Portable Python script across Python version

Using from __future__ import print_function it is possible to have a compatible behavior of `print(...)` across Python version.

Differential Revision: https://reviews.llvm.org/D55213

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@349454 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 9 insertions, 8 deletions

diff --git a/docs/conf.py b/docs/conf.py
index dc69f8a848..a18ce3a304 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -11,6 +11,7 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
+from __future__ import print_function
 import sys, os
 from datetime import date
 
@@ -233,14 +234,14 @@ for name in os.listdir(command_guide_path):
         header = f.readline().rstrip('\n')
 
         if len(header) != len(title):
-            print >>sys.stderr, (
+            print((
                 "error: invalid header in %r (does not match title)" % (
-                    file_subpath,))
+                    file_subpath,)), file=sys.stderr)
         if ' - ' not in title:
-            print >>sys.stderr, (
+            print((
                 ("error: invalid title in %r "
                  "(expected '<name> - <description>')") % (
-                    file_subpath,))
+                    file_subpath,)), file=sys.stderr)
 
         # Split the name out of the title.
         name,description = title.split(' - ', 1)
diff --git a/docs/tools/dump_ast_matchers.py b/docs/tools/dump_ast_matchers.py
index 2c0cbafa8a..cae27b20a9 100755
--- a/docs/tools/dump_ast_matchers.py
+++ b/docs/tools/dump_ast_matchers.py
@@ -41,7 +41,7 @@ def esc(text):
     url = 'https://clang.llvm.org/doxygen/classclang_1_1%s.html' % name
     if url not in doxygen_probes:
       try:
-        print 'Probing %s...' % url
+        print('Probing %s...' % url)
         urllib2.urlopen(url)
         doxygen_probes[url] = True
       except:
@@ -307,14 +307,14 @@ def act_on_decl(declaration, comment, allowed_types):
       if not result_types:
         if not comment:
           # Only overloads don't have their own doxygen comments; ignore those.
-          print 'Ignoring "%s"' % name
+          print('Ignoring "%s"' % name)
         else:
-          print 'Cannot determine result type for "%s"' % name
+          print('Cannot determine result type for "%s"' % name)
       else:
         for result_type in result_types:
           add_matcher(result_type, name, args, comment)
     else:
-      print '*** Unparsable: "' + declaration + '" ***'
+      print('*** Unparsable: "' + declaration + '" ***')
 
 def sort_table(matcher_type, matcher_map):
   """Returns the sorted html table for the given row map."""