[Tutor] Seek suggestions for script for looking up extensions using C:\>assoc
Python 3.1; Windows Vista. I just ran C:\>assoc and was amazed to see 658 associations roll by. Here's the top of the list: .001=jZip.file .386=vxdfile .3g2=QuickTime.3g2 .3gp=QuickTime.3gp .3gp2=QuickTime.3gp2 .3gpp=QuickTime.3gpp .7Z=jZip.file .aa=NeroShowTime.Files9.aa .aac=QuickTime.aac .ac3=QuickTime.ac3 .aca=Agent.Character.2 .acf=Agent.Character.2 .acl=ACLFile .acr=IrfanView.DCM .acrobatsecuritysettings=AcroExch.acrobatsecuritysettings .acs=Agent.Character2.2 .acsm=Adobe.ACSMessage .AddIn=VCExpress.AddIn.9.0 .adts=QuickTime.adts .aif=IrfanView.aif .aifc=WMP11.AssocFile.AIFF .aiff=WMP11.AssocFile.AIFF .air=AIR.InstallerPackage I thought it would be convenient to have a Python script I could use to look up unfamiliar file extensions. I assume one is possible, but have no idea where to start, and would appreciate hints and suggestions. Thanks, Dick Moores ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Seek suggestions for script for looking up extensions usingC:\>assoc
You wouldn't gain much with a Pyton script. You can specify the extension with "assoc". Try "assoc .zip". But if you want to try it anyway, look at the "popen2" module (depreciated) or the "subprocess" module to extract the data and assign it to a variable that you can parse any way you like. - Original Message - From: "Richard D. Moores" To: Sent: Friday, August 06, 2010 6:11 AM Subject: [Tutor] Seek suggestions for script for looking up extensions usingC:\>assoc Python 3.1; Windows Vista. I just ran C:\>assoc and was amazed to see 658 associations roll by. Here's the top of the list: .001=jZip.file .386=vxdfile .3g2=QuickTime.3g2 .3gp=QuickTime.3gp .3gp2=QuickTime.3gp2 .3gpp=QuickTime.3gpp .7Z=jZip.file .aa=NeroShowTime.Files9.aa .aac=QuickTime.aac .ac3=QuickTime.ac3 .aca=Agent.Character.2 .acf=Agent.Character.2 .acl=ACLFile .acr=IrfanView.DCM .acrobatsecuritysettings=AcroExch.acrobatsecuritysettings .acs=Agent.Character2.2 .acsm=Adobe.ACSMessage .AddIn=VCExpress.AddIn.9.0 .adts=QuickTime.adts .aif=IrfanView.aif .aifc=WMP11.AssocFile.AIFF .aiff=WMP11.AssocFile.AIFF .air=AIR.InstallerPackage I thought it would be convenient to have a Python script I could use to look up unfamiliar file extensions. I assume one is possible, but have no idea where to start, and would appreciate hints and suggestions. Thanks, Dick Moores ___ 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] Seek suggestions for script for looking up extensions usingC:\>assoc
On Fri, Aug 6, 2010 at 07:56, wrote: > > You wouldn't gain much with a Pyton script. You can specify the extension > with "assoc". > > Try "assoc .zip". > > But if you want to try it anyway, look at the "popen2" module (depreciated) > or the "subprocess" module to extract the data and assign it to a variable > that you can parse any way you like. Thanks! I think I will try it anyway, and am already reading the doc for the subprocess module. (Someone -- not this Tutoree -- is going to remind you not to top post.) Dick ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Idea for a 'Weekly Python Tips' mailing list
Hi all. I'm a long time Pythonista and co-founder of http://ShowMeDo.com/ (and author of 140 of the Python tutorials there), I'm here with an idea... Recently I've started to follow a couple of email lists that send me regular tip emails, I've found them to be rather nice - an easy to read tip that comes every week that I can digest when I'm ready and I can reference afterwards. I don't recall ever coming across a Python Learners tip series in this format and I'm guessing it would be well received. Could I get some feedback please? I've already planned a set of 10 weekly tips (each about 5 paragraphs of text plus code examples) covering a bunch of things that are useful for a new Python programmer. Some