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.

1 files changed, 1 insertions, 1 deletions

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: