[IronPython] Compiled dlls and builtin modules

Michael Foord fuzzyman at voidspace.org.uk
Tue Dec 16 00:04:05 CET 2008

Dino Viehland wrote:
> I think this behavior is currently by design because we’re using 
> sys.meta_path which does take precedence over the built-in modules. We 
> could switch to using sys.path_hooks in 2.1 or 3.0 if the consensus is 
> this behavior in undesirable (which would also give control over when 
> pre-compiled modules take precedence over other places on sys.path). 
> Personally I’m +0 to make the change but this would probably break the 
> other recently reported behavior w/ combinations on disk as .py files 
> & precompiled files J
Another suggestion is that you stop including these unneeded modules in 
the version of the standard library shipped with the IronPython 2 


> *From:* users-bounces at lists.ironpython.com 
> [mailto:users-bounces at lists.ironpython.com] *On Behalf Of *Glenn Jones
> *Sent:* Friday, December 12, 2008 8:27 AM
> *To:* Discussion of IronPython
> *Subject:* [IronPython] Compiled dlls and builtin modules
> Hi all,
> We are compiling the python standard library (so it can be ngend when 
> it is shipped with Resolver One) and we've discovered that modules in 
> the dll take precedence over builtins. We noticed this because re and 
> socket are included in the standard Lib directory (installed with 
> IPy2) and when we ran against the dll built from the Lib, importing 
> them failed.
> We have removed the following files from the standard library (and we 
> may have to remove some others):
> socket, copy_reg, re, sre_compile, sre_constants, sre_parse (the sre_* 
> were referenced in re)
> A better solution would be for builtin modules to take precedence over 
> modules in referenced assemblies.
> As an experiment, we created a datetime module that just printed that 
> it was being imported. When we included it in a dll and referenced it, 
> it replaced the builtin datetime.
> Glenn & Orestis
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