X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/684fbbb940adb6ea4043bc437e527888687a53da..bad87b6c6e31ea0056d795ca3e7aa81ceaad2291:/README.txt

diff --git a/README.txt b/README.txt
index 44cd534..974ea6e 100644
--- a/README.txt
+++ b/README.txt
@@ -481,9 +481,9 @@ Post-processing Options:
                                      either the path to the binary or its
                                      containing directory.
     --exec CMD                       Execute a command on the file after
-                                     downloading, similar to find's -exec
-                                     syntax. Example: --exec 'adb push {}
-                                     /sdcard/Music/ && rm {}'
+                                     downloading and post-processing, similar to
+                                     find's -exec syntax. Example: --exec 'adb
+                                     push {} /sdcard/Music/ && rm {}'
     --convert-subs FORMAT            Convert the subtitles to other format
                                      (currently supported: srt|ass|vtt|lrc)
 
@@ -960,8 +960,8 @@ that, remove the distribution's package, with a line like
 
 Afterwards, simply follow our manual installation instructions:
 
-    sudo wget https://yt-dl.org/latest/youtube-dl -O /usr/local/bin/youtube-dl
-    sudo chmod a+x /usr/local/bin/youtube-dl
+    sudo wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/local/bin/youtube-dl
+    sudo chmod a+rx /usr/local/bin/youtube-dl
     hash -r
 
 Again, from then on you'll be able to update with sudo youtube-dl -U.
@@ -1101,10 +1101,19 @@ above for how to update youtube-dl.
 HTTP Error 429: Too Many Requests or 402: Payment Required
 
 These two error codes indicate that the service is blocking your IP
-address because of overuse. Contact the service and ask them to unblock
-your IP address, or - if you have acquired a whitelisted IP address
-already - use the --proxy or --source-address options to select another
-IP address.
+address because of overuse. Usually this is a soft block meaning that
+you can gain access again after solving CAPTCHA. Just open a browser and
+solve a CAPTCHA the service suggests you and after that pass cookies to
+youtube-dl. Note that if your machine has multiple external IPs then you
+should also pass exactly the same IP you've used for solving CAPTCHA
+with --source-address. Also you may need to pass a User-Agent HTTP
+header of your browser with --user-agent.
+
+If this is not the case (no CAPTCHA suggested to solve by the service)
+then you can contact the service and ask them to unblock your IP
+address, or - if you have acquired a whitelisted IP address already -
+use the --proxy or --source-address options to select another IP
+address.
 
 SyntaxError: Non-ASCII character
 
@@ -1648,6 +1657,65 @@ Incorrect:
     'https://www.youtube.com/watch?v=FqZTN594JQw&list='
     'PLMYEtVRpaqY00V9W81Cwmzp6N6vZqfUKD4'
 
+Inline values
+
+Extracting variables is acceptable for reducing code duplication and
+improving readability of complex expressions. However, you should avoid
+extracting variables used only once and moving them to opposite parts of
+the extractor file, which makes reading the linear flow difficult.
+
+Example
+
+Correct:
+
+    title = self._html_search_regex(r'<title>([^<]+)</title>', webpage, 'title')
+
+Incorrect:
+
+    TITLE_RE = r'<title>([^<]+)</title>'
+    # ...some lines of code...
+    title = self._html_search_regex(TITLE_RE, webpage, 'title')
+
+Collapse fallbacks
+
+Multiple fallback values can quickly become unwieldy. Collapse multiple
+fallback values into a single expression via a list of patterns.
+
+Example
+
+Good:
+
+    description = self._html_search_meta(
+        ['og:description', 'description', 'twitter:description'],
+        webpage, 'description', default=None)
+
+Unwieldy:
+
+    description = (
+        self._og_search_description(webpage, default=None)
+        or self._html_search_meta('description', webpage, default=None)
+        or self._html_search_meta('twitter:description', webpage, default=None))
+
+Methods supporting list of patterns are: _search_regex,
+_html_search_regex, _og_search_property, _html_search_meta.
+
+Trailing parentheses
+
+Always move trailing parentheses after the last argument.
+
+Example
+
+Correct:
+
+        lambda x: x['ResultSet']['Result'][0]['VideoUrlSet']['VideoUrl'],
+        list)
+
+Incorrect:
+
+        lambda x: x['ResultSet']['Result'][0]['VideoUrlSet']['VideoUrl'],
+        list,
+    )
+
 Use convenience conversion and parsing functions
 
 Wrap all extracted numeric data into safe functions from