I need some extra eyes. I can't see how changing the "if 1" to "if 0"
causes pickling to fail without ever returning anything different for
ans and result. This comes from basic.py, (the is_number method) at
github/smichr/2052
@property
def is_number(self):
result = False
for obj in self.iter_basic_args():
if obj.is_number:
result = True
else:
result = False
break
if 1: # if 0 the lower code will calculate the result, too
return result
def my():
if not self.args:
# Atoms has its own method
return False
if all(obj.is_number for obj in self.iter_basic_args()):
return True
for s in self.symbols:
if self.diff(s).expand(mul=1): # if not zero for 1
then not zero overall
return False
return True
ans = my()
assert ans == result
return ans
Does anyone have an idea of what I am missing?
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