Revert "import matplotlib only when necessary in examples, in function of args. Tests are without matplotlib, so no need to test if present"

This reverts commit ef30f636af892a2e226162af9072f0741caba886.

8 files changed, 8 insertions, 8 deletions

diff --git a/src/python/example/alpha_complex_diagram_persistence_from_off_file_example.py b/src/python/example/alpha_complex_diagram_persistence_from_off_file_example.py
index 1e0273b3..727af4fa 100755
--- a/src/python/example/alpha_complex_diagram_persistence_from_off_file_example.py
+++ b/src/python/example/alpha_complex_diagram_persistence_from_off_file_example.py
@@ -3,6 +3,7 @@
 import argparse
 import errno
 import os
+import matplotlib.pyplot as plot
 import gudhi
 
 """ This file is part of the Gudhi Library - https://gudhi.inria.fr/ -
@@ -64,7 +65,6 @@ with open(args.file, "r") as f:
         print(simplex_tree.betti_numbers())
 
         if args.no_diagram == False:
-            import matplotlib.pyplot as plot
             gudhi.plot_persistence_diagram(diag, band=args.band)
             plot.show()
     else:
diff --git a/src/python/example/euclidean_strong_witness_complex_diagram_persistence_from_off_file_example.py b/src/python/example/euclidean_strong_witness_complex_diagram_persistence_from_off_file_example.py
index 4e97cfe3..e1e572df 100755
--- a/src/python/example/euclidean_strong_witness_complex_diagram_persistence_from_off_file_example.py
+++ b/src/python/example/euclidean_strong_witness_complex_diagram_persistence_from_off_file_example.py
@@ -3,6 +3,7 @@
 import argparse
 import errno
 import os
+import matplotlib.pyplot as plot
 import gudhi
 
 """ This file is part of the Gudhi Library - https://gudhi.inria.fr/ -
@@ -81,7 +82,6 @@ with open(args.file, "r") as f:
         print(simplex_tree.betti_numbers())
 
         if args.no_diagram == False:
-            import matplotlib.pyplot as plot
             gudhi.plot_persistence_diagram(diag, band=args.band)
             plot.show()
     else:
diff --git a/src/python/example/euclidean_witness_complex_diagram_persistence_from_off_file_example.py b/src/python/example/euclidean_witness_complex_diagram_persistence_from_off_file_example.py
index 29076c74..58cb2bb5 100755
--- a/src/python/example/euclidean_witness_complex_diagram_persistence_from_off_file_example.py
+++ b/src/python/example/euclidean_witness_complex_diagram_persistence_from_off_file_example.py
@@ -3,6 +3,7 @@
 import argparse
 import errno
 import os
+import matplotlib.pyplot as plot
 import gudhi
 
 """ This file is part of the Gudhi Library - https://gudhi.inria.fr/ -
@@ -78,7 +79,6 @@ with open(args.file, "r") as f:
         print(simplex_tree.betti_numbers())
 
         if args.no_diagram == False:
-            import matplotlib.pyplot as plot
             gudhi.plot_persistence_diagram(diag, band=args.band)
             plot.show()
     else:
diff --git a/src/python/example/periodic_cubical_complex_barcode_persistence_from_perseus_file_example.py b/src/python/example/periodic_cubical_complex_barcode_persistence_from_perseus_file_example.py
index ee3290c6..499171df 100755
--- a/src/python/example/periodic_cubical_complex_barcode_persistence_from_perseus_file_example.py
+++ b/src/python/example/periodic_cubical_complex_barcode_persistence_from_perseus_file_example.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 
 import argparse
+import matplotlib.pyplot as plot
 import errno
 import os
 import gudhi
@@ -74,7 +75,6 @@ if is_file_perseus(args.file):
     print("betti_numbers()=")
     print(periodic_cubical_complex.betti_numbers())
     if args.no_barcode == False:
-        import matplotlib.pyplot as plot
         gudhi.plot_persistence_barcode(diag)
         plot.show()
 else:
diff --git a/src/python/example/rips_complex_diagram_persistence_from_correlation_matrix_file_example.py b/src/python/example/rips_complex_diagram_persistence_from_correlation_matrix_file_example.py
index ea2eb7e1..1acb187c 100755
--- a/src/python/example/rips_complex_diagram_persistence_from_correlation_matrix_file_example.py
+++ b/src/python/example/rips_complex_diagram_persistence_from_correlation_matrix_file_example.py
@@ -2,6 +2,7 @@
 
 import sys
 import argparse
+import matplotlib.pyplot as plot
 import gudhi
 
 """ This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
@@ -83,6 +84,5 @@ invert_diag = [
 ]
 
 if args.no_diagram == False:
-    import matplotlib.pyplot as plot
     gudhi.plot_persistence_diagram(invert_diag, band=args.band)
     plot.show()
diff --git a/src/python/example/rips_complex_diagram_persistence_from_distance_matrix_file_example.py b/src/python/example/rips_complex_diagram_persistence_from_distance_matrix_file_example.py
index 236d085d..79ccca96 100755
--- a/src/python/example/rips_complex_diagram_persistence_from_distance_matrix_file_example.py
+++ b/src/python/example/rips_complex_diagram_persistence_from_distance_matrix_file_example.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 
 import argparse
+import matplotlib.pyplot as plot
 import gudhi
 
 """ This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
@@ -59,6 +60,5 @@ print("betti_numbers()=")
 print(simplex_tree.betti_numbers())
 
 if args.no_diagram == False:
-    import matplotlib.pyplot as plot
     gudhi.plot_persistence_diagram(diag, band=args.band)
     plot.show()
diff --git a/src/python/example/rips_complex_diagram_persistence_from_off_file_example.py b/src/python/example/rips_complex_diagram_persistence_from_off_file_example.py
index e80233a9..6f992508 100755
--- a/src/python/example/rips_complex_diagram_persistence_from_off_file_example.py
+++ b/src/python/example/rips_complex_diagram_persistence_from_off_file_example.py
@@ -3,6 +3,7 @@
 import argparse
 import errno
 import os
+import matplotlib.pyplot as plot
 import gudhi
 
 """ This file is part of the Gudhi Library - https://gudhi.inria.fr/ -
@@ -69,7 +70,6 @@ with open(args.file, "r") as f:
         print(simplex_tree.betti_numbers())
 
         if args.no_diagram == False:
-            import matplotlib.pyplot as plot
             gudhi.plot_persistence_diagram(diag, band=args.band)
             plot.show()
     else:
diff --git a/src/python/example/tangential_complex_plain_homology_from_off_file_example.py b/src/python/example/tangential_complex_plain_homology_from_off_file_example.py
index a4b4e9f5..85bade4a 100755
--- a/src/python/example/tangential_complex_plain_homology_from_off_file_example.py
+++ b/src/python/example/tangential_complex_plain_homology_from_off_file_example.py
@@ -3,6 +3,7 @@
 import argparse
 import errno
 import os
+import matplotlib.pyplot as plot
 import gudhi
 
 """ This file is part of the Gudhi Library - https://gudhi.inria.fr/ -
@@ -61,7 +62,6 @@ with open(args.file, "r") as f:
         print(st.betti_numbers())
 
         if args.no_diagram == False:
-            import matplotlib.pyplot as plot
             gudhi.plot_persistence_diagram(diag, band=args.band)
             plot.show()
     else: