[Tutor] Generating/Parsing XML
hi,
i'm a bit stuck here. i have a code dict1.py that writes to an xml and another
script parsedict1.py to parse the content of the xml.
when i write it to the xml i wrote it as dictionary but since it can't accept
dict format i convert it to string.
below is output of the parsedict1.py when i print it out.
(None, '{1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6}')
(None, '{1: 2, 2: 4, 3: 6, 4: 8, 5: 10, 6: 12}')
Questions:
Why it shows as None and not LINK or Lanestat?
How can i modify the code to show LINK or Lanestat?
How can i extract the key in the dictionary since there are 2 elements only.
for eg: if i print a[1], it will show {1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6}.
i want to be able to extract info like this: Link [1] = 1, just like how it
is done in dictionary.
pls help to advise.
thanks
tcl
p/s: attached code for dict1.py, parsedict1.py, dict1.xml
dict1.py code:
import elementtree.ElementTree as ET
def port_status():
a=1
b=2
c=3
d=4
e=5
f=6
return (a,b,c,d,e,f)
call_port=port_status()
link_status={1:call_port[0], 2:call_port[1], 3:call_port[2], 4:call_port[3],
5:call_port[4], 6:call_port[5]}
lane_status={1:call_port[0]+1, 2:call_port[1]+2, 3:call_port[2]+3,
4:call_port[3]+4, 5:call_port[4]+5, 6:call_port[5]+6}
print link_status
print lane_status
###write to xml
root = ET.Element(Test)
head1 = ET.SubElement(root, Default_Config)
title = ET.SubElement(head1, LINK)
title.text = str(link_status)
title = ET.SubElement(head1, Lanestat)
title.text = str(lane_status)
tree = ET.ElementTree(root)
tree.write(C:\\Python25\\myscript\\cmm\\dict1.xml)
parsedict1.py code:
import elementtree.ElementTree as ET
tree = ET.parse(dict1.xml)
doc = tree.getroot()
for elem in doc.findall('Default_Config/LINK'):
#print elem.get('LINK'), elem.text
a=elem.get('LINK'), elem.text
print a
for elem in doc.findall('Default_Config/Lanestat'):
#print elem.get('LINK'), elem.text
a=elem.get('LINK'), elem.text
print a import elementtree.ElementTree as ET
def port_status():
a=1
b=2
c=3
d=4
e=5
f=6
return (a,b,c,d,e,f)
call_port=port_status()
link_status={1:call_port[0], 2:call_port[1], 3:call_port[2], 4:call_port[3],
5:call_port[4], 6:call_port[5]}
lane_status={1:call_port[0]+1, 2:call_port[1]+2, 3:call_port[2]+3,
4:call_port[3]+4, 5:call_port[4]+5, 6:call_port[5]+6}
print link_status
print lane_status
###write to xml
root = ET.Element(Test)
head1 = ET.SubElement(root, Default_Config)
title = ET.SubElement(head1, LINK)
title.text = str(link_status)
title = ET.SubElement(head1, Lanestat)
title.text = str(lane_status)
tree = ET.ElementTree(root)
tree.write(C:\\Python25\\myscript\\cmm\\dict1.xml)
TestDefault_ConfigLINK{1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6}/LINKLanestat{1: 2, 2: 4, 3: 6, 4: 8, 5: 10, 6: 12}/Lanestat/Default_Config/Test
This script works in parsing config file: dict1.xml
#import sys
import elementtree.ElementTree as ET
tree = ET.parse(dict1.xml)
doc = tree.getroot()
for elem in doc.findall('Default_Config/LINK'):
#print elem.get('LINK'), elem.text
a=elem.get('LINK'), elem.text
print a
for elem in doc.findall('Default_Config/Lanestat'):
#print elem.get('LINK'), elem.text
a=elem.get('LINK'), elem.text
print a
#sys.exit()
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Re: [Tutor] Import multiple lines of text into a variable
Sean Carolan scaro...@gmail.com wrote
The first two lines are redundant you only need the last one.
I should have clarified, the if line.startswith part was used to
break out of the previous for loop, which was used to import the
other, shorter strings.
Thats fair enough if you are doing something with those
shorter strings. But if not the whole loop is redundant,
you only need the split. Your original post did not mention
any processing of the earlier lines.
But even if you were you could still use the split() first
then process the first element in a loop and assign the
second element to your variable:
stuff, store = theFile.read().split('notes\n')
for line in stuff.split():
# process thing
That way there is no need for a break test.
