[Tutor] File upload from python shell
Hello!
How can I upload a file from python?
If it is a form to fill with values it's simple:
urlopen("http://site.com/action?key1=value1;key2=value2";) and I get the
form filled.
What about uploading a file programmaticaly?
Thank you
Paulino
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Re: [Tutor] File upload from python shell
Luke Paireepinart escreveu:
> Paulino wrote:
>> Hello!
>>
>>
>> How can I upload a file from python?
>>
>> If it is a form to fill with values it's simple:
>>
>>
>> urlopen("http://site.com/action?key1=value1;key2=value2";) and I get
>> the form filled.
>>
> Only if the form uses the GET method.
> If your file upload form used GET, you could upload your file like
> this as well (after base-64 encoding it.)
> I recommend reading the Wikipedia articles on GET and POST so you can
> know the difference.
>>
>> What about uploading a file programmaticaly?
>>
> file uploads usually use the POST method, not GET.
> they're generally the same thing as text or radiobutton form entries,
> except their input type is set to file,
> so that it's base-64 encoded so that there's no errors in transmission.
> basically you'll have to look at a few things:
> 1. how the POST method is structured.
> 2. Which keys your file-uploading page wants.
> 3. how to base-64 encode your file.
> 4. how to measure the length of all your keys and data so that you can
> set content-length header correctly.
> 5. how to submit this new http request properly.
>
> What are you trying to upload to?
> if it's ImageShack by any coincidence, I have some code that does that
> already.
> If it's something else, the code would probably be similar.
> Let me know if you want to take a look at that.
> -Luke
>
>
I want to upload pdf files, to an intranet server, that I also control.
Yes I think it would be very usefull to have a look at your code.
The urlopen function can take an optional data parameter that is used to
specify a POST request, but i couldn't find information about how to set
the data parameter properly.
Thank You
Paulino
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Re: [Tutor] File upload from python shell
Kent Johnson escreveu:
> Paulino wrote:
>> Hello!
>>
>>
>> How can I upload a file from python?
>>
>> If it is a form to fill with values it's simple:
>>
>>
>> urlopen("http://site.com/action?key1=value1;key2=value2";) and I get
>> the form filled.
>>
>>
>> What about uploading a file programmaticaly?
>
> This might help:
>
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/146306
>
> Kent
>
>
Thank You very much Luke, Alan, David and Kent.
I used Nokia's forum recipe (sugested by David) it's very simple and
works perfectly!
here is it (a few variables changed)
import httplib, urllib
import base64, os.path
def uploadToURL( aPath ):
# read the binary data of the pdf
data = open(aPath, 'rb').read()
# encoded it to base64
encodedData = base64.encodestring( data )
headers = { "Content-type": "application/x-www-form-urlencoded",
"Accept": "text/plain" }
params = urllib.urlencode({ 'filename': os.path.split(aPath)[1],
'file_data':encodedData})
conn = httplib.HTTPConnection( "localhost:8080" )
conn.request( "POST", "/rendas/rec/uploadtxt", params, headers )
response = conn.getresponse( )
# returns "True" or "False" if failed
print response.read( )
# status for debugging
#print response.status
conn.close( )
if __name__ == "__main__":
uploadToURL("/home/paulino/ola230.pdf")
And here is the turbogears server method that handles the file:
@expose()
def uploadtxt(self, file_data, **kw):
data = base64.decodestring(file_data)
f = open(kw['filename'], 'wb')
f.write(data)
f.close()
return "Success"
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Re: [Tutor] e-learning Python
Yes I'm looking for something more interactive, but didn't find anything yet. Lerning by one's self has it's limitations... [EMAIL PROTECTED] escreveu: Message: 1 Date: Tue, 26 Sep 2006 10:05:56 + (UTC) From: Andrei <[EMAIL PROTECTED]> Subject: Re: [Tutor] e-learning Python To: tutor@python.org Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=us-ascii PA sapo.pt> writes: Is there any site offering e-learning about Python? If not, the PSF should do it! If you mean if there are any online tutorials: lots of them. Here's a very large list: http://www.awaretek.com/tutorials.html Yours, Andrei Message: 3 Date: Tue, 26 Sep 2006 08:47:28 -0700 From: "Nathan Botts" <[EMAIL PROTECTED]> Subject: Re: [Tutor] e-learning Python (PA) To: Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="us-ascii" That might depend on what you consider eLearning. I've found that the "How to Think Like a Computer Scientist" (http://ibiblio.org/obp/thinkCS/python/english2e/html/index.html) online book is a great learning guide. Or are you looking for something more interactive? -Nathan ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] database web app, what tool?
