pymcnp: updated Inp.to_mcnp

Author: BitterB0NG0

src/pymcnp/Inp.py

@@ -129,16 +129,18 @@ def to_mcnp(self):
         # source += f'c {"cells":^76.76}\n'
         # source += DELIMITER
 
-        return f"""
-{self.message + "\n" if self.message else ""}{self.title}
-{'\n'.join(map(str, self.cells))}
-
-{'\n'.join(map(str, self.surfaces))}
-
-{'\n'.join(map(str, self.data))}
-
-{self.other if self.other is not None else ""}
-"""[1:-1]
+        return (
+            (self.message + '\n' if self.message else '')
+            + self.title.value
+            + '\n'
+            + '\n'.join(map(str, self.cells))
+            + '\n\n'
+            + '\n'.join(map(str, self.surfaces))
+            + '\n\n'
+            + '\n'.join(map(str, self.data))
+            + '\n\n'
+            + (self.other if self.other is not None else '')
+        )
 
     def draw(self) -> _show.Shape:
         """

tests/test_pymcnp/test__cli/test_plot.py

@@ -14,5 +14,5 @@ def test_valid(self):
         def test_invalid(self):
             os.system(f"pymcnp plot {pathlib.Path(__file__).parent.parent.parent.parent / 'files' / 'outp' / 'invalid_02.outp'} 1")
             os.system(f"pymcnp plot {pathlib.Path(__file__).parent.parent.parent.parent / 'files' / 'outp' / 'example_00.outp'} 132423")
-            os.system("pymcnp plot hello 1")
+            os.system('pymcnp plot hello 1')
             matplotlib.pyplot.close()

tests/test_pymcnp/test__cli/test_visualize.py

@@ -12,4 +12,4 @@ def test_valid(self):
 
         def test_invalid(self):
             os.system(f"pymcnp visualize {pathlib.Path(__file__).parent.parent.parent.parent / 'files' / 'inp' / 'invalid_00.inp'}")
-            os.system(f"pymcnp visualize hello")
+            os.system('pymcnp visualize hello')