On Sun, Sep 11, 2011 at 07:54:28PM -0700, Sagar Neve wrote:

I am new to the python and I need a small script to be written using threads which reads the specific files present in a directory and does some selections of lines and then write those lines into different files.

However the error I am getting is: AttributeError: 'NoneType' object has no attribute 'start'

[ ... ] Hi Sagar, this isn't the right place to post questions about how to use Python -- this is python-ideas, a list for discussing future changes to the language. Please go to http://mail.python.org/mailman/listinfo/python-list with future requests for help.

Here is the code. Can somebody please help me. This is very urgent.

...and note that your urgency is not ours, since you're not paying us! That having been said, at least one source of your problems is that 'getFiles' doesn't return a value. It's kind of hard to figure out what you want it to do; 'thr.start()' followed by 'thr.join()' immediately isn't going to result in much threading, unless there's more going on here than meets the eye. You might want to use something like thr = threading.Thread(target=getFiles) instead. See http://docs.python.org/library/threading.html#thread-objects And please ask future questions elsewhere. thanks! cheers, --titus

def getFiles(fname): fname=preprocessLogFileDir + "/" + fname print fname fin = open(fname, "r") line=fin.readline() print line .... # some extraction logic. fout = open("out-single-file/1xx_2xx_total", "w") fout.write(line) fout.close()

files=os.listdir(preprocessLogFileDir) cnt=1; for fname in files: print fname if fnmatch.fnmatch(fname,'*.log'): #and os.path.isfile(fname): thr = "thr" + str(cnt) print thr thr=getFiles(fname) thr.start() thr.join cnt = cnt + 1 else: print "\npreprocessLogFileDir/fname is either a directory or does not end with 'log'." print "Probabally not a pre-process file. Ignoring the file.\n\n" _______________________________________________ Python-ideas mailing list Python-ideas@python.org http://mail.python.org/mailman/listinfo/python-ideas

-- C. Titus Brown, ctb@msu.edu

On Sun, Sep 11, 2011 at 22:54, Sagar Neve <nevesagar@gmail.com> wrote:

Here is the code. Can somebody please help me. This is very urgent.

First off, python-ideas is not the right place to ask for programming help--it's for suggesting changes to the Python language itself. You will have better results posting to a help site like stackoverflow.com. In your case, it looks like you want to create a thread, but "thr = getFiles(fname)" is not doing that--it's just calling a function. You probably want to change this to "thr = threading.Thread(target=getFiles, args=(fname,))" -- Tim Lesher <tlesher@gmail.com>

On Sun, Sep 11, 2011 at 07:54:28PM -0700, Sagar Neve wrote:

I am new to the python and I need a small script to be written using threads which reads the specific files present in a directory and does some selections of lines and then write those lines into different files.

However the error I am getting is: AttributeError: 'NoneType' object has no attribute 'start'

[ ... ] Hi Sagar, this isn't the right place to post questions about how to use Python -- this is python-ideas, a list for discussing future changes to the language. Please go to http://mail.python.org/mailman/listinfo/python-list with future requests for help.

Here is the code. Can somebody please help me. This is very urgent.

...and note that your urgency is not ours, since you're not paying us! That having been said, at least one source of your problems is that 'getFiles' doesn't return a value. It's kind of hard to figure out what you want it to do; 'thr.start()' followed by 'thr.join()' immediately isn't going to result in much threading, unless there's more going on here than meets the eye. You might want to use something like thr = threading.Thread(target=getFiles) instead. See http://docs.python.org/library/threading.html#thread-objects And please ask future questions elsewhere. thanks! cheers, --titus

def getFiles(fname): fname=preprocessLogFileDir + "/" + fname print fname fin = open(fname, "r") line=fin.readline() print line .... # some extraction logic. fout = open("out-single-file/1xx_2xx_total", "w") fout.write(line) fout.close()

files=os.listdir(preprocessLogFileDir) cnt=1; for fname in files: print fname if fnmatch.fnmatch(fname,'*.log'): #and os.path.isfile(fname): thr = "thr" + str(cnt) print thr thr=getFiles(fname) thr.start() thr.join cnt = cnt + 1 else: print "\npreprocessLogFileDir/fname is either a directory or does not end with 'log'." print "Probabally not a pre-process file. Ignoring the file.\n\n" _______________________________________________ Python-ideas mailing list Python-ideas@python.org http://mail.python.org/mailman/listinfo/python-ideas

-- C. Titus Brown, ctb@msu.edu

On Sun, Sep 11, 2011 at 22:54, Sagar Neve <nevesagar@gmail.com> wrote:

Here is the code. Can somebody please help me. This is very urgent.

First off, python-ideas is not the right place to ask for programming help--it's for suggesting changes to the Python language itself. You will have better results posting to a help site like stackoverflow.com. In your case, it looks like you want to create a thread, but "thr = getFiles(fname)" is not doing that--it's just calling a function. You probably want to change this to "thr = threading.Thread(target=getFiles, args=(fname,))" -- Tim Lesher <tlesher@gmail.com>