fixed chip.show() -> changed fig.show() to plt.show() to block the python process

Author: HelgeGehring

CHANGELOG.md

@@ -10,6 +10,7 @@ Unreleased
 * Fixed evaluation of width-parameter in add_parametrized_path
 * Stopped testing with Python 3.5, as it reached it's end-of-life and added a warning
 * Deprecated gdsCAD, as it isn't compatible with Python 3
+* Fixed cell.show
 
 1.1.2
 -----

gdshelpers/geometry/chip.py

@@ -531,7 +531,7 @@ def show(self, layers: Optional[List[int]] = None, padding=5):
         ax.set_xlim(bounds[0] - padding, bounds[2] + padding)
         ax.set_ylim(bounds[1] - padding, bounds[3] + padding)
         ax.set_aspect(1)
-        fig.show()
+        plt.show()
 
     def add_dlw_marker(self, label: str, layer: int, origin):
         """