Added retry; should work now

README.md

@@ -1,3 +1,9 @@
 # 4kwallpapers-scraper
 
 A Python script to scrape wallpapers from https://4kwallpapers.com/.
+
+## Usage
+The program takes a single command line argument, namely the root folder of
+whre you want all the pictures to go. It'll create sub-folders for all the
+categories, and download all pictures in one go. Yes, this can take a while
+(15m in my case, with a fast internet connection).

scraper.py

@@ -19,11 +19,14 @@ class PageHandler:
     def url(self):
         return urlunsplit(("https", self.domain, self.path, "", ""))
 
-    def get(self, path="", query="", soup=True):
+    def get(self, path="", query="", soup=True, max_tries=5):
         r = requests.get(self.relative_url(path, query), allow_redirects=True)
 
-        if r.status_code != 200:
-            raise requests.exceptions.RequestException()
+        if r.status_code >= 400 and max_tries > 0:
+            return self.get(path, query, soup, max_tries - 1)
+
+        elif r.status_code != 200:
+            raise requests.exceptions.RequestError()
 
         if soup:
             return BeautifulSoup(r.content, "html.parser")
@@ -114,7 +117,7 @@ class Category(PageHandler):
         return self._images
 
     def download(self, dir_path):
-        dir_path = os.path.join(dir_path, self.name)
+        dir_path = os.path.join(dir_path, self.name.replace("/", "-"))
 
         os.makedirs(dir_path, exist_ok=True)