Sorry! I hadn't seen that, that's great, thank you! The denominator is
proving to be a bit tricky to deal with, mostly because I can't decide what
I want to do with it. I did it though, but I'm not happy with it. I'm also
an amatuer at regex(this is the first time I've used it, I figured it was
about time I started learning now). But, I Think it should work? So, I made
another method named sage_prodstring that does a similar job to
sage_polystring. Here is the code for it:
def sage_prodstring(self):
"""
If this Macaulay2 element is a Product, return a string
representation of this Product that is suitable for
evaluation in Python. Needed internally for using to_sage on
objects of class Divide.
EXAMPLES::
"""
external_string = self.external_String()
prod_String = re.findall("new Power from \{(.+?),(.+?)\}",
external_string)
final_Prod = ""
for i in range(0, len(prod_String)):
final_Prod += "(" + prod_String[i][0] + ")" + '^' + prod_String[i][1
] + "*"
final_Prod = final_Prod[:-1]
return final_Prod
I don't really know what to put in the Examples part. If you have any
recommendations, I'd love to know. Also, I feel like this implementation is
inneficient, since it first runs external_string, which is a Sage method
that parses Macaulay's ascii art into a str, and then my method parses that
str into something that you could actually use as python code. I feel like,
ideally, I wouldn't need to run external_string, and could directly convert
the ascii output from macaulay directly into the python code output I
wanted, but i couldn't figure out exactly how to do that... I hope this is
okay. I don't think i can test it yet until I fill in the spot for the
Example though.
I then used this method in the to_sage() function for the denominator, as
seen here:
elif cls_str == "Divide":
div_Numerator = self.numerator()
div_Denominator = self.denominator()
div_Numerator = div_Numerator.sage_polystring()
div_Denominator = div_Denominator.sage_prodstring()
sage_Div = "(" + div_Numerator ")" + "/" + "(" +
div_Denominator + ")"
return sage_Div
How does it look? Thanks for all the help thus far.
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