are about the 'right' way to write Python code, some introduce neat modules (like Excel, web scraping, processes), some show you how to do complex stuff (like 3D, web servers and faster mathematics) in just a few lines of Python. It would also be quite nice to wrap up some of the oft-asked Python Tutor questions into the tips (I always meant to create some ShowMeDo videos covering these problems but never had the time :-( ). Before proceeding I'd like to do a sanity check - has anyone done this already? I'd hate to re-invent the wheel! Assuming it hasn't been done - would *you* choose to subscribe to the list (it would be free, just an email, nothing complex and no spam/sillyness)? Just say 'yes' if so, that way I know there's an audience. If the interest is good then I'll extend the series of 10 and introduce some guest authors into the mix. Any takers? Ian. -- Ian Ozsvald (A.I. researcher, screencaster) i...@ianozsvald.com http://IanOzsvald.com http://MorConsulting.com/ http://blog.AICookbook.com/ http://TheScreencastingHandbook.com http://FivePoundApp.com/ http://twitter.com/IanOzsvald ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Idea for a 'Weekly Python Tips' mailing list
Your ideas are intriguing to me, and I wish to subscribe to your newsletter. Eric On Fri, Aug 6, 2010 at 11:19 AM, Ian Ozsvald wrote: > Hi all. I'm a long time Pythonista and co-founder of > http://ShowMeDo.com/ (and author of 140 of the Python tutorials > there), I'm here with an idea... > > Recently I've started to follow a couple of email lists that send me > regular tip emails, I've found them to be rather nice - an easy to > read tip that comes every week that I can digest when I'm ready and I > can reference afterwards. > > I don't recall ever coming across a Python Learners tip series in this > format and I'm guessing it would be well received. Could I get some > feedback please? > > I've already planned a set of 10 weekly tips (each about 5 paragraphs > of text plus code examples) covering a bunch of things that are useful > for a new Python programmer. Some are about the 'right' way to write > Python code, some introduce neat modules (like Excel, web scraping, > processes), some show you how to do complex stuff (like 3D, web > servers and faster mathematics) in just a few lines of Python. > > It would also be quite nice to wrap up some of the oft-asked Python > Tutor questions into the tips (I always meant to create some ShowMeDo > videos covering these problems but never had the time :-( ). > > Before proceeding I'd like to do a sanity check - has anyone done this > already? I'd hate to re-invent the wheel! > > Assuming it hasn't been done - would *you* choose to subscribe to the > list (it would be free, just an email, nothing complex and no > spam/sillyness)? Just say 'yes' if so, that way I know there's an > audience. > > If the interest is good then I'll extend the series of 10 and > introduce some guest authors into the mix. > > Any takers? > Ian. > > -- > Ian Ozsvald (A.I. researcher, screencaster) > i...@ianozsvald.com > > http://IanOzsvald.com > http://MorConsulting.com/ > http://blog.AICookbook.com/ > http://TheScreencastingHandbook.com > http://FivePoundApp.com/ > http://twitter.com/IanOzsvald > ___ > 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] Idea for a 'Weekly Python Tips' mailing list
On Fri, 6 Aug 2010 17:19:46 +0100, Ian Ozsvald wrote: Recently I've started to follow a couple of email lists that send me regular tip emails, I've found them to be rather nice - an easy to read tip that comes every week that I can digest when I'm ready and I can reference afterwards. In the main python list there is Python Weekly URL that summarizes the week's most interesting posts in c.l.py ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Distributing Python Code for Commercial Porpoises?
