Path: csiph.com!usenet.pasdenom.info!news.redatomik.org!newsfeed.xs4all.nl!newsfeed4a.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.030 X-Spam-Evidence: '*H*': 0.94; '*S*': 0.00; 'else:': 0.03; 'none:': 0.07; 'below).': 0.09; 'parameter': 0.09; 'subject:module': 0.09; 'def': 0.12; 'stdout': 0.16; 'subject:generator': 0.16; 'typo': 0.16; 'header:User-Agent:1': 0.23; '(see': 0.26; 'up.': 0.33; 'skip:_ 10': 0.34; 'skip:u 20': 0.35; 'yield': 0.36; 'being': 0.38; 'thank': 0.38; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'new': 0.61; 'header:Reply-To:1': 0.67; 'response.': 0.68; 'received:gq1.yahoo.com': 0.68; 'received:mail.gq1.yahoo.com': 0.68; 'reply-to:no real name:2**0': 0.71; 'received:bullet.mail.gq1.yahoo.com': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sbcglobal.net; s=s2048; t=1431561286; bh=UMSYIZL6IMIVIVts8RXIgbUbsghZZNd0Ptzd18LPFiM=; h=Date:From:Reply-To:To:Subject:From:Subject; b=saYnZl054XeWgxx5jjly70OvD2tBouhV1gPsCaxSZIA23EYhTnms8g5B7XnOT9GX6LDmHc+etua7jJ5JeFvp9t69EOL0KjqKy1ydsbZGAvcxodiuZENtDEQX8sjleFWXyEIvLl3swRZQlaZ7G11EAhWtOroIfSiWJn0OlA3sZZYI/tzgb2vFpsYDHZvRj0CAK1HShN6OI1hsigUqyKVUvXH6XEqrW2yMYIICM3YvZKTMTGSG3I/JCxUAZUzaFAuld4LXEb2jM0gssRHrxpb1UM1eduDLFILJU76xHIm3tCAM8+wbrlWexn4sW8kLrkqJG2IBGf2cLINk4xwwJ55rYA== X-Yahoo-Newman-Id: 958859.1537.bm@smtp118.sbc.mail.ne1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: 0_xpDq0VM1k7MTJ4PGLgEtq8cORB8NT9t2cZ0x0EAn3vRQP KVmUklZR.5htE3_usOjfE9aUK.xjt6j7J7Vy1jXcOS4YLU8VAMSgBXL7U8zF j0hRNzxbEOmu9aFF6JJpbLB.Ob3B102lcJgDQ522xK_QixDlBUhBYDrCrAv5 w.Jj0cFZFhUxWyYH6.6lxP.sa.hdhqST1JUPMJUlf8ourquMTgC1t_4JirEM NvvjWoTz_ZIZxFF9U74Zh2mYHc5gDCq78OAbK41ZxcMKTmJNVu0AFEkrQj.o 3U5vumTtCienrPWGVYLV4GAT633.Jpid3vMRVHicuDZzmSMIhk5HJtw0inOU tWMq67mslLBvySl9zF.fML_91YaNEv5Nbk68V6SAdmWug0gYE1mQ7th7.HmK eG2n2m1r1OxF9axtFZSnG4QKLj1l.uYO_x3eqF6DTjPQe7hIqWMuqlLo8utK r1wTVHE.mj9KV4JDtvA23YvlcusAEbuYJHCoTEQTI.LKkIon6NBbESR2JB2. rpGTy8QyT_xPTYmysUd8viOnKc5ist4WaUJX6zkXJoCAALNRyVyg88pE8 X-Yahoo-SMTP: PcRdH1CswBDjJunwicc5apkCQkeGfezTDkgQJyBKPzChimw2 Date: Wed, 13 May 2015 19:54:43 -0400 From: Peter Reply-To: peter@psantoro.net User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: python-list@python.org Subject: use of subprocess module inside generator Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 22 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1431561493 news.xs4all.nl 2935 [2001:888:2000:d::a6]:33938 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:90591 Gary, Thank you for the response. I made a small typo in my original post, which you correctly picked up. My original generator actually did not have the stdout parameter (see below). Only the new generator has this parameter, as it's now being passed into the generator from the caller's execution of subprocess.check_output. def _raw_data(cl, *, opath=None, timeout=timeout): stdout = subprocess.check_output(cl, universal_newlines=True, timeout=timeout) if opath is None: for line in stdout.splitlines(): yield line.strip() else: with open(opath) as f: for line in f: yield line.strip() Peter