print out multiline output

v1/v1.py

@@ -4,8 +4,9 @@ import tempfile
 import uuid
 
 from IPython.core.magic import Magics, cell_magic, magics_class
+from common import helper
 
-compiler = '/usr/local/cuda/bin/nvcc -Wno-deprecated-gpu-targets'
+compiler = '/usr/local/cuda/bin/nvcc'
 ext = '.cu'
 
 
@@ -14,21 +15,26 @@ class NVCCPlugin(Magics):
 
     def __init__(self, shell):
         super(NVCCPlugin, self).__init__(shell)
-        from common import helper
+
         self.argparser = helper.get_argparser()
 
     @staticmethod
     def compile(file_path):
-        subprocess.check_output([compiler, file_path + ext, "-o", file_path + ".out"], stderr=subprocess.STDOUT)
+        subprocess.check_output(
+            [compiler, file_path + ext, "-o", file_path + ".out", '-Wno-deprecated-gpu-targets'], stderr=subprocess.STDOUT)
 
     def run(self, file_path, timeit=False):
         if timeit:
             stmt = f"subprocess.check_output(['{file_path}.out'], stderr=subprocess.STDOUT)"
-            output = self.shell.run_cell_magic(magic_name="timeit", line="-q -o import subprocess", cell=stmt)
+            output = self.shell.run_cell_magic(
+                magic_name="timeit", line="-q -o import subprocess", cell=stmt)
         else:
-            output = subprocess.check_output([file_path + ".out"], stderr=subprocess.STDOUT)
+            output = subprocess.check_output(
+                [file_path + ".out"], stderr=subprocess.STDOUT)
             output = output.decode('utf8')
-        return output
+            
+        helper.print_out(output)
+        return None
 
     @cell_magic
     def cu(self, line, cell):
@@ -46,6 +52,6 @@ class NVCCPlugin(Magics):
                 self.compile(file_path)
                 output = self.run(file_path, timeit=args.timeit)
             except subprocess.CalledProcessError as e:
-                print(e.output.decode("utf8"))
+                helper.print_out(e.output.decode("utf8"))
                 output = None
         return output