HTH.,
--
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/
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Re: [Tutor] Converting files
thank you for all your valuable suggestions... but i want it to be converted using python code .. On Tue, Apr 12, 2011 at 2:38 AM, Evans Anyokwu onyx...@gmail.com wrote: I use Openoffice and it has an option to export your files to .pdf and lots of other file formats. It's a free download - and has all the usual Office applications... Search for 'OpenOffice' online. On Mon, Apr 11, 2011 at 9:48 PM, Alan Gauld alan.ga...@btinternet.comwrote: sunil tech sunil.tech...@gmail.com wrote is there any way to convert any file (eg: document files image files) to .pdf? if so, kindly share... Install a PDF print driver and then print the file to that printer. Set it to save as a file. Then if its printable you can get it as a PDF. You can do the same with postscript(and postscript drivers come with most OS). Then send the postscript file to Adobe's web site to get them to generate the PDF from postscript. (You can also download free convertors) Finally, and because this is a Python list, you could use a Python library and generate the file yourself - but while thats ok for your own data its a lot harder for many file types! HTH, -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Converting files
I don't know how to do it, but I'm 99% sure I have seen a something related in cherrypy pages, try googling cherrypy pdf generation or something similiar Good luck! El Mar, 12 de Abril de 2011, 10:02, sunil tech escribió: thank you for all your valuable suggestions... but i want it to be converted using python code .. On Tue, Apr 12, 2011 at 2:38 AM, Evans Anyokwu onyx...@gmail.com wrote: I use Openoffice and it has an option to export your files to .pdf and lots of other file formats. It's a free download - and has all the usual Office applications... Search for 'OpenOffice' online. On Mon, Apr 11, 2011 at 9:48 PM, Alan Gauld alan.ga...@btinternet.com wrote: sunil tech sunil.tech...@gmail.com wrote is there any way to convert any file (eg: document files image files) to .pdf? if so, kindly share... Install a PDF print driver and then print the file to that printer. Set it to save as a file. Then if its printable you can get it as a PDF. You can do the same with postscript(and postscript drivers come with most OS). Then send the postscript file to Adobe's web site to get them to generate the PDF from postscript. (You can also download free convertors) Finally, and because this is a Python list, you could use a Python library and generate the file yourself - but while thats ok for your own data its a lot harder for many file types! HTH, -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ andrés chandía P No imprima innecesariamente. ¡Cuide el medio ambiente! ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Converting files
this is the list for cherrypy cherrypy-users cherrypy-us...@googlegroups.com El Mar, 12 de Abril de 2011, 10:02, sunil tech escribió: thank you for all your valuable suggestions... but i want it to be converted using python code .. On Tue, Apr 12, 2011 at 2:38 AM, Evans Anyokwu onyx...@gmail.com wrote: I use Openoffice and it has an option to export your files to .pdf and lots of other file formats. It's a free download - and has all the usual Office applications... Search for 'OpenOffice' online. On Mon, Apr 11, 2011 at 9:48 PM, Alan Gauld alan.ga...@btinternet.com wrote: sunil tech sunil.tech...@gmail.com wrote is there any way to convert any file (eg: document files image files) to .pdf? if so, kindly share... Install a PDF print driver and then print the file to that printer. Set it to save as a file. Then if its printable you can get it as a PDF. You can do the same with postscript(and postscript drivers come with most OS). Then send the postscript file to Adobe's web site to get them to generate the PDF from postscript. (You can also download free convertors) Finally, and because this is a Python list, you could use a Python library and generate the file yourself - but while thats ok for your own data its a lot harder for many file types! HTH, -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ andrés chandía P No imprima innecesariamente. ¡Cuide el medio ambiente! ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Converting files
sunil tech wrote: Hi all... is there any way to convert any file (eg: document files image files) to .pdf? If the file is printable, print it to a PDF gateway that generates a PS or PDF file. If it is a Microsoft Office document, or similar, then install OpenOffice or LibreOffice and use it to convert to PDF. If it's not printable, then your question doesn't make sense. What would an ISO or EXE or ZIP file look like converted to PDF? But I wonder whether you bothered to google for python pdf first? The very first link is a comprehensive review of installing and using a PDF generator from Python. -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Import multiple lines of text into a variable
Sean Carolan wrote:
if line.startswith('notes'):
break
notes = open('myfile','r').read().split(notes:\n')[1]
The first two lines are redundant you only need the last one.
I should have clarified, the if line.startswith part was used to
break out of the previous for loop, which was used to import the
other, shorter strings.
Just for reference, import has special meaning in Python, and you hurt
my brain by using it as a synonym for read.
For what it's worth, here's my solution. Rather than use the funky new
open files are iterable feature, go back to the old-style way of
reading line by line:
# untested
fp = open(myfile.txt)
for while True:
line = fp.readline() # read one line
if not line:
# nothing left to read
break
if ham in line:
process_ham(line) # Mmmm, processed ham...
if spam in line:
process_spam(line)
if line.startswith(notes):
notes = fp.read() # reads the rest of the file
fp.close()
Note that it is okay to mix calls to read() and readline(), but it is
NOT okay to mix iteration over a file with calls to read() or readline().
