Fixed exception message

bob/extension/scripts/new_version.py

@@ -47,7 +47,7 @@ def main(command_line_options = None):
   # assert the the version file is there
   version_file = 'version.txt'
   if not os.path.exists(version_file):
-    raise ValueError("Could not find the file '%s' containing the version number. Are you inside the root directory of your package?")
+    raise ValueError("Could not find the file '%s' containing the version number. Are you inside the root directory of your package?" % version_file)
 
   def run_commands(version, *calls):
     """Updates the version.txt to the given version and runs the given commands."""

bob/extension/test_scripts.py

@@ -18,10 +18,12 @@ def test_new_version():
   # test the script using the dry-run option (to avoid to actually tag and push code)
 
   # assert that it does not raise an exception, when both latest and stable version are specified
-  new_version(['--dry-run', '--stable-version', '20.7.0', '--latest-version', '20.8.0'])
+  if os.path.exists("version.txt"):
+    new_version(['--dry-run', '--stable-version', '20.7.0', '--latest-version', '20.8.0'])
 
   # assert that it does not raise an exception, when only the latest version is specified
-  new_version(['--dry-run', '--latest-version', '20.8.0'])
+  if os.path.exists("version.txt"):
+    new_version(['--dry-run', '--latest-version', '20.8.0'])
 
   # assert that it does raise an exception, when the latest version is too low
   nose.tools.assert_raises(ValueError, new_version, ['--dry-run', '--latest-version', '0.8.0'])