[Tutor] need help planning website updates
I have a sort of simple CMS system on my website made from a conglomeration of scripts. On the left column, I want to add a feature that shows the last five items updated (only html & exe files in the /var/www/html/ for example) directory that I have updated, with each item as a link to the page. You can see what this is supposed to look like at http://jayloden.com (right now it's being done by hand) I've been thinking of having a crontab run a Python script, which logs checks a file with something along the lines of: file.foo = 12:20-1/20/05 for each file, containing the date and time the file was last modified. Then I would have the crontab script check the date in the file versus the dates on the current files, and if the current files have been updated, to add them to the html on the side of the page. I have no trouble setting up the crontab, or editing the html template for my page (it's all created from php on the fly) but I wanted to know if I am going about this a semi-intelligent and/or efficient way, or if there is some incredibly better way that I could do this with Python. For example, is there some other way to notify my script that a file has been modified, rather than run a crontab a couple times an hour. Is there maybe a better way to store and check dates, etc. Thanks! -Jay ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] need help planning website updates
Adding it into the PHP that creates the html would create too much overhead since it loads each page individually upon request, and that would mean running the modified time check on every page load. But I was thinking about this after I sent the mail, and I think you have a point with just outputting the five last modified out of all files. This was one of those times when your brain fails you and you think up an overly complicated solution to a simple problem. This way the script just has to run every 15 minutes or so and give me the five most recent files for use in the PHP. Thanks! -Jay On Thursday 20 January 2005 12:45, Kent Johnson wrote: > It seems to me that if you want the five most recent changes, you don't > have to keep a list of modified dates. Just get the modified date for all > the files of interest and sort by date, then pick the top five. > > You could do this as part of your process to build the web site maybe? > > Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] glob or filter help
I have the following code in my updates script (gets the five most recent updated files on my site) def get_fles(exts, upd_dir): '''return list of all the files matching any extensions in list exts''' fle_list = [] for each in exts: cmd = upd_dir + "*." + each ext_ls = glob.glob(cmd) fle_list = fle_list + ext_ls return filter(notlink, fle_list) I wanted to just get one list, of all the .htm and .exe files in my upd_dir. I was trying to make a far more elegant solution that what's above, that could generate a list through a filter. Is there a way to trim the code down to something that does ONE sort through the directory and picks up the .htm and .exe files? (note, it is not necessary for this to recurse through subdirectories in the upd_dir). I have cmd defined above because calling "glob.glob(upd_dir + "*." + each) returned the error "cannot concatenate string and list objects" - is this the only way around that, or is there a better way? Also in the above code, "notlink" is just a function that returns True if "islink()" returns truethere has to be a better way to use this with filter(), how can i make filter use "if islink()!=true" as its condition? The script is working now, (I know, I know, if it ain't broke, don't fix it...) but I want to be a better programmer so more elegant solutions are accepted gratefully. -Jay ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] read line x from a file
One simple solution is to do: fle = open(file) contents = file.readlines() file.close() print contents[x] #or store this in a variable, whatever -Jay On Friday 21 January 2005 11:22, J. M. Strother wrote: > I have a text file containing 336 records. > I can read and print out the whole file without any problem. > What I want to do is read and print out one record only (chosen at > random). So I need to get to record x, select it, and then print it (or > store it in a variable). > Can anyone tell me now to do this? > > I'm new to Python and programming, so sorry if this is very basic. Thanks. > > jon > ___ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] New to Python
I also recommend the book "Dive Into Python" - it gets awesome reviews, and the book is under Creative Commons license, so it's free to download and distribute. http://diveintopython.org I also have the book "Core Python Programming" which is pretty good, and has a nice way of leaping right into code so that if you have any prior knowledge, you can use it to learn faster. -Jay On Wednesday 26 January 2005 09:09 pm, Jason White wrote: > > Greetings all, I'm new to python and thought I'd pop in here for > advice. I've done object oriented design and programmed in perl, > java, c++, basic, etc. I haven't done a lot of development, mostly > just glorified oject-oriented scripts. I'm curious about good > tutorial websites and books to buy. > > I also have a development question for anybody who might know. The > project I'm working on now to develop my python skills is a prgram to > script control another windows program. The program doesn't have a > published API so I'll probably need to locate memory addresses data fields > and button routines. Am I in way over my head for a Python beginner > or does anybody have any advice for where to start poking around in memory > and which python classes I should use to do so? > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] files in a directory
There's a few ways to accomplish this...the way that comes to mind is:
##
import glob
files = glob.glob("/path/to/director/*.dml") # assuming you want only .dml
def spot(file):
'''search for intensity spots and report them to an output file'''
f1 = open('my_intensity_file.dml','r')
int = f1.read().split('\n')
my_vals = intParser(int)
intParser return a list
f2 = open('myvalues.txt','w') # you will want to change this to output mult
for line in my_vals: # files, or to at least append instead of overwriting
f2.write(line)
f2.write('\n')
f2.close()
def main():
for each in files:
spot(each)
main()
##
Basically, turn the parsing into a function, then create a list of files, and
perform the parsing on each file. glob() lets you grab a whole list of files
matching the wildcard just like if you typed "ls *.dml" or whatever into a
command prompt. There wasn't too much info about specifically how you needed
this to work, so this is a rough sketch of what you want. Hopefully it helps.
-Jay
On Sunday 30 January 2005 03:03 am, kumar s wrote:
> Hello.
>
> I wrote a parser to parse spot intensities. The input
> to this parser i am giving one single file
>
> f1 = open('my_intensity_file.dml','r')
> int = f1.read().split('\n')
>
> my_vals = intParser(int)
>
> intParser return a list
> f2 = open('myvalues.txt','w')
> for line in my_vals:
> f2.write(line)
> f2.write('\n')
>
> f2.close()
>
>
> The problem with this approach is that, i have to give
> on file per a run. I have 50 files to pare and i want
> to do that in one GO. I kepy those 50 files in one
> directory. Can any one suggest an approach to automate
> this process.
>
> I tried to use f1 = stdin(...) it did not work. i dont
> know , possible is that i am using incorrect syntax.
>
> Any suggestions.
>
> Thank you.
> K
>
>
>
>
>
>
>
> __
> Do you Yahoo!?
> All your favorites on one personal page Try My Yahoo!
> http://my.yahoo.com
> ___
> Tutor maillist - Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] sys.argv[1: ] help
Should be: import sys def main(): '''prints out the first command line argument''' print sys.argv[1] main() On Friday 25 February 2005 04:35 pm, Richard gelling wrote: > Hi, > > I am reading ' Learning Python second edition' by Mark Lutz and David > Ascher, and I trying the code examples as I go along. However I am > having a problem with the following, which I don't seem to be able to > resolve :- > > # test.py > import sys > > print sys[ 1: ] > > This I believe is supposed to print the 1st argument passed to the > program. However if I try > > test.py fred > > All I get at the command line is > > [] > > If I try :- > > python test.py fred > > I get > > ['fred'] > > as I believe you are supposed to. I can run other examples,I have typed > in by just using the file name, but not this particular example. Could > anyone shine any light on what I am missing or have not configured > correctly. I am runnung Python 2.4 on a windows XP box. > > Thanks a lot > > Richard G. > ___ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Newbie simple question
You want readlines() not readline() and it should work something like this:
remailfile = open("remail2.txt", r)
remails = remailfile.readlines()
for line in remails:
#do something
-Jay
On Friday 25 February 2005 05:14 pm, Valone, Toren W. wrote:
> I need to know how to read the next line while in the "for line in" loop.
> Readline does not read the next line (I watched it in debug) I think it has
> something to do with the for line loop but I have not found any
> documentation in the doc's or tutor for any functions for line..
>
> Thanks, please forgive the sloppy code.
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] Prepend to a list?
How can I prepend something to a list? I thought that I could do list.prepend() since you can do list.append() but apparently not. Any way to add something to a list at the beginning, or do I just have to make a new list? -Jay ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] random import errors?
