CODEWITHSUNDEEP
pythondjangoapache
UMI
UMI

Reputation: 37

Python PY files do not reflect changes

I have experience with PHP but now have to manage a python application. It is already developed and running on live server. On live server we have beta.domain.com as well. which has its own copy of same source, other than the main domain application.

Now, when we print something within template it effects but before that, following MVC, if we try to print or use sys.exit() in manage.py or later imported "settings.py" or then views.py, nothing effects these files at all. After any change in just mentioned files, Website still renders everything and display related template.

Another thing that if even we remove

return render_to_response('home.html', RequestContext(request, context))

inside the views.py for testing, nothing effects and website still gets rendered with template.

Do I need to think that if website code is already hosted then in order to have changes to reflect new one in the code in any file (.py), needs to be reinitialized by executing any project related file?

I am not sure how python code needs to be updated at all, any quick help is much appreciated.

Upvotes: 2

Views: 2832

Answers (3)

Arun K
Arun K

Reputation: 252

The solution is excatly restarting the apache server as answered by Sudipta .Each time the py files are interpretted .pvc files are created for each corresponding .py files.When the Apache server is restarted all the python source files are interprretted again and new .pvc files are generated and only these files will run till the apache restarts again.

Upvotes: 0

Sudipta
Sudipta

Reputation: 4971

Anytime you change your code, you need to restart Apache server.

<path to apache>/bin/apachectl restart

The python interpreter of the process has already loaded your python modules in previous web requests. And once the module is loaded, it is stored in memory. Next time when a request comes, the Python interpreter will simply use the version of the module that is already loaded in memory. So your changed code will not be picked up.

Upvotes: 4

Daniel Roseman
Daniel Roseman

Reputation: 599620

Please, please, please don't try and edit files on your live server. You're only going to get yourself into terrible difficulties. Use a local copy for development, preferably cloned via a version control system, and deploy at regular intervals rather than on every change.

To answer your question, you usually need to restart the WSGI process in order to see Python code changes. An easy way to do this is to touch the .wsgi file, at which point mod_wsgi will detect that it has changed, and reload everything. Otherwise you can simply reload Apache.

Unfortunately I don't understand your references to manage.py or sys.exit.

Upvotes: 0

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