Bitbucket OAuth credentials aren't required.

bugwarrior/docs/services/bitbucket.rst

@@ -14,8 +14,6 @@ Here's an example of an Bitbucket target::
     bitbucket.username = ralphbean
     bitbucket.login = ralphbean
     bitbucket.password = mypassword
-    bitbucket.key = myOAuthkey
-    bitbucket.secret = myOAuthsecret
 
 The above example is the minimum required to import issues from
 Bitbucket.  You can also feel free to use any of the
@@ -31,7 +29,8 @@ there.
 
 As an alternative to password authentication, there is OAuth. To get a key and secret,
 go to the "OAuth" section of your profile settings and click "Add consumer". Set the
-"Callback URL" to ``https://localhost/`` and set the appropriate permissions. Note
+"Callback URL" to ``https://localhost/`` and set the appropriate permissions. Then
+assign your consumer's credentials to ``bitbucket.key`` and ``bitbucket.secret``. Note
 that you will have to provide a password (only) the first time you pull, so you may
 want to set ``bitbucket.password = @oracle:ask_password`` and run
 ``bugwarrior-pull --interactive`` on your next pull.