[Python-Dev] Relative import
ncoghlan at iinet.net.au
Sun Dec 21 08:16:58 EST 2003
Jack Diederich wrote:
> I like syntax that reads most important left-to-right, so what about
> from MODULE import NAMES as RENAME searching HOW
> import NAMES as RENAME from MODULE searching HOW
This would work really well for any uses cases I can imagine having. It
also has the following benefits:
1. No magic punctuation
2. People who don't need it, just never use a 'searching' clause
3. People encountering it for the first time have a clear flag letting
them know something fancy is going on
4. These people have a word they can look up in the Python docs
I hadn't even thought of point 4 prior to considering Jack's proposal.
If I encounter "import .fred.mary" in some python I didn't write, how
the heck do I find out what it means?
> ps, I like the second version better but it is less like the current version,
> which is a drawback.
To head a little further down this sidetrack, the from version of
'import' has puzzled me for a while:
A. from mypkg import foo
B. import mypkg.foo as foo
What, if any, are the semantic differences between A & B? Is it only
that A2 works, and B2 doesn't?
A2. from mymodule import *
B2. import mymodule.*
Nick Coghlan | Brisbane, Australia
Email: ncoghlan at email.com | Mobile: +61 409 573 268
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