[issue1116520] Prefix search is filesystem-centric

2019-12-18 Thread Brett Cannon


Change by Brett Cannon :


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[issue1116520] Prefix search is filesystem-centric

2016-12-25 Thread Nick Coghlan

Nick Coghlan added the comment:

Note that Steve Dower made some significant changes to sys.path initialisation 
on Windows in Python 3.6 that could potentially be generalised to other 
platforms: https://docs.python.org/3/using/windows.html#finding-modules

(There's nothing inherently Windows specific about them, they're mainly useful 
for the case of embedding CPython inside a larger application)

One of those was to allow pythonXY.zip to be used as a sentinel indicating the 
location of PYTHONHOME.

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[issue1116520] Prefix search is filesystem-centric

2016-12-25 Thread Steve Holden

Steve Holden added the comment:

Don't forget that the built-in modules may need to be available before the
zipimporter is. A long time ago (when sys.metapath was introduced) I
experimented with imports from non-filesystem sources and that hit me until
I realised what was going on.

S

Steve Holden

On Sun, Dec 25, 2016 at 5:48 PM, Patrik Iselind 
wrote:

>
> Patrik Iselind added the comment:
>
> Is it enough to include everything in the Lib folder, excluding
> __pycache__, site-packages and the test folder in Lib? Would that be
> representative enough?
>
> Patrik Iselind
>
> Den 2016-12-25 kl. 17:31, skrev Brett Cannon:
> > Brett Cannon added the comment:
> >
> > Originally zip file importing was faster than standard importing from
> disk because of the fewer stat calls, but importlib caches such things so I
> don't know if it's still beneficial. As for space savings, I have no idea;
> you can try zipping the files yourself to find out the space savings.
> >
> > --
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[issue1116520] Prefix search is filesystem-centric

2016-12-25 Thread Patrik Iselind

Patrik Iselind added the comment:

Is it enough to include everything in the Lib folder, excluding 
__pycache__, site-packages and the test folder in Lib? Would that be 
representative enough?

Patrik Iselind

Den 2016-12-25 kl. 17:31, skrev Brett Cannon:
> Brett Cannon added the comment:
>
> Originally zip file importing was faster than standard importing from disk 
> because of the fewer stat calls, but importlib caches such things so I don't 
> know if it's still beneficial. As for space savings, I have no idea; you can 
> try zipping the files yourself to find out the space savings.
>
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[issue1116520] Prefix search is filesystem-centric

2016-12-25 Thread Brett Cannon

Brett Cannon added the comment:

Originally zip file importing was faster than standard importing from disk 
because of the fewer stat calls, but importlib caches such things so I don't 
know if it's still beneficial. As for space savings, I have no idea; you can 
try zipping the files yourself to find out the space savings.

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[issue1116520] Prefix search is filesystem-centric

2016-12-24 Thread Mark Lawrence

Changes by Mark Lawrence :


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[issue1116520] Prefix search is filesystem-centric

2016-12-24 Thread Patrik Iselind

Patrik Iselind added the comment:

What about the performance penalty for zipping stdlib? is it significant?

When would you like to zip stdlib? For embedded systems with limited disk
space?

Patrik Iselind

On Sat, Dec 24, 2016 at 6:34 PM, Patrik Iselind 
wrote:

>
> Patrik Iselind added the comment:
>
> How much smaller would the stdlib for 3.5 become if you compress it with
> zip?
>
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[issue1116520] Prefix search is filesystem-centric

2016-12-24 Thread Patrik Iselind

Patrik Iselind added the comment:

How much smaller would the stdlib for 3.5 become if you compress it with zip?

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[issue1116520] Prefix search is filesystem-centric

2015-08-05 Thread Eric Snow

Changes by Eric Snow ericsnowcurren...@gmail.com:


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nosy: +gregory.p.smith, superluser
versions: +Python 3.6 -Python 3.5

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[issue1116520] Prefix search is filesystem-centric

2014-07-09 Thread Mark Lawrence

Mark Lawrence added the comment:

Is this something that we could get into 3.5?

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[issue1116520] Prefix search is filesystem-centric

2012-02-27 Thread Eric Snow

Changes by Eric Snow ericsnowcurren...@gmail.com:


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[issue1116520] Prefix search is filesystem-centric

2012-02-26 Thread Nick Coghlan

Nick Coghlan ncogh...@gmail.com added the comment:

Yeah, I'm pretty sure the bootstrap mechanism needs to be able to get hold of 
os.py directly so it can be injected into the importlib._bootstrap namespace.

However, it may be worth figuring out and documenting the bare minimum that has 
to exist on the filesystem in order for importlib to get going.

It's even possible that Brett freezes enough into the interpreter binary that 
the required set has shrunk to zero.

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[issue1116520] Prefix search is filesystem-centric

2012-02-26 Thread Brett Cannon

Brett Cannon br...@python.org added the comment:

Importlib actually requires no files from disk; everything that is required for 
importlib are built-in modules or are constants in importlib itself (e.g. 
os.sep). So technically this should be doable since my bootstrap work freezes 
importlib itself.

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[issue1116520] Prefix search is filesystem-centric

2012-02-24 Thread Ezio Melotti

Changes by Ezio Melotti ezio.melo...@gmail.com:


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versions: +Python 3.3

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[issue1116520] Prefix search is filesystem-centric

2012-02-24 Thread Éric Araujo

Changes by Éric Araujo mer...@netwok.org:


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nosy: +carljm, eric.araujo
versions:  -Python 3.2

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[issue1116520] Prefix search is filesystem-centric

2010-08-09 Thread Steve Holden

Steve Holden st...@holdenweb.com added the comment:

Personally I think it's just as relevant as it always was, particularly with 
the introduction of importlib, but Brett will have a more informed opinion. I 
won't be surprised if this issue is closed as wontfix.

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[issue1116520] Prefix search is filesystem-centric

2010-08-08 Thread Terry J. Reedy

Terry J. Reedy tjre...@udel.edu added the comment:

Is this request still relevant for 3.2?

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[issue1116520] Prefix search is filesystem-centric

2009-02-15 Thread Daniel Diniz

Changes by Daniel Diniz aja...@gmail.com:


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nosy: +brett.cannon
stage:  - test needed
type:  - feature request
versions: +Python 2.7, Python 3.1

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