Yes, porpoises was a (old) pun. Back in Feb. I raised a question related to Subject. I just wanted to know if Python code could be compiled in some sense. Robert Berman pitched in with some help. Although I was making progress, I put it off for a future date. I really don't want to get into py2exe here, but am wondering if there are Python vendors who in some way sell their product in compiled form? My intent though is really not to produce a commercial product. My question relates to difficulty my partner and I have to exchanging py programs w/o him stumbling. I send him a py program written using Windows Python 2.5. He has the same. I've executed it IDLE and it works fine. He executes, and it squawks per my post here on finding a version #, showing his output. We need to make sure we are on the same playing ground with numpy and scipy. I don't think we are. He barely knows Python, but did, supposedly, a install of it, numpy and scipy from the same written direction I use. I think he mistakenly installed a different version of numpy. So how can we make sure we or anyone are on the same playing field? Perhaps we should resort to command like execution. I am not confident that using py2exe will solve this problem. Is there a Python tool that provides some thorough description of a Python installation? -- Wayne Watson (Watson Adventures, Prop., Nevada City, CA) (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet "An experiment is a question which science poses to Nature, and a measurement is the recording of Nature’s answer." -- Max Planck Web Page: ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Distributing Python Code for Commercial Porpoises?
It sounds like maybe you could use Enthought Python, which is a bundle of most of the popular numerical libraries by the scipy sponsors. Not free, however, there's a trial version. http://enthought.com/products/epd.php The problem of bundling stuff is a real thorny one and has been beaten to death many times in this list and elsewhere. It really doesn't solve the problem, anyway, if you want your friend to be able to play with and rerun the code. Another idea is to make a virtual machine that you can duplicate or even mail back and forth with just the stuff required. Then you'd need an OS license for it (or use a minimal Linux, like Arch or DSL, but you probably want to stick to the Windows platform, I'd guess.) Cheers On Friday 06 August 2010, Wayne Watson wrote: > Yes, porpoises was a (old) pun. > > Back in Feb. I raised a question related to Subject. I just wanted to > know if Python code could be compiled in some sense. Robert Berman > pitched in with some help. Although I was making progress, I put it off > for a future date. I really don't want to get into py2exe here, but am > wondering if there are Python vendors who in some way sell their product > in compiled form? > > My intent though is really not to produce a commercial product. My > question relates to difficulty my partner and I have to exchanging py > programs w/o him stumbling. I send him a py program written using > Windows Python 2.5. He has the same. I've executed it IDLE and it works > fine. He executes, and it squawks per my post here on finding a version > #, showing his output. We need to make sure we are on the same playing > ground with numpy and scipy. I don't think we are. He barely knows > Python, but did, supposedly, a install of it, numpy and scipy from the > same written direction I use. I think he mistakenly installed a > different version of numpy. So how can we make sure we or anyone are on > the same playing field? Perhaps we should resort to command like > execution. I am not confident that using py2exe will solve this problem. > Is there a Python tool that provides some thorough description of a > Python installation? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Distributing Python Code for Commercial Porpoises?
On 8/6/2010 10:51 AM Wayne Watson said... Yes, porpoises was a (old) pun. Back in Feb. I raised a question related to Subject. I just wanted to know if Python code could be compiled in some sense. Robert Berman pitched in with some help. Although I was making progress, I put it off for a future date. I really don't want to get into py2exe here, but am wondering if there are Python vendors who in some way sell their product in compiled form? I think you're making it harder. Go to your partners site, build an appropriate base environment, document and leave instructions on where to put new *.py modules you send him, run through it, and you're done. A little education will likely go a lot further than delving deeper into heavier technologies in an attempt to 'simplfy'. HTH, Emile ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Distributing Python Code for Commercial Porpoises?
