Path: csiph.com!usenet.pasdenom.info!news.redatomik.org!newsfeed.xs4all.nl!newsfeed4a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!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 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'f.close()': 0.07; 'skip:/ 10': 0.07; 'arg': 0.09; 'identifier,': 0.09; 'int.': 0.09; 'thu': 0.09; 'typeerror:': 0.09; 'x86_64': 0.09; 'thread': 0.10; 'def': 0.14; 'argument': 0.15; 'result.': 0.15; '2014': 0.16; 'edt': 0.16; 'from:addr:mrabarnett.plus.com': 0.16; 'from:addr:python': 0.16; 'from:name:mrab': 0.16; 'message-id:@mrabarnett.plus.com': 0.16; 'received:192.168.1.4': 0.16; 'received:84.93': 0.16; 'received:84.93.230': 0.16; 'subject:program': 0.16; 'subprocess': 0.16; 't.start()': 0.16; 'threading': 0.16; 'uname': 0.16; 'wrote:': 0.16; 'skip:" 30': 0.20; 'trying': 0.22; 'subject:problem': 0.22; 'passing': 0.23; 'import': 0.24; 'header :In-Reply-To:1': 0.24; '(most': 0.24; 'header:User-Agent:1': 0.26; 'linux': 0.26; 'error': 0.27; 'callable': 0.29; 'starts': 0.29; 'print': 0.31; 'skip:s 30': 0.31; 'received:84': 0.32; 'getting': 0.33; 'traceback': 0.33; 'running': 0.34; 'file': 0.34; 'to:addr :python-list': 0.35; 'execution': 0.35; 'skip:o 20': 0.35; 'but': 0.36; 'should': 0.37; 'subject:: ': 0.37; 'skip:- 20': 0.37; 'to:addr:python.org': 0.39; 'received:192': 0.39; 'smp': 0.84 X-CM-Score: 0.00 X-CNFS-Analysis: v=2.1 cv=OoyysHLt c=1 sm=1 tr=0 a=0nF1XD0wxitMEM03M9B4ZQ==:117 a=0nF1XD0wxitMEM03M9B4ZQ==:17 a=0Bzu9jTXAAAA:8 a=QrohdLjRRo4A:10 a=IkcTkHD0fZMA:10 a=EBOSESyhAAAA:8 a=PDHGuUMrAAAA:8 a=tWrObIyxaiSE4VgD7vcA:9 a=QEXdDO2ut3YA:10 X-AUTH: mrabarnett@:2500 Date: Wed, 03 Jun 2015 21:59:47 +0100 From: MRAB User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Multiple thread program problem References: <5eba09c9-aadb-46d9-b644-8ba775d8b97a@googlegroups.com> In-Reply-To: <5eba09c9-aadb-46d9-b644-8ba775d8b97a@googlegroups.com> 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: 42 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1433365371 news.xs4all.nl 2908 [2001:888:2000:d::a6]:35152 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:91995 On 2015-06-03 21:41, Mohan Mohta wrote: > Hello > I am trying to create multiple thread through the below program but I am getting an error > > #! /usr/bin/python > import os > import subprocess > import thread > import threading > from thread import start_new_thread > > def proc(f) : > com1="ssh -B " > com2=line.strip('\n') > com3= " uname -a" > co=str("ssh -B ")+ str(com2) + str(" uname -a") > subprocess.call(co,shell=True) > print "----------------------------" > return > > f = open('/tmp/python/1') > for line in f: > t=thread.start_new_thread(proc(f),()) > t.start() > f.close() > c = raw_input(" Type anything to quit") > > > Execution output: > Linux abc.myhomenetwork.com 2.6.18-348.25.1.el5 #1 SMP Thu Apr 10 06:32:45 EDT 2014 x86_64 x86_64 x86_64 GNU/Linux > ---------------------------- > Traceback (most recent call last): > File "./readfile1.py", line 19, in > t=thread.start_new_thread(proc(f),()) > TypeError: first arg must be callable > The first argument should be the function. You're calling proc(f) and the passing its result. Also, start_new_thread starts the thread running immediately and returns its identifier, an int.