I have a python script that runs on my webserver every fifteen minutes. It has run for several months with absolutely no problems. Suddenly, yesterday morning I got an email from cron with an import error for sre_constants (see below) I logged in with ssh, manually ran the script and got the same error. started a Python interpreter shell, did "import sre_constants" and got no error. Exited, then ran the script again...and got an error importing 'string'. I manually started up Python interpreter again and imported string, again with no error. Then I exited and ran the script, and it ran fine with no errors. I got another such email from cron at 2:30am today ... anyone have any idea what would cause such a seemingly random problem after months of working fine? (sample traceback is below) -Jay 'import site' failed; use -v for traceback Traceback (most recent call last): File "/usr/local/bin/last_update", line 7, in ? import os, glob, time File "/usr/lib/python2.2/glob.py", line 4, in ? import fnmatch File "/usr/lib/python2.2/fnmatch.py", line 13, in ? import re File "/usr/lib/python2.2/re.py", line 27, in ? from sre import * File "/usr/lib/python2.2/sre.py", line 97, in ? import sre_compile File "/usr/lib/python2.2/sre_compile.py", line 15, in ? from sre_constants import * ImportError: No module named sre_constants ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Re: random import errors
Only one version installed, and I could copy it over from elsewhere, but I wouldn't be inclined to do so since it works right now. -Jay On Tuesday 05 April 2005 10:22 pm, Lee Harr wrote: > >I have a python script that runs on my webserver every fifteen minutes. > > It has run for several months with absolutely no problems. Suddenly, > > yesterday > >morning I got an email from cron with an import error for sre_constants > >(see > >below) > > > > > > File "/usr/lib/python2.2/sre_compile.py", line 15, in ? > > from sre_constants import * > >ImportError: No module named sre_constants > > Do you have more than one version of python installed? > Can you copy sre_constants.py from another system? > > _ > Express yourself instantly with MSN Messenger! Download today it's FREE! > http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ > > ___ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Cell Bio Newbie Here
Ok, it's a logic error in the while loop. Starting at the beginning: you
can't compare the value of "password" until the user inputs the value, which
is why it's requiring you to put password = "foobar" at the top. Otherwise,
password has no value, and as far as the interpreter is concerned, it doesn't
exist yet.
The rest of it is a logic error because your while loop is executing as long
as "unicorn" != "foobar" and therefore it's continuously looping. Each time
it loops, it asks for the password again, and sets a LOCAL variable called
password to the new raw_input. Then, when you get to the third time, it does
the "if current_count in." Great. But after my third mistake, it just loops in "That must have
> been complicated."
>
> I'd like for someone to tell me "why" i screwed up. Not to just fix it.
> #first of all, why does this have to be here?
> password="foobar"
>
> count=3
> current_count=0
>
> while password !="unicorn":
> if current_count password=raw_input("Password:")
> current_count=current_count+1
> else:
> print "That must have been complicated"
>
>
> print "Welcome in"
> Best,
>
> Gary
>
>
>
> Gary Laevsky, Ph.D.
> Keck Facility Manager, CenSSIS
> Northeastern University
> 302 Stearns
> 360 Huntington Ave.
> Boston, MA 02115
> voice(617) 373 - 2589
> fax(617) 373 - 7783
>
> http://www.censsis.neu.edu
>
> http://www.ece.neu.edu/groups/osl
>
> http://www.keck3dfm.neu.edu
>
> ___
> Tutor maillist - Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] how to display an image using python
If you don't mind using an external program, you could use the 'display' command from ImageMagick. -Jay On Thursday 14 April 2005 07:59 pm, Ertl, John wrote: > All, > > I have asked this question before, but one more time most have commented > about manipulation but displaying the image has become the big issue. I > want to display png and gif images on a Linux machine using python. I am > using PyNGL to make the images and PIL to manipulate them but I cannot load > xv on the machines and PIL uses xv to display. I have looked at > PythonMagick but I could not even get past installing it. It does not have > a setup.py and uses boost. I am hoping for a more straightforward Python > way. > > Thanks, > > John Ertl > ___ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Installation Routines (Joseph Quigley)
Rpm does in fact have dependency resolution, and rpm-based distributions use a package manager that can download the dependencies and install them for you - urpmi on mandrake, yum or apt4rpm on Fedora and Redhat, Yast on Suse I've used all of these, they are all rpm based, and they all install dependencies. If you use the raw "rpm" command, even that will tell you "missing dependecy foo". That being said, apt-get on debian is still my favorite (for sheer number of available packages), but urpmi on mandrake or Yast on Suse are quite excellent. -Jay On Wednesday 20 April 2005 04:17 pm, Max Noel wrote: emerge and apt-get come to mind. rpm is inferior (no dependency > resolution) but still does a good job, and I hear autopackage isn't > bad. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python and Web Pages?
I use both Python and PHP on my website to do a variety of tasks. Some things PHP can do much easier than Python, but if you're doing simple things like form handling, Python will do nicely. If you're comfortable with Python, use it. I find Python much easier to work with than PHP for a lot of things, but PHP works better with dynamic content within html, so I use each one where it's easiest. However, if you're not familiar with PHP, then I definitely wouldn't go out and learn PHP for this; just stick with Python because you'll get it done faster when you're comfortable. -Jay On Saturday 23 April 2005 05:09 pm, Paul Tader wrote: > I have a couple programs/scripts that I want to write that need to be > web-based. Can Python (and a little HTML) accomplish this? Or are > other languages like PHP, or Perl better suited? > > > A little more detail: > > One project is to make a web page that users login to with a name and > password, choose from a list of "canned" directory structure (ie. how > many subdirectories, top-level name, maybe permissions, etc), hit a "GO" > button and then the directories are made. > > Another example is a web-based form that users interface with a mySQL > database. Simple additions/changes/deletions. Basic stuff. > > > Thanks, > Paul > > > > ___ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] getopt matching incorrect options
I have an app that takes a command line argument of -l or --list. It uses the
getopt module to parse the arguments, and I just noticed that for some reason,
getopt is matching "--lis" or "--li" etc to "--list". (Code pasted in below)
Is this normal behavior, and if so, is there any way to avoid this? I just want
it to match "--list" to "--list", not "--l" and "--li" and "--lis" etc.
-Jay
## Code chunk below ##
try:
options,args = getopt.getopt(sys.argv[1:], "Rf:shvl", ["list",
"full-restart=", "full-restart-all", "status-all", "help", "version"])
except getopt.GetoptError:
# print help information and exit:
usage()
sys.exit(2)
if opt in ("-l", "--list"):
listServices(svcs)
sys.exit()
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
[Tutor] getopt matching incorrect options
I have an app that takes a command line argument of -l or --list. It uses the
getopt module to parse the arguments, and I just noticed that for some
reason, getopt is matching "--lis" or "--li" etc to "--list". (Code pasted in
below)
Is this normal behavior, and if so, is there any way to avoid this? I just
want it to match "--list" to "--list", not "--l" and "--li" and "--lis" etc.
-Jay
## Code chunk below ##
try:
options,args = getopt.getopt(sys.argv[1:], "Rf:shvl", ["list",
"full-restart=", "full-restart-all", "status-all", "help", "version"])
except getopt.GetoptError:
# print help information and exit:
usage()
sys.exit(2)
if opt in ("-l", "--list"):
listServices(svcs)
sys.exit()
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Deleting an entry from a dictionary
I don't believe it does...some time ago I asked about this when I was creating a list and I wanted the opposite of list.append() - if you search "prepend to a list" you should find the responses I was sent. The only solutions Python offers that I'm aware of are to either use list.insert() at the zero index, or use list.reverse() with list.append() to flip the list around, add an item, then reverse it back to the original order with one new item at the beginning. -Jay On Wednesday 03 August 2005 2:21 pm, Smith, Jeff wrote: > Ummm...that doesn't do what I asked. > > pop is a linguistic idiom for > > (val, mylist) = (mylist[-1], mylist[0:-1]) > > shift is the standard idiom for > > (val, mylist) = (mylist[0], mylist[1:]) > > but Python doesn't appear to offer this. > > Jeff > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How do I add an argument too...
I think it was just a typo for "the python distro" that came out as "the epython distro"... On Thursday 21 July 2005 9:15 pm, Danny Yoo wrote: > On Thu, 21 Jul 2005, Joseph Quigley wrote: > > optparse.. Can I download that as a module or do I have to download > > epython? > > Hi Joseph, > > optparse derives from a hird-party library called Optik, so in a pinch, > you can probably just use Optik: > > http://optik.sourceforge.net/ > > It's also possible to port optparse back to older versions of Python, > although that may take more work. > > Good luck! > > ___ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Zope/Python web devel
I've been considering some web projects recently, but I have some concerns about selecting the tools I plan to use. I like Python, and I was immediately thinking of using Zope to build on. However, I am concerned about performance, resource usage, and scalability. Does anyone here have any experience with Zope or any other application frameworks like CherryPy used in a large/enterprise environment? Is Zope overly memory hungry or slow? If performance is a key point, am I better off growing my own solution from the ground up? Second, and more specific to Python itself - does anyone here have first hand knowledge of how Python compares with other solutions for server side web development? I'm specifically interested in comparisons to PHP, but Ruby, Perl, Java, C/C++ and Lisp, etc. observations would be welcome. Basically, I'm trying to get a feel for what kind of performance and resource usage I'd see out of Python versus other options. I realize this is heavily dependent on what exactly I end up doing, but just as a general observation, I'd like to know what others have experienced. I know that some large web applications are built on Python (Yahoo Mail, Google), but there's certainly less being done in Python on the web than in Perl or PHP. I just want to make sure this isn't because of Python disadvantages as opposed to simple market share. All responses are welcome. If anyone has links to some benchmarking studies comparing the two for web development I'd be grateful for those as well. -Jay ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] while loops
> coin = random.randrange(2) That's the problem there...you've got coin assigned outside the while loop, so it is assigned 0 or 1 once, before the loop, and then you're running 100 checks on the same value. If you move > coin = random.randrange(2) to inside the while loop before the if statement, you'll get the result you want. -Jay On Monday 08 August 2005 5:41 pm, Will Harris wrote: > I am working my way through "python programming for the absolute beginner" > and one of the challenges is to create a program that will flip a coin 100 > times and tell you how many of each it did. Now I have it flipping the > coin, but when I try to do this 100 times I end up with it running through > 100 times, but always the same result comes back. It will either be 100 > heads, or 100 tails. I have tried if statements and while loops and both > seem to give me all or nothing. I am just looking for a hint at the > direction to look of adjust to get the code below working not really the > solution. Thanks in advanced for any tips. > > #!/usr/bin/python > import random > > coin = random.randrange(2) > > count = 0 > head_count = 0 > tail_count = 0 > > while (count != 100): > if coin == 0: > print "You got Heads!" > head_count = head_count + 1 > count = count + 1 > else: > print "You got Tails!" > tail_count = tail_count + 1 > count = count + 1 > > print "Out of", count, "you flipped", head_count, "heads and ", tail_count, > "tails" > > ___ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Invoking bash from within a python program
Watch yourself on this one, slocate can often return some unexpected results for file searches, and the last thing you want to do is delete something important while trying to remove the latest game you installed. Also, if you're installing from source you can often run "make uninstall" to remove the installed files. And finally, the Vinay's suggestion of a simple one liner shell script is much simpler and probably as fast or faster than anything you come up with in Python. Just figured I'd lend some words of warning to you as someone who's made similar mistakes in the past ;) -Jay On Sunday 14 August 2005 6:33 am, joe_schmoe wrote: > The basic idea I was toying around with is to create a delete/uninstall > program that would take the output of slocate and iterate through that > deleting all of the files associated with the program ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Python equiv to PHP "include" ?
I've not been able to find an answer to this conundrum anywhere:
My current website is done in PHP with a setup something like this:
::PHP TEMPLATE CODE::
include('file.htm')
::PHP TEMPLATE CODE::
This way, I can have PHP embedded in my htm files and it will be processed as
part of the script. For example, I can have a form that's written in HTML and
processed in PHP, then simply 'include("form.htm")' and I have a form with
processing that's ALSO wrapped in my site template.
I can't figure out how one would approach this in Python (i'm using
mod_python). There's no equivalent to the "include" function from PHP. I
can't use import because then Python would try to parse the HTML from the
imported file. I've looked at stuff like cheetah and PSP, but neither of
those actually answers the question, which is how can I include dynamic
content including PHP code directly into an existing script. Even if I
started using PSP, I still can't "include" a PSP page into the middle of
another PSP page.
I'm definitely willing to consider any other solution for how I can make a
form that processes its input but maintains my template code wrapped around
it, so feel free to point out a "Pythonic" method. I just don't want to
duplicate the template code, and I can't find a nice neat solution like what
I've got in PHP.
-Jay
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python equiv to PHP "include" ?
Alan, thanks for your responses, they're quite helpful. I suspect the real problem I'm having is simply trying to switch modes of thinking to CGI style or mod_python style instead of the PHP style embedded code. The whole point of this exercise for me was to decide which language I prefer for web development and evaluate Python for web work. So far, I've found PHP much easier to work with and less "clunky" in terms of what I'm trying to do - but I believe that's very much a function of my thinking being rooted in the PHP style. If Im understanding this right...the Pythonic/CGI method for something like this is to import a template module of some kind, then call methods from that template to display the template, with other Python code in the middle that takes care of form processing? The solution I have now feels smoother, since all I do is put content into .htm files, then pull them into a template that's basically an html sandwich. This gives me capability to stick a section into the .htm file itself - for example a form with some dynamic content/variables - and then from a user perspective, all they see is a normal html page. >From a server side, it's seeing one big PHP script that includes both template code and form code, but without me needing to write any templating code into the form itself - instead I just call the form into the template. With Python, it seems like this kind of approach is impossible, and it also means that my form would probably have to have some kind of special extension, like "form.py" (so the handler knows what to do with it) instead of just being located at "form.htm" - am I following this all correctly? Does anyone know of any soup-to-nuts CGI programming examples online for Python that might make this clearer so I can bug the list less and just read some example code? -Jay ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Mod_python greedy url matching
I'm having trouble with Apache and Mod_python - mod_python is set to use /var/www/html and pass all *.htm files on to the handler I wrote. Unfortunately, mod_python does a greedy match, so /var/www/html/subdirectory/file.htm still gets passed to the handler! Is there some way to limit the handler to the directory and NOT include subdirectories? -Jay ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] hand-holding for web development
You need an Apache config section to tell it what to use mod_python on and
how. For example, in httpd.conf or a separate file in your conf.d directory
for apache:
AddHandler mod_python .py
PythonHandler test
PythonDebug On
tells Apache to use mod_python on all .py files in my /var/www/html directory
(which is also the document root on my server).
Once that's loaded you should be able to run whatever your python code through
a handler. For example, saving this as test.py:
#
#mod_python super basic test script
#
from mod_python import apache
def handler(req):
req.content_type = "text/html"
req_file = basename(req.uri)
if req.header_only:
return apache.OK
else:
req.write("mod_python is working")
return apache.OK
# end of script
This should print "mod_python is working" to the browser if you visit
http://yoursite.com/test.py
Remember that you need to restart/reload apache after any config change. The
basic gist is that any .py file you load in the /var/www/html runs the script
"test.py" (PythonHandler test) and executes the "handler()" function within
the script. NOTE: this can be very non-intuitive, becuase running
http://yoursite.com/test.py has exactly the same result as
http;//yoursite.com/foo.py - because they're both simply running the handler
script, test.py, for ALL .py files in the directory. That means that your
PythonHandler script needs to dispatch other scripts or load special pages in
order to get different code to run. Also note that there are some pre-written
Handler scripts that come with mod_python that can often do most of your work
for you.
You'll probably want a good tutorial on using mod_python to make sense of all
this, because it's not really intuitive and it works differently than
traditional cgi programming. Take a look at:
http://modpython.org/live/current/doc-html/
to get you started, it's a lot more detailed and will probably answer your
questions better.
-Jay
On Thursday 13 October 2005 3:49 pm, nitin chandra wrote:
> Hi!...
> i am new to Python and i want to develop a website with forms; data
> submitted through forms will be stored in PostgreSQL.
> I am working on derivant of FC3, OpenLX.
> I have Apache 2.0.54 version installed, which is pre-configured with
> mod_python.
> how do i load and view my .py/.html web page (file) on the browser.
> i need the initial hand holding/guidance of how to start, configure , and
> develop modules.
> thank in advance.
> Nitin Chandra
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] hand-holding for web development
Sorry, didn't see your reply until now... the directory section can go either in your main apache config file (in my case, /etc/httpd/conf/httpd.conf ) OR in a separate file in the conf.d directory. In my case, I have a python.conf file in /etc/httpd/conf.d/ that contains the following: LoadModule python_module modules/mod_python.so AddHandler mod_python .htm PythonHandler parse # PythonDebug On As for Django, I don't even know what that is, let alone how to interface to it, so you'd have to look elsewhere for help on that. I imagine there's someplace online you can get Django help such a specific mailing list. -Jay On Tuesday 18 October 2005 04:23 pm, nitin chandra wrote: > Thanks Jay > > i guess the can be added only in one of the conf > file. Which one should i add in? > > Thaks you. could you please guide how to interface Django with > mod_python, for effectively using in web site development? > ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
