diff --git a/README.md b/README.md
index 45326c69e..cd8856828 100644
--- a/README.md
+++ b/README.md
@@ -545,7 +545,7 @@ The basic usage is not to set any template arguments when downloading a single f
  - `extractor` (string): Name of the extractor
  - `extractor_key` (string): Key name of the extractor
  - `epoch` (numeric): Unix epoch when creating the file
- - `autonumber` (numeric): Five-digit number that will be increased with each download, starting at zero
+ - `autonumber` (numeric): Number that will be increased with each download, starting at `--autonumber-start`
  - `playlist` (string): Name or id of the playlist that contains the video
  - `playlist_index` (numeric): Index of the video in the playlist padded with leading zeros according to the total length of the playlist
  - `playlist_id` (string): Playlist identifier
diff --git a/youtube_dl/downloader/http.py b/youtube_dl/downloader/http.py
index 6ef26548d..96379caf1 100644
--- a/youtube_dl/downloader/http.py
+++ b/youtube_dl/downloader/http.py
@@ -223,9 +223,10 @@ class HttpFD(FileDownloader):
 
             def retry(e):
                 to_stdout = ctx.tmpfilename == '-'
-                if not to_stdout:
-                    ctx.stream.close()
-                ctx.stream = None
+                if ctx.stream is not None:
+                    if not to_stdout:
+                        ctx.stream.close()
+                    ctx.stream = None
                 ctx.resume_len = byte_counter if to_stdout else os.path.getsize(encodeFilename(ctx.tmpfilename))
                 raise RetryDownload(e)
 
@@ -240,7 +241,7 @@ class HttpFD(FileDownloader):
                 except socket.error as e:
                     # SSLError on python 2 (inherits socket.error) may have
                     # no errno set but this error message
-                    if e.errno in (errno.ECONNRESET, errno.ETIMEDOUT) or getattr(e, 'message') == 'The read operation timed out':
+                    if e.errno in (errno.ECONNRESET, errno.ETIMEDOUT) or getattr(e, 'message', None) == 'The read operation timed out':
                         retry(e)
                     raise
 
diff --git a/youtube_dl/extractor/expressen.py b/youtube_dl/extractor/expressen.py
index f79365038..dc8b855d2 100644
--- a/youtube_dl/extractor/expressen.py
+++ b/youtube_dl/extractor/expressen.py
@@ -15,7 +15,7 @@ from ..utils import (
 class ExpressenIE(InfoExtractor):
     _VALID_URL = r'''(?x)
                     https?://
-                        (?:www\.)?expressen\.se/
+                        (?:www\.)?(?:expressen|di)\.se/
                         (?:(?:tvspelare/video|videoplayer/embed)/)?
                         tv/(?:[^/]+/)*
                         (?P<id>[^/?#&]+)
@@ -42,13 +42,16 @@ class ExpressenIE(InfoExtractor):
     }, {
         'url': 'https://www.expressen.se/videoplayer/embed/tv/ditv/ekonomistudion/experterna-har-ar-fragorna-som-avgor-valet/?embed=true&external=true&autoplay=true&startVolume=0&partnerId=di',
         'only_matching': True,
+    }, {
+        'url': 'https://www.di.se/videoplayer/embed/tv/ditv/borsmorgon/implantica-rusar-70--under-borspremiaren-hor-styrelsemedlemmen/?embed=true&external=true&autoplay=true&startVolume=0&partnerId=di',
+        'only_matching': True,
     }]
 
     @staticmethod
     def _extract_urls(webpage):
         return [
             mobj.group('url') for mobj in re.finditer(
-                r'<iframe[^>]+\bsrc=(["\'])(?P<url>(?:https?:)?//(?:www\.)?expressen\.se/(?:tvspelare/video|videoplayer/embed)/tv/.+?)\1',
+                r'<iframe[^>]+\bsrc=(["\'])(?P<url>(?:https?:)?//(?:www\.)?(?:expressen|di)\.se/(?:tvspelare/video|videoplayer/embed)/tv/.+?)\1',
                 webpage)]
 
     def _real_extract(self, url):
diff --git a/youtube_dl/extractor/iprima.py b/youtube_dl/extractor/iprima.py
index 53a550c11..648ae6741 100644
--- a/youtube_dl/extractor/iprima.py
+++ b/youtube_dl/extractor/iprima.py
@@ -86,7 +86,8 @@ class IPrimaIE(InfoExtractor):
             (r'<iframe[^>]+\bsrc=["\'](?:https?:)?//(?:api\.play-backend\.iprima\.cz/prehravac/embedded|prima\.iprima\.cz/[^/]+/[^/]+)\?.*?\bid=(p\d+)',
              r'data-product="([^"]+)">',
              r'id=["\']player-(p\d+)"',
-             r'playerId\s*:\s*["\']player-(p\d+)'),
+             r'playerId\s*:\s*["\']player-(p\d+)',
+             r'\bvideos\s*=\s*["\'](p\d+)'),
             webpage, 'real id')
 
         playerpage = self._download_webpage(