call python script by php and solve errors

Question

I have a php/action.php. That script creats a file in the folder ../data/myfile.kml. After creating this file I want to modify it. So I call a python script by

exec("python mypythonscript.py someparams");

Php errors are shown, when I call the website. Is there a way to show the python erros on the webseite, too?

It seams that the python script works, when I execute it by terminal but php doesn't seam to get the script running. So I need some hints to track down, where the problem lays. I must say, I am new to web programming, so please have a little patience with me. If there is more you need to know to be able to help me, I'll be glad to answer your questions.

Kind regards Aufwind

Itay Moav -Malimovka · Accepted Answer · 2011-04-18 00:09:33Z

6

You can see the output of exec if you pass it an additional array (and later see its contents):

exec("python mypythonscript.py someparams",$my_output);
var_dump($my_output);

You should be able to debug from there.

edited Apr 18, 2011 at 0:09

Itay Moav -Malimovka

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answered Apr 18, 2011 at 0:03

Uku Loskit

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Comments

Eric Conner · Accepted Answer · 2011-04-18 00:04:56Z

2

The most likely explanation is that php executes the script as a different user and, therefore, with different permissions than you do calling it from the command line. You'll need to give the user running php (usually www-data) permission to do whatever your python script is doing.

answered Apr 18, 2011 at 0:04

Eric Conner

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5 Comments

Eric Conner Over a year ago

Is this your own server or are you running on shared hosting?

Eric Conner Over a year ago

What is the python script trying to do? And did you get the output of it when run by php? What's the error message?

Aufwind Over a year ago

The python script modifys some files, which are created by action.php before. I figured out how to run the python script by php. If I did not try to modify the files, it worked. So I thinl your guess, that there are permission issues was right. Because I couldn't solve that issue I tryed another approach. Thank you for your effort though. It is nice to know at least where the error was.

Emma Over a year ago

I do have same issue user is apache and python need to run using root user. But not able to find anything to make it work. Can anyone suggest something?

daulat Over a year ago

The same question getting this error No module named mysql.connector

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