Hi! Im a very biginner in programming and I started with python, witch I found much easier tahn i thought. I want to build an intranet page in my organization that shows some data from our financial aplication's database. For the starting point I would like it to show invoices lists per supplier and link each line to a pdf image of the selected invoice that is stored in a determined folder. The aim is only to make querys and show the results. No updates, nor insert's The database is MS SQL 2005 Right now I connect to the database via pymssql, and i can retrieve data and send it to a wx.Grid or to a reportlab pdf file, with platypus tables (a couple of months ago i would say i'd never be able to do it... and now i want to do more...) Now I want to send it to the browser so the administration can see it every time they need. What tool is more suitable? There are so many options! Zope-Plone have it's own web server, so less config is required. But i can't find any recipe or tutorial usefull for this task... there is also django, turbogears, webware, apache and mod-python..... Thank you Paulino ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] tkinter
Hi Abdullah! There is a kind of grid for tkinter that you can find online in the python cookbook, search for MultiListbox. But if you really want a spreadsheet like grid, you'd rather use wx.grid from wxPython. wxPython is much more powerfull than tkinter and is as easy to learn. You can find lots od doc's in www.wxpython.org. > Date: Mon, 9 Oct 2006 14:23:32 +0300 > From: "Abdullah Anar" <[EMAIL PROTECTED]> > Subject: [Tutor] tkinter > To: tutor@python.org > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="iso-8859-1" > > hello, > > We try to build new software using python and tkinter. We would like to > enter some fields using grid style. I mean we want to use rows to see old > entries and to enter new one. I hope I could explain, because it also is > not easy. I know there is grid to locate buttons, labels and something like > these. I hope I could explain I did not mean this grid which is using > instead of pack. > > we wonder if there is already some classes or widgets to do this. > > thanks for help from now > > Abdullah Anar > -- next part -- > An HTML attachment was scrubbed... > URL: > http://mail.python.org/pipermail/tutor/attachments/20061009/41a5ee23/attachment-0001.html > > > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Exception and sys.exit() in a cgi script
This is a peace of a CGI script i have. 1 import cgi 2 form=cgi.FieldStorage() 3 try : 4 ano=form["ano"].value 5 conta=form["conta"].value 6 except KeyError : 7 print 'Please enter values in the fields ' 8 sys.exit(0) When the excption occurs, no message is shown on the browser. If I run the script with IDLE, the message is printed and then the script exits. What's wrong here? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How to open file in Excel/Calc spreadsheet?
Very simple: os.startfile([file])
ex:
>>> import os
>>> os.startfile("d:\\documentos\\eleicoes2005-dn.xls")
It works with any file tipe in windows, the file is opened with it's associated application.
Basil Shubin wrote:
> Hi ,friends!
>
> How I can open Excel or OOCalc spreadsheet file 'remotely' from python
> programm? I mean how to execute Excel or Calc with appropriate
> spreadsheet file?
