remove print statements from library code

Change the library code that reads the deliverable files so it does not
print what it is doing, to make it more useful as part of a command line
program.

Change-Id: Ib44eb890f2066a666830a0983e4f286531883d52
Signed-off-by: Doug Hellmann <doug@doughellmann.com>

openstack_releases/deliverable.py

@@ -14,8 +14,6 @@
 """Class for manipulating all of the deliverable data.
 """
 
-from __future__ import print_function
-
 import collections
 import glob
 import os
@@ -34,7 +32,7 @@ def _safe_semver(v):
     don't quite match the input.
 
     """
-    orig = v = str(v)
+    v = str(v)
     # Remove "v" prefixes.
     v = v.lstrip('v')
     # Remove any stray "." at the start or end, after the other
@@ -51,8 +49,6 @@ def _safe_semver(v):
         else:
             parts = parts[:3]
         v = '.'.join(parts)
-    if v != orig:
-        print('  changed version %r to %r' % (orig, v))
     return pbr.version.SemanticVersion.from_pip_string(v)
 
 
@@ -91,8 +87,6 @@ def _collapse_deliverable_history(name, info):
                 # is a pre-release.
                 final = parsed_vers.brief_string()
                 if final in known_versions:
-                    print('[deliverables] ignoring %s %s' %
-                          (name, r['version']))
                     continue
                 releases.append(r)
                 known_versions.add(r['version'])
@@ -121,7 +115,6 @@ class Deliverables(object):
     def _load_deliverable_files(self, root_dir):
         deliverable_files = glob.glob(os.path.join(root_dir, '*/*.yaml'))
         for filename in sorted(deliverable_files):
-            print('[deliverables] reading %s' % filename)
             series = self._series_from_filename(filename)
             deliverable = self._deliverable_from_filename(filename)
             with open(filename, 'r') as f: