1 files changed, 26 insertions, 18 deletions
diff --git a/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py b/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py
index d9925c22..b8f283b3 100755
--- a/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py
+++ b/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py
@@ -17,40 +17,48 @@ __author__ = "Vincent Rouvreau"
 __copyright__ = "Copyright (C) 2016 Inria"
 __license__ = "MIT"
 
-parser = argparse.ArgumentParser(description='AlphaComplex creation from '
-                                 'points read in a OFF file.',
-                                 epilog='Example: '
-                                 'example/alpha_complex_diagram_persistence_from_off_file_example.py '
-                                 '-f ../data/points/tore3D_300.off -a 0.6'
-                                 '- Constructs a alpha complex with the '
-                                 'points from the given OFF file.')
+parser = argparse.ArgumentParser(
+    description="AlphaComplex creation from " "points read in a OFF file.",
+    epilog="Example: "
+    "example/alpha_complex_diagram_persistence_from_off_file_example.py "
+    "-f ../data/points/tore3D_300.off -a 0.6"
+    "- Constructs a alpha complex with the "
+    "points from the given OFF file.",
+)
 parser.add_argument("-f", "--file", type=str, required=True)
 parser.add_argument("-a", "--max_alpha_square", type=float, default=0.5)
-parser.add_argument("-b", "--band", type=float, default=0.)
-parser.add_argument('--no-diagram', default=False, action='store_true' , help='Flag for not to display the diagrams')
+parser.add_argument("-b", "--band", type=float, default=0.0)
+parser.add_argument(
+    "--no-diagram",
+    default=False,
+    action="store_true",
+    help="Flag for not to display the diagrams",
+)
 
 args = parser.parse_args()
 
-with open(args.file, 'r') as f:
+with open(args.file, "r") as f:
     first_line = f.readline()
-    if (first_line == 'OFF\n') or (first_line == 'nOFF\n'):
+    if (first_line == "OFF\n") or (first_line == "nOFF\n"):
         print("#####################################################################")
         print("AlphaComplex creation from points read in a OFF file")
-        
+
         message = "AlphaComplex with max_edge_length=" + repr(args.max_alpha_square)
         print(message)
-        
+
         alpha_complex = gudhi.AlphaComplex(off_file=args.file)
-        simplex_tree = alpha_complex.create_simplex_tree(max_alpha_square=args.max_alpha_square)
-    
+        simplex_tree = alpha_complex.create_simplex_tree(
+            max_alpha_square=args.max_alpha_square
+        )
+
         message = "Number of simplices=" + repr(simplex_tree.num_simplices())
         print(message)
-        
+
         diag = simplex_tree.persistence()
-    
+
         print("betti_numbers()=")
         print(simplex_tree.betti_numbers())
-    
+
         if args.no_diagram == False:
             pplot = gudhi.plot_persistence_diagram(diag, band=args.band)
             pplot.show()