This makes sense. Thanks!
I managed to get what I wanted with something similar to what you suggested:
[CODE]
print "Content-Type: text/html\n\n"
html="""
<html>
<head>
<title>
data analysis site
</title>
</head>
<body>
<p>This is a test</p>
<IMG SRC="%s" />
<p>After image text</p>
</body>
</html>"""
print html % myChartsLib.myPlotType(TheData)
[/CODE]
and the script returns
[CODE]
f = StringIO.StringIO()
pylab.savefig(f)
return 'data:image/png,' + urllib.quote(f.getvalue())
[/CODE]
This works fine in Firefox, but not in IE7. Any ideas why?
BTW, you are right about me not having a clue about http. It's the first time I
try to do something with it. May be you could point me out to some good links
where I can learn.
I will take a look into Mako too.
Thanks again.
Bruno Desthuilliers <[EMAIL PROTECTED]> wrote :
> [EMAIL PROTECTED] a écrit :
> > Sorry, my fault...
> >
> > I am trying to build a web application for data analysis. Basically
> > some data will be read from a database and passed to a python script
> > (myLibs.py) to build an image as follows.
> >
> > [CODE]
> > f=urllib.urlopen("http://localhost/path2Libs/myLibs.py",urllib.urlencode(TheData))
> > print "Content-type: image/png\n"
> > print f.read()
> > f.close()
> > [/CODE]
> >
> > This section behaves as expected, and I can see the chart on the
> > web-page.
>
> Indeed. Using an http request to call a local script is totally
> braindead, but this is another problem.
>
> > Now, I would like to add some text and possibly more charts
> > (generated in the same way) to my web-page.
>
> Which one ? What you showed is a way to generate an image resource (with
> mime-type 'image/png'), not an html page resource (mime-type :
> text/html). Images resources are not directly embedded in html pages -
> they are *referenced* from web pages (using an <img> tag), then it's up
> to the user-agent (usually, the browser) to emit another http request to
> get the image.
>
>
> > This is what I need help
> > with.
>
> Not tested (obviously), but what you want is something like:
>
> print "Content-type: text/html\n"
> print """
> <html>
> <head>
> <title>data analysis site</title>
> </head>
> <body>
> <p>This is a trial test</p>
> <img src="http://localhost/myLibs/ChartLib.py?%s"; />
> </body>
> </html>
> """ % urllib.urlencode(TheData)
>
>
> > My question: How can I use python to dynamically add descriptive
> > comments (text), and possibly more charts to the web-page?
>
> The code you showed so far either tried to add text/html to an image
> (that is, binary data), or to embed the image's binary data into
> text/html. None of this makes sense. Period. The problem is not with
> Python. The problem is that you can't seriously hope to do web
> programming without any knowledge of the http protocol.
>
> Also and FWIW, you'd be better using a decent templating system (mako,
> cheetah, genshi, tal, whatever fits your brain) instead of generating
> html that way.
> --
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