First Release Candidate for Version 4.1

Subdirs in profile folders were introduced with --highlights, and moving
:tagged posts there allows to further call instaloader as

instaloader [flags] */

(#154)

instaloader/__init__.py

@@ -1,7 +1,7 @@
 """Download pictures (or videos) along with their captions and other metadata from Instagram."""
 
 
-__version__ = '4.1a1'
+__version__ = '4.1rc1'
 
 
 try:

instaloader/instaloader.py

@@ -338,6 +338,12 @@ class Instaloader:
         :raises ConnectionException: If connection to Instagram failed."""
         self.context.login(user, passwd)
 
+    def format_filename(self, item: Union[Post, StoryItem], target: Optional[str] = None):
+        """Format filename of a :class:`Post` or :class:`StoryItem` according to ``filename-pattern`` parameter.
+
+        .. versionadded:: 4.1"""
+        return _PostPathFormatter(item).format(self.filename_pattern, target=target)
+
     def download_post(self, post: Post, target: str) -> bool:
         """
         Download everything associated with one instagram post node, i.e. picture, caption and video.
@@ -348,7 +354,7 @@ class Instaloader:
         """
 
         dirname = _PostPathFormatter(post).format(self.dirname_pattern, target=target)
-        filename = dirname + '/' + _PostPathFormatter(post).format(self.filename_pattern, target=target)
+        filename = dirname + '/' + self.format_filename(post, target=target)
         os.makedirs(os.path.dirname(filename), exist_ok=True)
 
         # Download the image(s) / video thumbnail and videos within sidecars if desired
@@ -473,7 +479,7 @@ class Instaloader:
 
         date_local = item.date_local
         dirname = _PostPathFormatter(item).format(self.dirname_pattern, target=target)
-        filename = dirname + '/' + _PostPathFormatter(item).format(self.filename_pattern, target=target)
+        filename = dirname + '/' + self.format_filename(item, target=target)
         os.makedirs(os.path.dirname(filename), exist_ok=True)
         downloaded = False
         if not item.is_video or self.download_video_thumbnails is True:
@@ -693,7 +699,7 @@ class Instaloader:
 
         .. versionadded:: 4.1"""
         if target is None:
-            target = profile.username + ':tagged'
+            target = profile.username + '/:tagged'
         self.context.log("Retrieving tagged posts for profile {}.".format(profile.username))
         count = 1
         for post in profile.get_tagged_posts():

instaloader/instaloadercontext.py

@@ -57,7 +57,7 @@ class InstaloaderContext:
         self.quiet = quiet
         self.max_connection_attempts = max_connection_attempts
         self._graphql_page_length = 50
-        self.graphql_count_per_slidingwindow = graphql_count_per_slidingwindow or 20
+        self.graphql_count_per_slidingwindow = graphql_count_per_slidingwindow or 200
         self._root_rhx_gis = None
 
         # error log, filled with error() and printed at the end of Instaloader.main()
@@ -69,6 +69,9 @@ class InstaloaderContext:
         # Can be set to True for testing, disables supression of InstaloaderContext._error_catcher
         self.raise_all_errors = False
 
+        # Cache profile from id (mapping from id to Profile)
+        self.profile_id_cache = dict()
+
     @contextmanager
     def anonymous_copy(self):
         session = self._session
@@ -218,7 +221,7 @@ class InstaloaderContext:
     def _sleep(self):
         """Sleep a short time if self.sleep is set. Called before each request to instagram.com."""
         if self.sleep:
-            time.sleep(min(random.expovariate(0.6), 5.0))
+            time.sleep(min(random.expovariate(0.7), 5.0))
 
     def get_json(self, path: str, params: Dict[str, Any], host: str = 'www.instagram.com',
                  session: Optional[requests.Session] = None, _attempt=1) -> Dict[str, Any]:

instaloader/structures.py

@@ -402,6 +402,8 @@ class Profile:
         :param profile_id: userid
         :raises: :class:`ProfileNotExistsException`, :class:`ProfileHasNoPicsException`
         """
+        if profile_id in context.profile_id_cache:
+            return context.profile_id_cache[profile_id]
         data = context.graphql_query("472f257a40c653c64c666ce877d59d2b",
                                      {'id': str(profile_id), 'first': 1},
                                      rhx_gis=context.root_rhx_gis)['data']['user']
@@ -415,7 +417,9 @@ class Profile:
                 raise ProfileHasNoPicsException("Profile with ID {0}: no pics found.".format(str(profile_id)))
             else:
                 raise LoginRequiredException("Login required to determine username (ID: " + str(profile_id) + ").")
-        return Post(context, data['edges'][0]['node']).owner_profile
+        profile = Post(context, data['edges'][0]['node']).owner_profile
+        context.profile_id_cache[profile_id] = profile
+        return profile
 
     def _asdict(self):
         json_node = self._node.copy()