From 43afe2858870d140b2a133fda2a0cbbd642a3bfc Mon Sep 17 00:00:00 2001 From: Itay Brandes Date: Sat, 23 Nov 2013 10:22:18 +0200 Subject: [PATCH] Log to an external logger (fixes #1810) Sadly applications using youtube-dl's python sources can't directly access it's log stream. It's pretty much limited to stdout and stderr only. It should log to logging.Logger instance passed to YoutubeDL's params dictionary. --- youtube_dl/YoutubeDL.py | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/youtube_dl/YoutubeDL.py b/youtube_dl/YoutubeDL.py index beb7d0cd1..6729d53ad 100644 --- a/youtube_dl/YoutubeDL.py +++ b/youtube_dl/YoutubeDL.py @@ -97,6 +97,7 @@ class YoutubeDL(object): playlistend: Playlist item to end at. matchtitle: Download only matching titles. rejecttitle: Reject downloads for matching titles. + logger: Log messages to a logging.Logger instance. logtostderr: Log messages to stderr instead of stdout. writedescription: Write the video description to a .description file writeinfojson: Write the video description to a .info.json file @@ -192,7 +193,9 @@ class YoutubeDL(object): def to_screen(self, message, skip_eol=False): """Print message to stdout if not in quiet mode.""" - if not self.params.get('quiet', False): + if self.params.get('logger', False): + self.params['logger'].debug(message) + elif not self.params.get('quiet', False): terminator = [u'\n', u''][skip_eol] output = message + terminator write_string(output, self._screen_file) @@ -200,10 +203,13 @@ class YoutubeDL(object): def to_stderr(self, message): """Print message to stderr.""" assert type(message) == type(u'') - output = message + u'\n' - if 'b' in getattr(self._screen_file, 'mode', '') or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr - output = output.encode(preferredencoding()) - sys.stderr.write(output) + if self.params.get('logger', False): + self.params['logger'].error(message) + else: + output = message + u'\n' + if 'b' in getattr(self._screen_file, 'mode', '') or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr + output = output.encode(preferredencoding()) + sys.stderr.write(output) def to_console_title(self, message): if not self.params.get('consoletitle', False):