"Wayne Watson" wrote programs w/o him stumbling. I send him a py program written using Windows Python 2.5. He has the same. I've executed it IDLE and it works fine. He executes, and it squawks IDLE is a development environment. Never, ever test final code in a development environment, test it as it should be run. Double click the file in explorer. Better still install a separate copy wherever the file will go on the target system - usually somewhere different to where you develop it - and run it there. same written direction I use. I think he mistakenly installed a different version of numpy. So how can we make sure we or anyone are on the same playing field? Perhaps we should resort to command like execution. You should definitely not run it from IDLE, that's inefficient and likely to hide errors. Run it from a command prompt or by double clicking in explorer, or create a shortcut on the desktop. To check the versions of your packages you could write a short test program that simply imports all needed modules and prints out the version info (if available) and file details xxx.__file__ You could even use the __file__ info to check the size of the files by using the os module functions. Is there a Python tool that provides some thorough description of a Python installation? I'm not aware of such but it should not be hard to check the basics. One of the best thins about Python is the high level of portability of programs across versions and OS. Its most likely a location or PATH setting 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] modify csv textfile
I have a pipe delimited text file with 5 columns which looks like this:
12345|some text|some more text|example125 oo3 3456|example32423
11223|more text|and more|example/73d 77665|example455667
12677|text|more|anotherexample 123|anotherexample45
What I want to output is:
12345|some text|some more text|example|example32423
11223|more text|and more|example|example455667
...
12677|text|more|anotherexample 123|anotherexample45
So column 4 is where the change occurs, but only if the beginning of the string
in column 4 =~ /^example/i # and it should be case insensitive
#!/usr/bin/env python
import csv
import re
filename = raw_input("Enter the filename to edit: ")
reader = csv.reader(open(filename, 'rb'), delimiter='|', quoting=csv.QUOTE_NONE)
for row in reader:
print row
I can print the file, I just need a little help searching and replacing the
column 4 data element.
Thanks
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Re: [Tutor] Distributing Python Code for Commercial Porpoises?
> > My intent though is really not to produce a commercial product. My question > relates to difficulty my partner and I have to exchanging py programs w/o > him stumbling. I send him a py program written using Windows Python 2.5. He > has the same. I've executed it IDLE and it works fine. He executes, and it > squawks per my post here on finding a version #, showing his output. We need > to make sure we are on the same playing ground with numpy and scipy. > > Why not try bundling your .py modules in a zip file and then importing the run modules from this zip file? In that way, the package integrity is ensured. You'd just have to ship your collaborator the zip archive and also make sure that both of you are running the same versions of numpy, scipy, python and other packages. http://docs.python.org/library/zipimport.html http://www.doughellmann.com/PyMOTW/zipimport/ Regards, Iyer ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Distributing Python Code for Commercial Porpoises?
> #, showing his output. We need to make sure we are on the same playing > ground with numpy and scipy. I don't think we are. He barely knows > Python, but did, supposedly, a install of it, numpy and scipy from the > same written direction I use. I think he mistakenly installed a > different version of numpy. So how can we make sure we or anyone are on > the same playing field? Both of you do this from IDLE: import numpy help(numpy) Read the version # at the end. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] modify csv textfile
On Sat, Aug 7, 2010 at 12:35 PM, TGW wrote:
> I have a pipe delimited text file with 5 columns which looks like this:
> 12345|some text|some more text|example125 oo3 3456|example32423
> 11223|more text|and more|example/73d 77665|example455667
> 12677|text|more|anotherexample 123|anotherexample45
>
> What I want to output is:
> 12345|some text|some more text|example|example32423
> 11223|more text|and more|example|example455667
> ...
> 12677|text|more|anotherexample 123|anotherexample45
>
> So column 4 is where the change occurs, but only if the beginning of the
> string in column 4 =~ /^example/i # and it should be case insensitive
So do it :)
> #!/usr/bin/env python
> import csv
> import re
>
> filename = raw_input("Enter the filename to edit: ")
>
> reader = csv.reader(open(filename, 'rb'), delimiter='|',
> quoting=csv.QUOTE_NONE)
> for row in reader:
> print row
>
>
> I can print the file, I just need a little help searching and replacing
the column 4 data element.
Use re.match to match the column.
Use csv.writer to write our a new csv file
based on the one you're reading, filtering
and modifying.
cheers
James
--
-- James Mills
--
-- "Problems are solved by method"
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