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Re: [Tutor] Exception and sys.exit() in a cgi script
Thank you, Yes I have other scripts working fine. The OS is WXP and the server is the python's CGIHTTPserver (for an intranet use only) - Hi Paulino, > This is a peace of a CGI script i have. > > 1 import cgi > 2 form=cgi.FieldStorage() > 3 try : > 4 ano=form["ano"].value > 5 conta=form["conta"].value > 6 except KeyError : > 7 print 'Please enter values in the > fields ' > 8 sys.exit(0) > > > When the excption occurs, no message is shown on the browser. Can you tell us a bit more about the set up? What OS? What web server? Can you get any other python CGI scripts running correctly? > If I run the script with IDLE, the message is printed and then the > script exits. The IDE environment is very different to a web server environment. You should only treat IDLE as a first approximation when developing Web scripts. You can use the OS prompt for a slightly better approximation provided you set some environment variables first, but ultimately you need to test on the web server you will be using. Alan G. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] CGIHTTPServer - redirect output to a log file
How can I redirect the output of an CGIHTTPServer from the console to a logfile? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] CGIHTTPServer - redirect output to a log file
well, I'm running this CGIserver on windows... Glenn T Norton escreveu: > Paulino wrote: > >> How can I redirect the output of an CGIHTTPServer from the console to >> a logfile? >> ___ >> Tutor maillist - Tutor@python.org >> http://mail.python.org/mailman/listinfo/tutor >> >> >> > You can start it from a shell script > #!/bin/sh > ./MyWebServer.py 2>>/path/to/output.log > > Good Luck, > Glenn > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Exception and sys.exit() in a cgi script
Mike Hansen Mike.Hansen at atmel.com Mon Oct 16 18:43:29 CEST 2006 > This is a peace of a CGI script i have. > > 1 import cgi > 2 form=cgi.FieldStorage() > 3 try : > 4 ano=form["ano"].value > 5 conta=form["conta"].value > 6 except KeyError : > 7 print 'Please enter values in the > fields ' > 8 sys.exit(0) > > > When the excption occurs, no message is shown on the browser. > > If I run the script with IDLE, the message is printed and then the > script exits. > > What's wrong here? > > > > ___ > Tutor maillist - Tutor at python.org > http://mail.python.org/mailman/listinfo/tutor > I'm catching up on the weekend's tutor messages. import cgitb; cgitb.enable() That spits errors to the web page which is great for debugging cgi scripts. I think you need print "Content-Type: text/html\n\n" http://docs.python.org/lib/cgi-intro.html http://docs.python.org/lib/node560.html Mike Thats not the point (sorry). when all the values are provided in the form (no excetion is raised) it runs as expected! The point is when one of the values "ano", "conta" is missing in the form, I want the error message to be shown on the browser, and the script to stop running. When there is an exception, the script actually stops running, but no message is sent to the browser. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Help me.. problem in building calculator application
> > Message: 7 > Date: Thu, 26 Oct 2006 13:31:37 +0100 > From: "Asrarahmed Kadri" <[EMAIL PROTECTED]> > Subject: [Tutor] Help me.. problem in building calculator application > To: pythontutor > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain; charset="iso-8859-1" > > Hi folks, > > I am trying to build a rudimentary calculator application using Tkinter... > > Hi, Asrar! Try this article instead: http://www.devshed.com/c/a/Python/Designing-a-Calculator-in-wxPython/ Paulino ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] cgi form field and popup window
paulino wrote: I would like to have a popup window to show the possible options to a form field (supplier ID) and that by clicking on the desired item, the field is automatically filled. The options are a database field values. I wonder if this is possible to do with python (point me some resources please), or have I to deal with _javascript_ ? The browser-side programming has to be in _javascript_. The server-side program that sends the _javascript_ and the list of options to the browser can be in Python. You might want to look at the TurboGears widget set which provides many browser-side widgets that are configured from Python. Widgets are part of TG 1.0. Unfortunately the docs seem to be a bit thin and sorting it all out is probably not a beginner project. http://www.turbogears.org/ http://tgwidgets.toscat.net/ Kent Many thanks, Kent, that’s what I was afraid of. Well an alternative would be to use a drop down box with all the suppliers ID’s as options - a few thousands, is it viable? But this way the user can not introduce manually any ID, he would be forced to pick one from the drop down box. In order to give users booth possibilities, I can put an input field and a drop down box that would be dealt by a try / except clause. what do you think? Paulino ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] How to kill an app from python on windows?
