Check the python scripts and find the cause of the raise of exception. Good luck.
Cheers -----Original Message----- From: tutor-bounces+microcore=yahoo.com...@python.org [mailto:tutor-bounces+microcore=yahoo.com...@python.org] On Behalf Of tutor-requ...@python.org Sent: Monday, January 24, 2011 7:33 AM To: tutor@python.org Subject: Tutor Digest, Vol 83, Issue 100 Send Tutor mailing list submissions to tutor@python.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.python.org/mailman/listinfo/tutor or, via email, send a message with subject or body 'help' to tutor-requ...@python.org You can reach the person managing the list at tutor-ow...@python.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Tutor digest..." Today's Topics: 1. Re: What is a semantic error? (Richard D. Moores) 2. PDF to TXT (Robert Berman) 3. Re: Telephone app (David Hutto) 4. Re: Telephone app (Walter Prins) 5. Re: Telephone app (bob gailer) 6. Re: Telephone app (Steven D'Aprano) ---------------------------------------------------------------------- Message: 1 Date: Sun, 23 Jan 2011 11:24:27 -0800 From: "Richard D. Moores" <rdmoo...@gmail.com> To: Tutor List <tutor@python.org> Subject: Re: [Tutor] What is a semantic error? Message-ID: <AANLkTikokvgUkjMV-=kBib10ZKCZkRFDK_c3Kv=ja...@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Thanks, Tutors, for the excellent replies. I think I've got it now. Dick ------------------------------ Message: 2 Date: Sun, 23 Jan 2011 11:56:14 -0500 From: Robert Berman <berma...@cfl.rr.com> To: Tutor@python.org Subject: [Tutor] PDF to TXT Message-ID: <1295801774.1653.11.camel@bermanrl-desktop> Content-Type: text/plain; charset="UTF-8" Hi, I am trying to convert .pdf files to .txt files. The script I am using below is mostly taken from research done on Google and it appears to be the one outline most consistently favored (http://code.activestate.com/recipes/577095-convert-pdf-to-plain-text/). I am using Win 7, Python 2.7.1. My code: #pdf2txt.py import sys import pyPdf import os def getPDFContent(path): content = "" # Load PDF into pyPDF pdf = pyPdf.PdfFileReader(file(path, "rb")) # Iterate pages for i in range(0, pdf.getNumPages()): # Extract text from page and add to content content += pdf.getPage(i).extractText() + " \n" # Collapse whitespace # content = u" ".join(content.replace(u"\xa0", u" ").strip().split()) return content def main(): pdf = sys.argv[1] filedir,filename = os.path.split(pdf) nameonly = os.path.splitext(filename) newname = nameonly[0] + ".txt" outtxt = os.path.join(filedir,newname) f = open(outtxt,'w') f.write(getPDFContent(pdf)) f.close() main() exit() ============================================================================ ================================== The program runs for a while and then dies while in one of the pypdf functions. The trace is below. Any insight into how to resolve this situation will be most appreciated. Thank you, Robert ============================================================================ =========================================== The trace I get is: decimal.InvalidOperation: Invalid literal for Decimal: '.' File "C:\Users\bermanrl\Projects\ScriptSearch\testdir\pdf2txt.py", line 28, in <module> main() File "C:\Users\bermanrl\Projects\ScriptSearch\testdir\pdf2txt.py", line 25, in main f.write(getPDFContent(pdf)) File "C:\Users\bermanrl\Projects\ScriptSearch\testdir\pdf2txt.py", line 13, in getPDFContent content += pdf.getPage(i).extractText() + " \n" File "C:\Python27\Lib\site-packages\pyPdf-1.13-py2.7-win32.egg\pyPdf \pdf.py", line 1381, in extractText content = ContentStream(content, self.pdf) File "C:\Python27\Lib\site-packages\pyPdf-1.13-py2.7-win32.egg\pyPdf \pdf.py", line 1464, in __init__ self.__parseContentStream(stream) File "C:\Python27\Lib\site-packages\pyPdf-1.13-py2.7-win32.egg\pyPdf \pdf.py", line 1503, in __parseContentStream operands.append(readObject(stream, None)) File "C:\Python27\Lib\site-packages\pyPdf-1.13-py2.7-win32.egg\pyPdf \generic.py", line 87, in readObject return NumberObject.readFromStream(stream) File "C:\Python27\Lib\site-packages\pyPdf-1.13-py2.7-win32.egg\pyPdf \generic.py", line 234, in readFromStream return FloatObject(name) File "C:\Python27\Lib\site-packages\pyPdf-1.13-py2.7-win32.egg\pyPdf \generic.py", line 207, in __new__ return decimal.Decimal.__new__(cls, str(value), context) File "C:\Python27\Lib\decimal.py", line 548, in __new__ "Invalid literal for Decimal: %r" % value) File "C:\Python27\Lib\decimal.py", line 3844, in _raise_error raise error(explanation) ------------------------------ Message: 3 Date: Sun, 23 Jan 2011 16:04:31 -0500 From: David Hutto <smokefl...@gmail.com> To: Alan Gauld <alan.ga...@btinternet.com> Cc: tutor@python.org Subject: Re: [Tutor] Telephone app Message-ID: <AANLkTi=sbcayndjbpqxtcuc7n8vgt9-9ov5ufjl68...@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 > Can you step back a bit and explain what it is you are trying to > accomplish? "flow through" and "functional flow through" are meaningless > terms in telecomms - at least so far as I am aware (after my 35 years in > telecomms engineering...) It's two fold. First is the obvious of conducting a call/receiving the caller id info. The second is to send directly to the phone, and transmit the caller id data. By flow through, I mean that the phone has one of 2 states(on the hook, off the hook), and three sub states(on the hook/off the hook in use/off the hook not in use). On the actual phone we pick up the receiver, or press the button on the cordless to receive, but the line is always connected, meaning it stops at the phone(terminal). I pick up the receiver, and transmit a series of specific tones which indicate the area code, trunk number and extension(if I remember this correctly, it's been a while since I studied the phone itself). So I have to receive the signal that the phone is ringing(then I'm assuming it sends the caller id info in between rings in some form)/or transmit a series of tones to them to connect. So I think my main question is what modules might be relevant to doing this? And should I be thinking of it any differently than a USB port which has 4 pins two data(+-), and two dc current(+-)? ------------------------------ Message: 4 Date: Sun, 23 Jan 2011 21:33:33 +0000 From: Walter Prins <wpr...