X-Git-Url: https://scm.cri.minesparis.psl.eu/git/linpy.git/blobdiff_plain/b02f9551644488e5943f968ac847fe4ed7690d6b..6f888673868879dfd38050bcaedb93c7fd5bac66:/linpy/linexprs.py

diff --git a/linpy/linexprs.py b/linpy/linexprs.py
index b2cec53..ab5d344 100644
--- a/linpy/linexprs.py
+++ b/linpy/linexprs.py
@@ -122,7 +122,7 @@ class LinExpr:
         """
         if not isinstance(symbol, Symbol):
             raise TypeError('symbol must be a Symbol instance')
-        return self._coefficients.get(symbol, 0)
+        return self._coefficients.get(symbol, Fraction(0))
 
     __getitem__ = coefficient
 
@@ -131,8 +131,7 @@ class LinExpr:
         Iterate over the pairs (symbol, value) of linear terms in the
         expression. The constant term is ignored.
         """
-        for symbol, coefficient in self._coefficients.items():
-            yield symbol, coefficient
+        yield from self._coefficients.items()
 
     @property
     def constant(self):