To launch an app one can state os.startfile('hello.pdf') and the file is
opened in acrobat .
And how can I kill the app from python, in order to, for instance,
rename the file?
Is it possible?
thanks
Paulino
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Re: [Tutor] How to kill an app from python on windows? (Tim Golden)
[EMAIL PROTECTED] escreveu: > >1. Re: How to kill an app from python on windows? (Tim Golden) > > > This link may get you started: > > http://effbot.org/pyfaq/how-do-i-emulate-os-kill-in-windows.htm > > although it may not apply, depending on the exact > circumstances of what you're doing. > > TJG > > > Thank you Tim, How do i get the pid of the process? Paulino ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Graphics with Python: wxPython vs. tkinter vs., PyCairo vs. PyX vs...
There is also PyQt4 which is my favorite. I'm a beginner in programming I tryed first PyQt and I gave up because it seemed so complicated. Then I've played a litle with tkinter which I think is very poor. I moved to wxpython which as a learning curve similar to that of tkinter, but a wider set of widgets available. Then o tryed again PyQt and it wasn't complicated anymore! PyQt as a even wider set of wigets than wxpy but the BIG advantage is QtDesigner which you can use to design your interfaces and then you only have to code the methods to the actions you want the widgets to perform. Good luck Paulino > Date: Wed, 17 Jan 2007 14:09:57 -0600 > From: "Vijay Pattisapu" <[EMAIL PROTECTED]> > Subject: [Tutor] Graphics with Python: wxPython vs. tkinter vs. > PyCairo vs. PyX vs... > To: tutor@python.org > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hey friends-- > > I've been looking through the archives and haven't found any > comparative evaluation of Python graphics libraries... > > Which is the best (or your favorite), and for what tasks? > > Thanks a lot! > Vijay > > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Redirect from a CGI script
How can i redirect to another URL from a python CGI script.
Is's suposed to be as simply as:
print "Location : http://newurl "
It's not working.
this simple code does't work -
'print "Content-Type:text/html\n\n"
'print "Location : /cgi-bin/ecodiv.pyw "
'print
I use CGIHTTPServer, the server script is as follows:
'from BaseHTTPServer import HTTPServer
'from CGIHTTPServer import CGIHTTPRequestHandler
'HTTPServer(("localhost", 80), CGIHTTPRequestHandler).serve_forever()
instead of redirecting, it only prints 'Location : /cgi-bin/ecodiv.pyw' inthe
browser
Paulino
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Re: [Tutor] Redirect from a CGI script
Thank you Andre,
well it doesn't work either!
Paulino
Andre Engels escreveu:
2007/1/18, Paulino <[EMAIL PROTECTED]>:
How can i redirect to another URL from a python CGI script.
Is's suposed to be as simply as:
print "Location : http://newurl "
It's not working.
this simple code does't work - < redir.pyw>
'print "Content-Type:text/html\n\n"
'print "Location : /cgi-bin/ecodiv.pyw "
'print
I use CGIHTTPServer, the server script is as follows:
'from BaseHTTPServer import HTTPServer
'from CGIHTTPServer import CGIHTTPRequestHandler
'HTTPServer(("localhost", 80), CGIHTTPRequestHandler).serve_forever()
instead of redirecting, it only prints 'Location :
/cgi-bin/ecodiv.pyw' inthe
browser
I haven't tested it, but I think I had a similar error recently, and
that was solved by removing the \n\n at the end of the Content-Type
line. You could try that.
--
Andre Engels, [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
ICQ: 6260644 -- Skype: a_engels
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Re: [Tutor] Redirect from a CGI script
Still doesn't work.
This should be a server issue, once I use a very basic server:
'from BaseHTTPServer import HTTPServer
'from CGIHTTPServer import CGIHTTPRequestHandler
'HTTPServer(("localhost", 80),CGIHTTPRequestHandler).serve_forever()
I tryed also with the Karrigel embeded server and nothing happened...
