Hi
I am using the numba just in time compiler (version 0.16) for speeding up
numerical calculations under python.
For testing it I have slightly modified the standard web2py welcome
application such that the index controller function calls a tiny function
numba_add which
adds 2 numbers.
from numba import *
#@jit
def numba_add(x,y):
z=x+y
return z
def index():
"""
example action using the internationalization operator T and flash
rendered by views/default/index.html or views/generic.html
if you need a simple wiki simply replace the two lines below with:
return auth.wiki()
"""
response.flash = T("7+4={}".format(numba_add(7.0,4.0)))
return dict(message=T('Hello World {}'.format(numba_add(7.0,4.0))))
When running it, numba is imported and if I comment out the @jit decorator
the application works well. However if I use the @jit decorator to compile
it I get the error ticket below.
Does anyone have a clue what could be wrong. I have now idea what the error
message means.
Leo Haimberger
Error ticket for "welcome"Ticket ID
131.130.157.11.2015-01-15.10-57-59.c400457e-a478-49cf-b014-acde33d01266
<type 'exceptions.KeyError'> "Failed at object mode
backend\n'__restricted__'"Versionweb2py™Version
2.9.11-stable+timestamp.2014.09.15.23.35.11Traceback
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Traceback (most recent call last):
File "/fio/srvx7/leo/python/web2py/gluon/restricted.py", line 224, in
restricted
exec ccode in environment
File
"/fio/srvx7/leo/python/web2py/applications/welcome/controllers/default.py"
<http://localhost:8000/admin/default/edit/welcome/controllers/default.py>, line
79, in <module>
File "/fio/srvx7/leo/python/web2py/gluon/globals.py", line 392, in <lambda>
self._caller = lambda f: f()
File
"/fio/srvx7/leo/python/web2py/applications/welcome/controllers/default.py"
<http://localhost:8000/admin/default/edit/welcome/controllers/default.py>, line
26, in index
response.flash = T("7+4={}".format(numba_add(7.0,4.0)))
File
"/opt/anaconda/lib/python2.7/site-packages/numba-0.16.0-py2.7-linux-x86_64.egg/numba/dispatcher.py",
line 153, in _compile_for_args
return self.jit(sig)
File
"/opt/anaconda/lib/python2.7/site-packages/numba-0.16.0-py2.7-linux-x86_64.egg/numba/dispatcher.py",
line 144, in jit
return self.compile(sig, **kws)
File
"/opt/anaconda/lib/python2.7/site-packages/numba-0.16.0-py2.7-linux-x86_64.egg/numba/dispatcher.py",
line 279, in compile
flags=flags, locals=locs)
File
"/opt/anaconda/lib/python2.7/site-packages/numba-0.16.0-py2.7-linux-x86_64.egg/numba/compiler.py",
line 552, in compile_extra
return pipeline.compile_extra(func)
File
"/opt/anaconda/lib/python2.7/site-packages/numba-0.16.0-py2.7-linux-x86_64.egg/numba/compiler.py",
line 263, in compile_extra
return self.compile_bytecode(res.result, func_attr=self.func_attr)
File
"/opt/anaconda/lib/python2.7/site-packages/numba-0.16.0-py2.7-linux-x86_64.egg/numba/compiler.py",
line 275, in compile_bytecode
return self._compile_bytecode()
File
"/opt/anaconda/lib/python2.7/site-packages/numba-0.16.0-py2.7-linux-x86_64.egg/numba/compiler.py",
line 501, in _compile_bytecode
return self._run_pipeline(pipelines)
File
"/opt/anaconda/lib/python2.7/site-packages/numba-0.16.0-py2.7-linux-x86_64.egg/numba/compiler.py",
line 526, in _run_pipeline
raise _raise_error(msg, res.exception)
KeyError: "Failed at object mode backend\n'__restricted__'"
In file:
/fio/srvx7/leo/python/web2py/applications/welcome/controllers/default.py
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# -*- coding: utf-8 -*-
# this file is released under public domain and you can use without limitations
#########################################################################
## This is a sample controller
## - index is the default action of any application
## - user is required for authentication and authorization
## - download is for downloading files uploaded in the db (does streaming)
## - api is an example of Hypermedia API support and access control
#########################################################################
from numba import *
@jit
def numba_add(x,y):
z=x+y
return z
def index():
"""
example action using the internationalization operator T and flash
rendered by views/default/index.html or views/generic.html
if you need a simple wiki simply replace the two lines below with:
return auth.wiki()
"""
response <http://localhost:8000/examples/global/vars/response>.flash = T
<http://localhost:8000/examples/global/vars/T>("7+4={}".format(numba_add(7.0,4.0)))
return dict(message=T <http://localhost:8000/examples/global/vars/T>('Hello
World {}'.format(numba_add(7.0,4.0))))
--
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