--
Steven
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[Tutor] Print images links
Hello, I would like to print the adresses of every image that are on the main page of www.columbia.edu. Do you know how to do this? Thanks Sent from my BlackBerry® on the MetroPCS Network ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Retrieve data
Hello everyone, I would to retrieve data, and especially the temperature and the weather from http://www.nytimes.com/weather. And I don't know how to do so. Thank you, Louis Sent from my BlackBerry® on the MetroPCS Network ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Print images links
On Tue, Apr 12, 2011 at 5:40 PM, l.leicht...@gmail.com wrote: Hello, I would like to print the adresses of every image that are on the main page of www.columbia.edu. Do you know how to do this? Yes, I do. ;) As this sounds like homework - Firstly, you want to grab the source code of the webpage. Secondly, you want to find what defines each image link - I'll give you a clue, think of HTML markup for images. Thirdly, use a regex to extract the link and either print it directly, or put it into something you can reuse later. Hope this helps. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Print images links
I would use urllib2 with Python (for 2.x) plus some regular expressions. Ramit Ramit Prasad | JPMorgan Chase Investment Bank | Currencies Technology 712 Main Street | Houston, TX 77002 work phone: 713 - 216 - 5423 -Original Message- From: tutor-bounces+ramit.prasad=jpmchase@python.org [mailto:tutor-bounces+ramit.prasad=jpmchase@python.org] On Behalf Of l.leicht...@gmail.com Sent: Tuesday, April 12, 2011 11:41 AM To: tutor@python.org; tutor-boun...@python.org Subject: [Tutor] Print images links Hello, I would like to print the adresses of every image that are on the main page of www.columbia.edu. Do you know how to do this? Thanks Sent from my BlackBerry(r) on the MetroPCS Network ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor This communication is for informational purposes only. It is not intended as an offer or solicitation for the purchase or sale of any financial instrument or as an official confirmation of any transaction. All market prices, data and other information are not warranted as to completeness or accuracy and are subject to change without notice. Any comments or statements made herein do not necessarily reflect those of JPMorgan Chase Co., its subsidiaries and affiliates. This transmission may contain information that is privileged, confidential, legally privileged, and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. Although this transmission and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by JPMorgan Chase Co., its subsidiaries and affiliates, as applicable, for any loss or damage arising in any way from its use. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. Please refer to http://www.jpmorgan.com/pages/disclosures for disclosures relating to European legal entities. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Retrieve data
You cand use urllib to connect that web page and then use a custom html parser to get exactly what you want, even I think you could use regex; just look source code from the webpage, check for the data you are interested in and get it. 2011/4/12 l.leicht...@gmail.com Hello everyone, I would to retrieve data, and especially the temperature and the weather from http://www.nytimes.com/weather. And I don't know how to do so. Thank you, Louis Sent from my BlackBerry® on the MetroPCS Network ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Retrieve data
NYtimes has an API http://developer.nytimes.com/ http://developer.nytimes.com/No clue on how well it works or even if the weather is in the API. Looks like a lot of fluff, like comments and such. At any rate, maybe you can request they add weather to their API. On Tue, Apr 12, 2011 at 12:36 PM, l.leicht...@gmail.com wrote: Hello everyone, I would to retrieve data, and especially the temperature and the weather from http://www.nytimes.com/weather. And I don't know how to do so. Thank you, Louis Sent from my BlackBerry® on the MetroPCS Network ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Print images links
l.leicht...@gmail.com wrote: Hello, I would like to print the adresses of every image that are on the main page of www.columbia.edu. Do you know how to do this? Pretty much the same answer applies as for your previous question. -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Retrieve data
l.leicht...@gmail.com wrote: Hello everyone, I would to retrieve data, and especially the temperature and the weather from http://www.nytimes.com/weather. And I don't know how to do so. Consider whether the NY Times terms and conditions permit such automated scraping of their web site. Be careful you do not abuse their hospitality by hammering their web site unnecessarily (say, by checking the weather eighty times a minute). Consider whether they have a public API for downloading data directly. If so, use that. Otherwise: Use the urlib2 and urlib modules to download the raw HTML source of the page you are interested in. You may need to use them to login, to set cookies, set the referer [sic], submit data via forms, change the user-agent... it's a PITA. Better to use an API if the web site offers one. Use the htmllib module to parse the source looking for the information you are after. If their HTML is crap, as it so often is with commercial websites that should know better, download and install BeautifulSoup, and use that for parsing the HTML. Don't be tempted to use regexes for parsing the HTML. That is the wrong solution. Regexes *seem* like a good idea for parsing HTML, and for simple tasks they are quick to program, but they invariably end up being ten times as much work as a proper HTML parser. If the content you are after requires Javascript, you're probably out of luck. -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
