Renato Alves wrote, On 06/25/08 13:58: > I just tried it myself and couldn't understand how it works ... > > I got the same error as you, but even more, after two or three refreshes > on the page, I get: > > File "/var/tmp/modpython/mptest.py", line 2, in <module> > import rpy > > File "/usr/lib/python2.5/site-packages/rpy.py", line 346, in <module> > r = R() > > File "/usr/lib/python2.5/site-packages/rpy.py", line 286, in __init__ > _rpy.r_init(HAS_NUMERIC); > > RuntimeError: Only one R object may be instantiated per session
I get the same. I assume that an R object is partly created with the first try, which then prevents any further attempts. So the RuntimeError most likely goes away if the first problem (RPy_Exception: R Function "get" not found) can be solved. Christof > > So I guess you can't plainly import rpy from within modpython due to the > way sessions are managed. > > About the get problem I have no clue either... > > Quoting Christof Winter on 06/25/2008 08:53 AM: >> Hi Renato, >> >> sorry for the late reply, I hadn't subscribed for the mailing list >> until now. >> I tried the import rpy, it gives exactly the same error message. >> >> The use of from rpy import * is documented, e.g. at >> http://rpy.sourceforge.net/rpy/doc/rpy_html/Small-example.html#Small-example >> >> >> Cheers, >> Christof >> >> >> Re: [Rpy] rpy and mod_python problem >> From: Renato Alves <[EMAIL PROTECTED]> - 2008-06-12 16:13 >> It's not a good python practice to use: >> >> from somewhere import * >> >> Instead consider using: >> >> from somewhere import function1, function2, function3 ... (as needed) >> >> or simply: >> >> import rpy >> >> >> In the last case you will be using "rpy.r" instead of "r". >> >> Can you test if this works for your mod_python setup? >> >> >> Quoting Christof Winter on 06/11/2008 08:57 PM: >>> I tried to include use rpy within a Python script that runs on a >> mod_python >>> Apache server. Upon import with from rpy import *, I get >>> >>> RPy_Exception: R Function "get" not found >>> >>> The full error stack trace is pasted below. Any ideas? There was a >> similar post >>> concerning django, with the same error message, filed as >> (rpy-Bugs-1772975). >>> I am running rpy version 1.0.4 with R version 2.7.0 (2008-04-22) and >> Python >>> 2.5.2 on Debian Linux. >>> >>> Christof >>> >>> >>> >>> Traceback (most recent call last): >>> >>> File "/usr/lib/python2.5/site-packages/mod_python/importer.py", line >> 1537, in >>> HandlerDispatch >>> default=default_handler, arg=req, silent=hlist.silent) >>> >>> File "/usr/lib/python2.5/site-packages/mod_python/importer.py", line >> 1229, in >>> _process_target >>> result = _execute_target(config, req, object, arg) >>> >>> File "/usr/lib/python2.5/site-packages/mod_python/importer.py", line >> 1128, in >>> _execute_target >>> result = object(arg) >>> >>> File "/usr/lib/python2.5/site-packages/mod_python/publisher.py", >> line 204, in >>> handler >>> module = page_cache[req] >>> >>> File "/usr/lib/python2.5/site-packages/mod_python/importer.py", line >> 1059, in >>> __getitem__ >>> return import_module(req.filename) >>> >>> File "/usr/lib/python2.5/site-packages/mod_python/importer.py", line >> 296, in >>> import_module >>> log, import_path) >>> >>> File "/usr/lib/python2.5/site-packages/mod_python/importer.py", line >> 680, in >>> import_module >>> execfile(file, module.__dict__) >>> >>> File "/var/www/testing/myscript.py", line 19, in <module> >>> from rpy import * >>> >>> File "/usr/lib/python2.5/site-packages/rpy.py", line 346, in <module> >>> r = R() >>> >>> File "/usr/lib/python2.5/site-packages/rpy.py", line 289, in __init__ >>> self.get = _rpy.get_fun('get') # this must happen before any calls >> to self >>> or its methods! >>> >>> RPy_Exception: R Function "get" not found >>> >>> >>> >>> >> ------------------------------------------------------------------------- >>> Check out the new SourceForge.net Marketplace. >>> It's the best place to buy or sell services for >>> just about anything Open Source. >>> http://sourceforge.net/services/buy/index.php >>> _______________________________________________ >>> rpy-list mailing list >>> [EMAIL PROTECTED] >>> https://lists.sourceforge.net/lists/listinfo/rpy-list >>> ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ rpy-list mailing list rpy-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rpy-list
