Adding ability to reduce the amount of text printed when displaying o…

…ptimization results (#395)

* Adding ability to reduce the amount of text printed

When minimal_print it True, only variables and constraints with a
non-empty status (for example a violated bound)

* pep8 fix

* pep8 fix

* feedback from ewu63

* removed arg from __str__

* updated logic

* fixed second usage of logic

* updated docstring

* docstring case

---------

Co-authored-by: Sabet Seraj <[email protected]>

pyoptsparse/pyOpt_optimization.py

@@ -1213,7 +1213,7 @@ def processContoDict(
 
         scaled : bool
             Flag specifying if the returned array should be scaled by
-            the pyOpt scaling. The only type this is not true is
+            the pyOpt scaling. The only time this is not true is
             when the automatic derivatives are used
 
         dtype : str
@@ -1577,9 +1577,17 @@ def _mapContoOpt_Dict(self, conDict: Dict1DType) -> Dict1DType:
         con_opt = self._mapContoOpt(con)
         return self.processContoDict(con_opt, scaled=False, natural=True)
 
-    def __str__(self):
+    def summary_str(self, minimal_print=False):
         """
         Print Structured Optimization Problem
+
+        Parameters
+        ----------
+        minimal_print : bool
+            Flag to specify if the printed results should only include
+            variables and constraints with a non-empty status
+            (for example a violated bound).
+            This defaults to False, which will print all results.
         """
         TOL = 1.0e-6
 
@@ -1642,7 +1650,8 @@ def __str__(self):
                 else:
                     raise ValueError(f"Unrecognized type for variable {var.name}: {var.type}")
 
-                text += fmt.format(idx, var.name, var.type, lower, value, upper, status, width=num_c)
+                if not minimal_print or status:
+                    text += fmt.format(idx, var.name, var.type, lower, value, upper, status, width=num_c)
                 idx += 1
 
         if len(self.constraints) > 0:
@@ -1698,13 +1707,17 @@ def __str__(self):
                             # Active upper bound
                             status += "u"
 
-                    text += fmt.format(
-                        idx, c.name, typ, lower, value, upper, status, lambdaStar[con_name][j], width=num_c
-                    )
+                    if not minimal_print or status:
+                        text += fmt.format(
+                            idx, c.name, typ, lower, value, upper, status, lambdaStar[con_name][j], width=num_c
+                        )
                     idx += 1
 
         return text
 
+    def __str__(self):
+        return self.summary_str(minimal_print=False)
+
     def __getstate__(self) -> dict:
         """
         This is used for serializing class instances.