# Problem with solution_dict=True

```
var('x y')
solve(x + y, [x, y], solution_dict=True)
```

yields AttributeError: 'list' object has no attribute 'left'

Is this a bug?

Problem with solution_dict=True

```
var('x y')
solve(x + y, [x, y], solution_dict=True)
```

yields AttributeError: 'list' object has no attribute 'left'

Is this a bug?

add a comment

3

This looks like a bug introduced in Sage 6.3. It's been reported at http://trac.sagemath.org/ticket/17128.

There is now a fix posted there. If you can, please test it.

0

A workaround (tested with Sage Cell Server):

```
var('x y')
sol = []
for v in [x,y]:
sol += solve(x + y == 0,v, solution_dict=True)
sol
```

gives

```
[{x: -y}, {y: -x}]
```

0

Hi, could you please tell us which version of sage you are using? Going to sagenb.org

```
var('x y')
sol=solve(x + y, [x, y], solution_dict=True)
sol
```

gives

```
[{x: -y}]
```

which still surprises me since the system of equation is more than incomplete.

Asked: **
2014-10-09 08:48:51 -0500
**

Seen: **328 times**

Last updated: **Oct 10 '14**

Multiplying matrices with different parents?

sage cannot get the simplest form on the limit expression with binomial and exponential operations

integrate results that are different from using maxima

could someone please try this integral? segmentation fault generated

var list with only one variable error

Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.