some fixes for docrep==0.2.6

Author: Chilipp

docs/conf.py

@@ -18,12 +18,15 @@
 import re
 import six
 import funcargparse
+import warnings
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 sys.path.insert(0, os.path.abspath(osp.dirname(__file__)))
 
+warnings.filterwarnings('ignore', 'To exit: use')
+
 # -- General configuration ------------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.
@@ -389,7 +392,7 @@
 
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {
-    'sphinx': ('http://sphinx-doc.org/', None),
+    'sphinx': ('http://www.sphinx-doc.org/en/stable/', None),
     'docrep': ('http://docrep.readthedocs.org/en/latest', None),
 }
 if six.PY3:

funcargparse/__init__.py

@@ -254,7 +254,8 @@ def setup(func):
 
             # create arguments
             args, varargs, varkw, defaults = inspect.getargspec(func)
-            full_doc = docstrings.dedents(inspect.getdoc(func))
+            doc = inspect.getdoc(func)
+            full_doc = docstrings.dedents(doc) if doc else ''
 
             summary = docstrings.get_full_description(full_doc)
             if summary:
@@ -384,8 +385,9 @@ def setup(func):
             name2use = name
             if name2use is None:
                 name2use = func.__name__.replace('_', '-')
+            doc = inspect.getdoc(func)
             kwargs.setdefault('help', docstrings.get_summary(
-                docstrings.dedents(inspect.getdoc(func))))
+                docstrings.dedents(doc) if doc else ''))
             parser = self._subparsers_action.add_parser(name2use, **kwargs)
             parser.setup_args(
                 func, setup_as=setup_as, insert_at=insert_at,