[Python-ideas] Add a method to get the subset of a dictionnary.

[Steven D'Aprano]

Oh, I forgot to mention...

On Wed, Oct 12, 2016 at 06:06:51PM +0200, Enguerrand Pelletier wrote:
> Hi all,
> 
> It always bothered me to write something like this when i want to strip 
> keys from a dictionnary in Python:
[snip]

You've started a completely new discussion on an unrelated topic, but 
you appear to have done so by replying to an existing email 
conversation and editing the subject line.

Specifically the thread with subject:

    "Improve error message when missing 'self' ..."

Editing the subject line to indicate a change in topic is good! Thank 
you for doing that!

But you should be aware that many email programs will thread this new, 
unrelated conversation under the "Improve error message" conversation. 
That means some people may see a threaded view something like this:

Subject:  
    [Python-ideas] Improve error message when missing 'self' ...
    ├─> Re: [Python-ideas] Improve error message ...
    │ └─>
    │   └─┬─>
    │     │ └─>
    │     └─>
    └─>[Python-ideas]  Add a method to get the subset ...
      └─> Re: [Python-ideas] Add a method to get ...


which may not matter if they are actually related threads, but anyone 
who has blocked or muted the original "Improve error message..." will 
not see your new conversation either. This may be considered part of the 
older conversation, and muted as well.

When you plan to start a brand new conversation, unrelated to an 
existing thread, it is best to start a fresh email, don't reply to an 
existing one. Changing the subject line is not sufficient to break the 
link between your email and the previous conversation. You should use 
your email program's New Email command, type in the new subject line, 
and then set the To address to python-ideas at python.org. That's the only 
way to avoid the risk that some people won't see your email because 
they've muted the parent thread.

Hope this helps,



Steve