swh.lister.paging_lister: Improve lister's base class name

Also drop the SWH prefix as this is redundant.

swh/lister/core/paging_lister.py

@@ -9,7 +9,7 @@ from .lister_transports import SWHListerHttpTransport
 from .lister_base import SWHListerBase
 
 
-class SWHPagingLister(SWHListerBase):
+class PageByPageLister(SWHListerBase):
     """Lister* intermediate class for any service that follows the simple
        pagination page pattern.
 
@@ -126,11 +126,11 @@ class SWHPagingLister(SWHListerBase):
         self.db_session = self.mk_session()
 
 
-class SWHPagingHttpLister(SWHListerHttpTransport, SWHPagingLister):
+class PageByPageHttpLister(SWHListerHttpTransport, PageByPageLister):
     """Convenience class for ensuring right lookup and init order when
-       combining SWHPagingLister and SWHListerHttpTransport.
+       combining PageByPageLister and SWHListerHttpTransport.
 
     """
     def __init__(self, api_baseurl=None, override_config=None):
         SWHListerHttpTransport.__init__(self, api_baseurl=api_baseurl)
-        SWHPagingLister.__init__(self, override_config=override_config)
+        PageByPageLister.__init__(self, override_config=override_config)

swh/lister/core/tests/test_lister.py

@@ -24,7 +24,7 @@ class HttpListerTesterBase(abc.ABC):
     """Base testing class for subclasses of
 
            swh.lister.core.indexing_lister.SWHIndexingHttpLister.
-           swh.lister.core.paging_lister.SWHPagingHttpLister
+           swh.lister.core.paging_lister.PageByPageHttpLister
 
     See swh.lister.github.tests.test_gh_lister for an example of how
     to customize for a specific listing service.

swh/lister/gitlab/lister.py

@@ -6,11 +6,11 @@ import random
 import re
 import time
 
-from ..core.paging_lister import SWHPagingHttpLister
+from ..core.paging_lister import PageByPageHttpLister
 from .models import GitLabModel
 
 
-class GitLabLister(SWHPagingHttpLister):
+class GitLabLister(PageByPageHttpLister):
     # Template path expecting an integer that represents the page id
     PATH_TEMPLATE = '/projects?page=%d&order_by=id&sort=asc&simple=true'
     API_URL_INDEX_RE = re.compile(r'^.*/projects.*page=(\d+).*')