Dear all,
I was trying to find a way to import code form a python file to my
notebook (the reason is mainly to save long code in a different place
as just a plain text file, and also to be able to work on the code in
a Python editor). However, if I copy-paste working code from a
notebook to an editor, save it as a .py file and then import it into
the notebook things go wrong. In particular Sage complains about the
sgn() function.
This is the code from my notebook:
import sys
pth='/home/kees/SAGE_Python_modules/Goran'
if not pth in sys.path:
sys.path.append(pth)
from Goran_optStoppLegendre1 import *
G(x)=x^2-4; a=-3; b=3
print signScheduleOfFunction(G,a,b,10)
where signScheduleOfFunction is a class that works fine when the code
is in the notebook itself, but importing it this way yields:
Traceback (most recent call last):
File "", line 1, in <module>
File "/tmp/tmpUx0ehw/___code___.py", line 23, in <module>
exec compile(u'print signScheduleOfFunction(G,a,b,_sage_const_10 )
File "", line 1, in <module>
File "/home/kees/SAGE_Python_modules/Goran/
Goran_optStoppLegendre1.py", line 195, in __init__
self.zerosList=findZerosOnInterval(func,a,b,maxDiff=10^(-4),guessIntervals=intVals,showProgress=False)
File "/home/kees/SAGE_Python_modules/Goran/
Goran_optStoppLegendre1.py", line 33, in findZerosOnInterval
res2=findZerosOnInterval(func,interval[0],interval[1],maxDiff,guessIntervals=None,showProgress=False)
File "/home/kees/SAGE_Python_modules/Goran/
Goran_optStoppLegendre1.py", line 42, in findZerosOnInterval
signFunc1=sgn(func(a)); signFunc2=sgn(func(b))
NameError: global name 'sgn' is not defined
So I guess my problem is that I don't understand the namespaces
involved somehow, since sgn() lives somewhere in a Sage namespace and
importing doesn't place the code in the right name space or something?
Does anybody have a hint how I may do things so such an import will
work?
Many thanks, Kees
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