# print constraints Gurobi Python

## Question:

I’m using Gurobi in Python and for a given set `S`

I’m adding the constraint as follows:

```
for i in S:
m.addConstr(quicksum(x[i,j] for j in (set(V) - set(S))) >= 2)
```

I want to print these constraints for each value of the sets `S`

and `V`

on the screen.

For an example, if `S={1,3,4}`

and `V= {1,2,3,4,5,6}`

, then, my constraint will be `x[1,2]+x[1,5]+x[1,6]+x[3,2]+x[3,5]+x[3,6]+x[4,2]+x[4,5]+x[4,6]>=2`

I want this constraint to be preinted on the screen.

Can someone please help me to do it?

## Answers:

There is no built-in function to do this. Your best option is to call `Model.write()`

to export the model as an LP file.

Use model.write(“file.lp”). You can choose any name for file but the extension must be lp.

use `print (model.display())`

after calling `model.optimize()`

function.

Else you can also use `model.write(file_path)`

as suggested above by Greg