Issue 4970 - Document the library API of python-abp

abp/filters/render_script.py

Index: abp/filters/render_script.py
===================================================================
--- a/abp/filters/render_script.py
+++ b/abp/filters/render_script.py
@@ -8,24 +8,28 @@
 # Adblock Plus is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
 
+"""Command line script for rendering Adblock Plus filter lists."""
+
 import argparse
 import io
 import logging
 import sys
 
 from .sources import FSSource, TopSource, WebSource, NotFound
 from .renderer import render_filterlist, IncludeError, MissingHeader
 
+__all__ = ['main']
+
 
 def parse_args():
     parser = argparse.ArgumentParser(description='Render a filter list.')
     parser.add_argument(
         'infile', help='top level filter list fragment from which the '
         'rendering starts')
     parser.add_argument('outfile', help='output filter list file')
     parser.add_argument(