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4.28.3 pyobject operations
+- addition
-- negation or subtraction
*- multiplication
/- division
^,**- power by a positive integer
<,<=,>,>=,==,<>- comparators (considering leading monomials w.r.t. monomial ordering)
- pyobject_expression
[int_expression] - get the item from the pyobject by index
- pyobject_expression
(pyobject_expression_sequence) - call the pyobject with a sequence of python arguments (the latter
may be empty)
- pyobject_expression
.( string_expression | name ), - pyobject_expression
::( string_expression | name ) get attribute (class member) of a python object
Example:
pyobject two = 2;
pyobject three = 3;
two + three;
==> 5
two - three;
==> -1
two * three;
==> 6
two / three;
==> 0
two ^ three;
==> 8
two ** three;
==> 8
three < two;
==> 0
two < three;
==> 1
three <= two;
==> 0
two <= three;
==> 1
two == three;
==> 0
two == two;
==> 1
three > two;
==> 1
two > three;
==> 0
three >= two;
==> 1
two >= three;
==> 0
two != two;
==> 0
two != three;
==> 1
pyobject pystr = "Hello";
pystr + " World!";
==> 'Hello World!'
pystr * 3;
==> 'HelloHelloHello'
pystr[1];
==> 'e'
python_run("def newfunc(*args): return list(args)");
newfunc();
==> []
newfunc(two, three);
==> [2, 3]
newfunc."__class__";
==> <type 'function'>
newfunc::"__class__";
==> <type 'function'>
newfunc.func_name;
==> 'newfunc'
newfunc::func_name;
==> 'newfunc'
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