Path: csiph.com!au2pb.net!feeder.erje.net!1.eu.feeder.erje.net!newsfeed.freenet.ag!newsfeed.kamp.net!newsfeed.kamp.net!fu-berlin.de!uni-berlin.de!not-for-mail
From: Chris Angelico <rosuav@gmail.com>
Newsgroups: comp.lang.python
Subject: Re: Using subprocess to capture a progress line
Date: Wed, 11 Nov 2015 10:28:26 +1100
Lines: 21
Message-ID: <mailman.227.1447198109.16136.python-list@python.org>
References: <20151110224756.GA1944@mail.akwebsoft.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
X-Trace: news.uni-berlin.de CBF6ztKNcwxKBV2Qw4dzJAd3RdLrzHuoGpE7ZZsr7dsQ==
Return-Path: <rosuav@gmail.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.010
X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'python,': 0.02; 'received:209.85.223': 0.03; 'finished.': 0.07; 'wed,': 0.15; 'buffering': 0.16; 'carriage': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'wrote:': 0.16; '>>>': 0.20; '2015': 0.20; 'am,': 0.23; 'import': 0.24; 'implemented': 0.24; 'tim': 0.24; 'written': 0.24; 'header:In-Reply-To:1': 0.24; 'install': 0.25; "i've": 0.25; 'message-id:@mail.gmail.com': 0.27; 'executing': 0.27; 'command-line': 0.29; 'that.': 0.30; 'downloading': 0.33; 'received:google.com': 0.35; 'i.e.': 0.35; 'nov': 0.35; 'problem.': 0.35; 'but': 0.36; 'should': 0.36; 'received:209.85': 0.36; 'possible': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'johnson': 0.37; 'progress': 0.38; 'received:209': 0.38; 'reports': 0.38; 'skip:- 60': 0.39; 'to:addr:python.org': 0.40; 'times': 0.63; 'numerous': 0.66; 'sounds': 0.76; 'chrisa': 0.84; 'subject:Using': 0.84; 'skip:y 40': 0.93
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=4NitS/RcLEdsywQb7CCh4geR7QNZEt51rQXhf0NZBhY=; b=irT+K36MWE7VFBLksIpbCHYhcNc9fSbZVJrsurozz/tpF8w4fnTbdQk6ZN8ItUv7z2 suxWgRz5vmZowuK2XffsUeBVwN3BvZbd38bySGwdsYQkszfvHGRjH0HXxUQgONL7zoyy Nwqns5S5apoPzhrq5NrpK8pID5gTRsAsiVqjdJnEWPO9Tq0pHFib7VeftwZnvAXZ7iBL gOVi/ZlPwQLeLJJDPfnxzH3qZuTY1hCCw+BGxwi4leeplvVRfAJzd+YV1lhlIB1WnTtJ UxxWKjB9YijEAEhjoE39qX/tpQtNh/DuzBhNJMjxvmNlmT0kbrKYn/wsXgF6nI9oJHzs haiw==
X-Received: by 10.107.10.233 with SMTP id 102mr6449490iok.31.1447198107028; Tue, 10 Nov 2015 15:28:27 -0800 (PST)
In-Reply-To: <20151110224756.GA1944@mail.akwebsoft.com>
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.20+
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Xref: csiph.com comp.lang.python:98621

On Wed, Nov 11, 2015 at 9:47 AM, Tim Johnson <tim@akwebsoft.com> wrote:
> I've written a command-line "wrapper" for youtube-dl, executing
> youtube-dl as a subprocess.
>
> ------------------------------------------------------------------
> youtube-dl reports download progress on one line. I.E. the line is
> overwritten numerous times with no carriage return until the
> downloading is finished.
> ------------------------------------------------------------------
>

Sounds to me like a possible buffering problem. But since youtube-dl
is implemented in Python, you might find it easier to "pip install
youtube_dl" and work with the methods directly:

>>> import youtube_dl
>>> youtube_dl.YoutubeDL().download(["m39ydsOPSww"])

Should be possible to manipulate around the outside of that.

ChrisA