@gmail.com> To: David Hutto <smokefl...@gmail.com> Cc: Alan Gauld <alan.ga...@btinternet.com>, tutor@python.org Subject: Re: [Tutor] Telephone app Message-ID: <AANLkTi=eaeqt1bl-ehjn-wnw-wx3bggwwnr6djmv1...@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" On 23 January 2011 21:04, David Hutto <smokefl...@gmail.com> wrote: > So I have to receive the signal that the phone is ringing(then I'm > assuming it sends the caller id info in between rings in some form)/or > transmit a series of tones to them to connect. > > So I think my main question is what modules might be relevant to doing > this? And should I be thinking of it any differently than a USB port > which has 4 pins two data(+-), and two dc current(+-)? > > I think you're thinking too low level, as alluded to by Alan this type of stuff is done via a voice-modem that you can directly control (via serial port) and get signals from e.g. using its command set. A common standard for about 3 decades has been the Hayes command set: http://en.wikipedia.org/wiki/Hayes_command_set As for control from Python - given that the modem would be present as a serial (COM port) device in the system, I'd have thought that (at worst) you'd be looking to use PySerial to interact with the modem. There may also be more targetted wrappers specifically wrapping modems (don't know, haven't looked). And as mentioned before, you can probably also use the more abstract interface provided by the operating system (TAPI stuff). And yes, USB is quite different from the POTS (Plain Old Telephone System). Forget any ideas that they're anywhere the same thing. Hope that helps. Walter -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/tutor/attachments/20110123/9e9cfc4a/attach ment-0001.html> ------------------------------ Message: 5 Date: Sun, 23 Jan 2011 17:41:39 -0500 From: bob gailer <bgai...@gmail.com> To: David Hutto <smokefl...@gmail.com> Cc: tutor@python.org Subject: Re: [Tutor] Telephone app Message-ID: <4d3caea3.60...@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 1/23/2011 4:04 PM, David Hutto wrote: Warning - do NOT connect a telco landline to a USB port. The line voltage when "on hook" is around 50 V and rises over 100 when ringing. That will certainly fry the port. There are expansion cards and other devices designed to connect to the landline and to a phone. They also process caller id and send touch tone signals. I've tried to follow your explanation. It is too vague for me to make sense of. I guess you want to take the line that comes to you from your local telco, stick something computer-wise between it and an ordinary analog phone, so the computer can receive and process the caller id from an incoming call, and also ensure that the caller id appears on the phone itself, and use the computer to dial numbers (NOT known as caller id). Correct so far? > It's two fold. First is the obvious of conducting a call/receiving the > caller id info. May be obvious to you, but not to me! To support your query please provide some kind of wiring diagram and define "conducting a call". > The second is to send directly to the phone, and transmit the caller id data. Again this is not very precise or clear. What do you want to send to the pone? > By flow through, I mean that the phone has one of 2 states(on the > hook, off the hook) I'm OK with that. > off the hook in use/off the hook not in use). That is not clear. > On the actual phone we pick up the receiver, or press the button on > the cordless to receive, but the line is always connected, meaning it > stops at the phone(terminal). I pick up the receiver, and transmit a > series of specific tones which indicate the area code, trunk number > and extension(if I remember this correctly, it's been a while since I > studied the phone itself). > > So I have to receive the signal that the phone is ringing(then I'm > assuming it sends the caller id info in between rings in some form)/or > transmit a series of tones to them to connect. Huh? > So I think my main question is what modules might be relevant to doing > this? As someone mentioned earlier - TAPI is your friend. > And should I be thinking of it any differently than a USB port > which has 4 pins two data(+-), and two dc current(+-)? As I warned above, YES. -- Bob Gailer 919-636-4239 Chapel Hill NC ------------------------------ Message: 6 Date: Mon, 24 Jan 2011 10:28:05 +1100 From: Steven D'Aprano <st...@pearwood.info> To: tutor@python.org Subject: Re: [Tutor] Telephone app Message-ID: <4d3cb985.3000...@pearwood.info> Content-Type: text/plain; charset=ISO-8859-1; format=flowed bob gailer wrote: > On 1/23/2011 4:04 PM, David Hutto wrote: [...] > I guess you want to take the line that comes to you from your local > telco, stick something computer-wise between it and an ordinary analog > phone, so the computer can receive and process the caller id from an > incoming call, and also ensure that the caller id appears on the phone > itself, and use the computer to dial numbers (NOT known as caller id). Folks, this question has nothing to do with Python and is off-topic for this list. Can you all take it off-list please? There are probably communities on the Internet or Usenet that are interested in low-level telecommunications protocols and devices. We don't go there to talk about Python, please don't stay here talking about their areas of expertise. Thank you. -- Steven ------------------------------ _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor End of Tutor Digest, Vol 83, Issue 100 ************************************** __________________________________________________ ¸Ï¿ì×¢²áÑÅ»¢³¬´óÈÝÁ¿Ãâ·ÑÓÊÏä? http://cn.mail.yahoo.com
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