python 3 compatibility

vendor/pip-pop/pip-diff

@@ -79,18 +79,18 @@ def diff(r1, r2, include_fresh=False, include_stale=False):
         r1 = Requirements(r1)
         r2 = Requirements(r2)
     except ValueError:
-        print 'There was a problem loading the given requirements files.'
+        print('There was a problem loading the given requirements files.')
         exit(os.EX_NOINPUT)
 
     results = r1.diff(r2, ignore_versions=True)
 
     if include_fresh:
         for line in results['fresh']:
-            print line.project_name if include_versions else line
+            print(line.project_name if include_versions else line)
 
     if include_stale:
         for line in results['stale']:
-            print line.project_name if include_versions else line
+            print(line.project_name if include_versions else line)
 
 
 

vendor/pip-pop/pip-grep

@@ -41,7 +41,7 @@ def grep(reqfile, packages, silent=False):
     except ValueError:
 
         if not silent:
-            print 'There was a problem loading the given requirement file.'
+            print('There was a problem loading the given requirement file.')
 
         exit(os.EX_NOINPUT)
 
@@ -52,12 +52,12 @@ def grep(reqfile, packages, silent=False):
             if requirement.req.project_name in packages:
 
                 if not silent:
-                    print 'Package {} found!'.format(requirement.req.project_name)
+                    print('Package {} found!'.format(requirement.req.project_name))
 
                 exit(0)
 
     if not silent:
-        print 'Not found.'.format(requirement.req.project_name)
+        print('Not found.'.format(requirement.req.project_name))
 
     exit(1)