28 replies to this topic

[Jonathan J]

Python was actually installed yesterday on the Reliability server, this is what python is:

Quote

A freeware open-source cross-platform interpreted scripting language from www.python.org.

You can go on hotscripts.com and find some neat python scripts, if you what to experiment with Python!

[Ad Bot]

[Davey G]

Yay! Awesome, thanks Jon

Now, it's off to finish of the 'Open Source Website' ..

Edit: http://goudou.me.uk
Just shows the 'python' code.. No output/source

Edited by Davey G, 25 May 2008 - 02:09 AM.

[vista07]

Neat work! I was looking forward to work with Python!

Thanks Jon

[z.q.k]

Great!

[Nec]

Hmm, will we be getting this on variable (apparently thats what Im on)?

[Jonathan J]

Yes. Just give me sometime and it'll be installed later today. As for the python support for reliability, David, could you try another script?

[Nec]

Jon: Alright, thanks

Davey: Have you set the environment at the beginning? #!/usr/bin/python should work if that is where it is installed. That or #!/usr/bin/env python

[Davey G]

Jon and Necro.. Iv tried using #!/usr/bin/python and #!/usr/bin/env python with no success.

Also heres what i see from the cPanel File Manager:


No python icon for the file, which is weird.. Possibly the sever isn't parsing Python scripts correctly?

[Nec]

Well, if thats the case, you are right. The server is just treating it as a regular text file according to the mime type set. Apache isnt handling the python files correctly.

[lsproc]

Make sure the file has exec permissions.

You might need it in the cgi-bin, but I might be wrong, I dont know the CGI setup here

[maurobio]

Dear ALL,

I also have problems trying to execute a test Python script:

Here is the humble script I am trying to run:

#!/usr/bin/python
print "Content-type: text/html"
print
print ""
print "
A First CGI Example
"
print "
Hello, CGI World!
"

I put it on the "cgi-bin" folder of my webspace and give it all permissions (0777). On CPanel, I have also assigned an Apache handler to files with .py extension.

I does not work! All I get back is the source listing of the script itself... :mad:

Any hints, please?

With warmest regards,
Mauro Cavalcanti, from Rio de Janeiro, Brazil

[Jan J]

maurobio said:

...
Any hints, please?

With warmest regards,
Mauro Cavalcanti, from Rio de Janeiro, Brazil

Just change the Extension to .cgi and you are going to be fine ! That's the point a lot of people bother with, just adding .cgi tells Apache to run this script in command line mode.

wikipedia said:

The Common Gateway Interface (CGI) is a standard protocol for interfacing external application software with an information server, commonly a web server.

python is on your internal server, cause it is a powerful language and you do not want it to be accessed by public. So to execute a python script you need to pass your code through the gateway, which can be easily down by adding the extension .cgi and placing the file in the cgi-bin folder.

If you do not want to execute your cgi files in this folder you can open up everyfolder to cgi ability by adding a .htaccess file that contains

AddHandler cgi-script .cgi

I think this will do for the moment. By the way I am really happy to see vlexo.net adding python support, but in my opinion to run bigger python projects like django commandline access is required. But that is just my very own opinion.

[Garrett R]

import antigravity;

Oh, I'm flying!

+5 internet points to anyone who gets this reference.

[maurobio]

Dear Jan,

Thank you very much for your explanation. I changed the extension of my humble CGI/Python test script (from "test.py" to "test.cgi")... but it still does not work! :mad: The server keeps returning me the obnoxious "500 Internal Server Error" message when I try to run the script using the URL: http://www.especies....gi-bin/test.cgi

My best hint now it that the shebang line at the beginning of the script is not pointing correctly to the location of Python in the Vlexo server, anyway I cannot figure it out.

I just hope that once this problem is solved, the solution may benefit many other current and future users -- I publicily offer to write a short tutorial on "Running Python scripts in Vlexo Hosting Service" and give it away to Vlexo for free distribution, in exchange for your support.

Thanks for your patience, and time.

With best regards,
Mauro Cavalcanti, from Rio de Janeiro, Brazil

[Nec]

@ maurobio: Are permissions set correctly?

@ Garrett: Its xkcd!

[maurobio]

I set permissions to 0777 and 0755 (the same of the other CGI scripts in cgi-bin directory) and the Python script does not work either... :eek:

[Jan J]

I'm not sure what you did but my tips work for me

I created a folder named "testing"
created a file named ".htaccess" (important this is a hidden file)
and a file called "py.cgi"
filled the ".htaccess" file with

AddHandler cgi-script .cgi

and the py.cgi file with

#!/usr/bin/python
print "Content-type: text/html"
print
print "<title>CGI 101</title>"
print "<h1>A First CGI Example</h1>"
print "<p>Hello, CGI World!</p>"

saved both.
set the permission for "py.cgi" to 0755
and was able to run your script:**offline**

I am not sure what exactly went wrong but in general this should work in the cgi-bin folder as well, if not then try my method this is proven to work with vlexo.net !

[maurobio]

Dear Jan,

I got able to reproduce your steps - and, this time, it worked! :D:D

Thank you very much indeed!

A potentially interesting hint: it was not necessary for me to create a .htaccess file (as .cgi is already defined as a standard extension for server-side scripts).

Well, as promised here, will now proceed to summarize all this and write-up a short "how-to" to donate the Vlexo support personnel and so help other users in the future.

With warmest regards,

Mauro Cavalcanti, from Rio de Janeiro, Brazil

[lsproc]

If you would rather have your python scripts ending in .py, you could change the cgi-hander to .py instead of .cgi

[Davey G]

Woot - now i gots it working Thanks Jan for the tips