Ha ha. In misc/superseded.py the function warning just reset all filters
each time it is called
def warning(...):
_check_trac_number(trac_number)
message += '\n'
message += 'See http://trac.sagemath.org/'+ str(trac_number) + '
for details.'
resetwarnings()
# Stack level 3
Hello,
I was expecting the following to catch the DeprecationWarning
import warnings
warnings.filterwarnings('error',category=DeprecationWarning)
try:
print (exp(x)*exp(3*x)).simplify_exp() #example with exp function
except DeprecationWarning:
print 'MegBook.py say: exercise needs
