[kemonoparty] fix KeyError for empty files (#5368)

gallery_dl/extractor/kemonoparty.py

@@ -156,7 +156,7 @@ class KemonopartyExtractor(Extractor):
 
     def _file(self, post):
         file = post["file"]
-        if not file:
+        if not file or "path" not in file:
             return ()
         file["type"] = "file"
         return (file,)

gallery_dl/version.py

@@ -6,4 +6,4 @@
 # it under the terms of the GNU General Public License version 2 as
 # published by the Free Software Foundation.
 
-__version__ = "1.26.9"
+__version__ = "1.27.0-dev"

test/results/kemonoparty.py

@@ -248,6 +248,16 @@ __tests__ = (
     "published": "2022-07-29T21:12:11.483000",
 },
 
+{
+    "#url"     : "https://kemono.su/gumroad/user/3267960360326/post/jwwag",
+    "#comment" : "empty 'file' with no 'path' (#5368)",
+    "#category": ("", "kemonoparty", "gumroad"),
+    "#class"   : kemonoparty.KemonopartyPostExtractor,
+    "#count"   : 8,
+
+    "type"     : "attachment",
+},
+
 {
     "#url"     : "https://kemono.su/discord/server/488668827274444803#608504710906904576",
     "#category": ("", "kemonoparty", "discord"),