I tryed all the sugestions from Andre with no succes.
The cgi script as only these two lines:
'print "Content-type:text/html\r\n"
'print "Location:http://python.org/\r\n\r";
I have a Win Xp pro machine with Python2.5.
Paulino
On Sat, 2007-01-20 at 02:10 +, Paulino wrote:
Thank you Andre,
well it doesn't work either!
This works,
#!/usr/bin/python
print "Location:http://python.org/\r\n\r";
as does this
#!/usr/bin/python
print "Content-type:text/html\r"
print "Location:http://python.org/\r\n\r";
Tested using Apache on Linux. A redirect should have a 3xx status.
Apache saw the location header and fixed the status to be 302. My
browser (firefox) received the 302 status with the new location and
requested the new URL.
Each header line should be separated by \r\n. A Python print on linux
will only output \n. In actual practice, that appears to work OK.
either the browsers tolerate the missing \r or Apache fixes the data
stream.
Firefox plugins called tamperdata and liveheaders can be very helpful
for debugging these kinds of interactions.
Get the redirect to a real web site working. Then fix it to redirect to
your script. Use tamperdata to see what is going on if you have trouble
making it work.
Paulino
Andre Engels escreveu:
2007/1/18, Paulino <[EMAIL PROTECTED]>:
How can i redirect to another URL from a python CGI script.
Is's suposed to be as simply as:
print "Location : http://newurl "
It's not working.
this simple code does't work - < redir.pyw>
'print "Content-Type:text/html\n\n"
'print "Location : /cgi-bin/ecodiv.pyw "
'print
I use CGIHTTPServer, the server script is as follows:
'from BaseHTTPServer import HTTPServer
'from CGIHTTPServer import CGIHTTPRequestHandler
'HTTPServer(("localhost", 80),
CGIHTTPRequestHandler).serve_forever()
instead of redirecting, it only prints
'Location : /cgi-bin/ecodiv.pyw' inthe
browser
I haven't tested it, but I think I had a similar error recently, and
that was solved by removing the \n\n at the end of the Content-Type
line. You could try that.
--
Andre Engels, [EMAIL PROTECTED]
ICQ: 6260644 -- Skype: a_engels
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[Tutor] same output on diferent sys.stdout.encodings
Hi everyone! I have some strings that include special characters, to be displayed in widget labels ( PyQt4 ). The output changes in diferent OS's due to diferent sys.stdout encoding Not only the labels in the GUI change, but the source file strings are altered when I move from win to linux and vice-versa. The solution I found for now was to replace the special characters in the source file string for their representation: I replaced "é" (e acute ) by "\xe9" wich correpsond to chr(233) in the cp1252 encoding. The character é (e acute) in linux is not recognized in the source file, neither in IDLE nor in Kate My win sys.stdout.encoding is cp850 and the linux one is utf-8 Now I have "d\xe9bito" instead of "débito" (debit in portuguese). By passing the string through unicode with the convinient encoding, I ensure the labels are exibithed the same in every OS but, this way the code is not very readable. Is there a way of solving this, keeping the more readable? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] same output on diferent sys.stdout.encodings
Yes I have that declaration in my script. Paulino > Send Tutor mailing list submissions to > tutor@python.org > > # -*- coding: iso-8859-1 -*- If you put this at the first line of your .py files (of course replace iso-8859-1 with whatever encoding you use) I think this should do the trick. I hope this helps Michael -- ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] same output on diferent sys.stdout.encodings
Yes that is the problem. But I canot control all the the encodings in every PC that the script is to be run... Paulino Kent Johnson escreveu: > > I think the problem you are having is with the source code encoding, > not sys.stdout.encoding. Probably your editor on linux expects a > different file encoding than what you are using in Windows. Your > windows editor is probably using cp1252; perhaps the linux editor > expects utf-8. > > You need to get the editors to agree on the source code encoding. Then > put the coding declaration at the top of the file as Michael suggested. > > Kent > > > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
