Issue #29349: Fix Python 2 syntax in documentation build code

Doc/tools/extensions/patchlevel.py

@@ -61,8 +61,8 @@ def get_version_info():
         return get_header_version_info('.')
     except (IOError, OSError):
         version, release = get_sys_version_info()
-        print >>sys.stderr, 'Can\'t get version info from Include/patchlevel.h, ' \
-              'using version of this interpreter (%s).' % release
+        print('Can\'t get version info from Include/patchlevel.h, ' \
+              'using version of this interpreter (%s).' % release, file=sys.stderr)
         return version, release
 
 if __name__ == '__main__':

Misc/NEWS

@@ -50,6 +50,11 @@ C API
   Py_BuildValue() were not available in limited API of version < 3.3 when
   PY_SSIZE_T_CLEAN is defined.
 
+Documentation
+-------------
+
+- Issue #29349: Fix Python 2 syntax in code for building the documentation.
+
 
 What's New in Python 3.5.3?
 ===========================