should ins

[Python-Dev] Intended Usage of collections.abc for Custom Collections

2015-10-28 Thread jab
Dear Python-Dev, I am the author of bidict, a bidirectional map implementation for Python. A user recently filed a bug that bidict should be a subclass of dict, so that isinstance(mybidict, dict) would return True. I replied that the user should instead use isinstance(mybidict, collections.abc.Map