use 'str.partition()'

The (r)partition method is always faster then split() or any other
method that has been replaced in this commit.

gallery_dl/extractor/foolslide.py

@@ -76,11 +76,9 @@ class FoolslideChapterExtractor(Extractor):
         chapter, pos = text.extract(page, 'title="', '"', pos)
 
         chapter = text.unescape(chapter)
-        parts = chapter.split(":", maxsplit=1)
-        title = parts[1].strip() if len(parts) > 1 else ""
 
         self.data["manga"] = text.unescape(manga).strip()
-        self.data["title"] = title
+        self.data["title"] = chapter.partition(":")[2].strip()
         self.data["language"] = util.code_to_language(self.data["lang"])
         self.data["chapter_string"] = chapter
         return self.data

gallery_dl/extractor/gfycat.py

@@ -26,7 +26,7 @@ class GfycatExtractor(Extractor):
             key = fmt + "Url"
             if key in gfycat:
                 url = gfycat[key]
-                gfycat["extension"] = url[url.rfind(".")+1:]
+                gfycat["extension"] = url.rpartition(".")[2]
                 return url
 
     @staticmethod

gallery_dl/extractor/imgbox.py

@@ -54,11 +54,11 @@ class ImgboxGalleryExtractor(AsynchronousExtractor):
     def get_job_metadata(self, page):
         """Collect metadata for extractor-job"""
         title = text.extract(page, "<h1>", "</h1>")[0]
-        parts = title.rsplit(" - ", maxsplit=1)
+        title, _, count = title.rpartition(" - ")
         return {
             "gallery-key": self.key,
-            "title": text.unescape(parts[0]),
-            "count": parts[1][:-7],
+            "title": text.unescape(title),
+            "count": count[:-7],
         }
 
     def get_file_metadata(self, page):

gallery_dl/extractor/mangafox.py

@@ -60,7 +60,7 @@ class MangafoxChapterExtractor(AsynchronousExtractor):
         data["volume"] = match.group(2) or ""
         data["chapter"] = match.group(3)
         data["chapter-minor"] = match.group(4) or ""
-        data["manga"] = data["manga"].rsplit(maxsplit=1)[0]
+        data["manga"] = data["manga"].rpartition(" ")[0]
         return data
 
     def get_image_urls(self, page):

gallery_dl/extractor/mangapark.py

@@ -89,10 +89,9 @@ class MangaparkChapterExtractor(Extractor):
             (None        , 'target="_blank" href="', ''),
             ("count"     , 'page 1">1 / ', '<'),
         ), values=data)[0]
-        data["manga"], data["type"] = data["manga"].rsplit(" ", maxsplit=1)
+        data["manga"], _, data["type"] = data["manga"].rpartition(" ")
         data["manga"] = text.unescape(data["manga"])
-        pos = data["title"].find(": ")
-        data["title"] = data["title"][pos+2:] if pos != -1 else ""
+        data["title"] = data["title"].partition(": ")[2]
         return data
 
     @staticmethod

gallery_dl/extractor/pinterest.py

@@ -178,7 +178,7 @@ class PinterestAPI():
         data = response.json()
         if "data" not in data or data["data"] is None:
             try:
-                msg = data["message"].split(maxsplit=1)[0].lower()
+                msg = data["message"].partition(" ")[0].lower()
             except KeyError:
                 msg = ""
             raise exception.NotFoundError(msg)

gallery_dl/extractor/pixiv.py

@@ -82,7 +82,7 @@ class PixivExtractor(Extractor):
         url = work["image_urls"]["large"]
         work["num"] = ""
         work["url"] = url
-        work["extension"] = url[url.rfind(".")+1:]
+        work["extension"] = url.rpartition(".")[2]
         return work
 
     def parse_ugoira(self, data):