Re: program organization question for web development with python
On Sep 17, 2:36 am, Bruno Desthuilliers bruno. 42.desthuilli...@websiteburo.invalid wrote: Hans a écrit : (snip) Maybe I did not make my question clear. I never tried python web programing before, so I want to start from CGI. You can indeed learn quite a few things doing raw CGI - the most important one being why frameworks are a good idea !-) I read something about web framework like django, but seems it's a little bit complicated. Not that much IMHO, but being an early django user I'm probably a bit biased. Now Python is known as the language with more web frameworks than keywords, so you could probably check some lighter framework like web.py (http://webpy.org/) or flask (http://flask.pocoo.org/). my task is actually very simple: get search string from input, and then search database, print search result. I thought CGI should be good enough to do this. CGI is good enough to do any web stuff - just like assembler is good enough to write any application !-) I don't have any idea about how to organize those cgi codes, so what I'm asking is: 1. do I have to have each single file for each hyper-link? Can I put them together? how? 2. how can I pass a db_cursor to another file? can I use db_cursor as a parameter? Obviously not. FWIW, both questions show a lack of understanding of the HTTP protocol, and you can't hope to do anything good in web programming if you don't understand at least the basics of the HTTP protocol, specially the request/response cycle. Now for a couple more practical answers: There are basically two ways to organize your url = code mapping: 1/ have only one cgi script and use querystring params to tell which action should be executed. 2/ have one cgi script per action. The choice is up to you. For a simple app like yours, the first solution is probably the most obvious : always display the seach form, if the user submitted the form also display the result list. That's how google works (wrt/ user interface I mean). Now if you still need / want to have distinct scripts and want to factor out some common code, you just put the common code in a module that you import from each script. Thank you very much! I got your meaning. The choice 1 is definitely what I want, I just cannot think about this idea by myself. Thank you again! -- http://mail.python.org/mailman/listinfo/python-list
Re: program organization question for web development with python
In message 6102316a-d6e6-4cf2-8a1b-ecc5d3247...@w15g2000pro.googlegroups.com, Hans wrote: print a href=display_tb.py?id=%stable=%scursor=%s%s/a % (record[0],table_name,cursor_name,record1) I would recommend avoiding filename extensions in your URLs wherever possible. For executables, in particular, leaving out the “.py” or “.pl” or whatever makes it easier to switch languages, should you need to in future. -- http://mail.python.org/mailman/listinfo/python-list
Re: program organization question for web development with python
Hans a écrit : (snip) Maybe I did not make my question clear. I never tried python web programing before, so I want to start from CGI. You can indeed learn quite a few things doing raw CGI - the most important one being why frameworks are a good idea !-) I read something about web framework like django, but seems it's a little bit complicated. Not that much IMHO, but being an early django user I'm probably a bit biased. Now Python is known as the language with more web frameworks than keywords, so you could probably check some lighter framework like web.py (http://webpy.org/) or flask (http://flask.pocoo.org/). my task is actually very simple: get search string from input, and then search database, print search result. I thought CGI should be good enough to do this. CGI is good enough to do any web stuff - just like assembler is good enough to write any application !-) I don't have any idea about how to organize those cgi codes, so what I'm asking is: 1. do I have to have each single file for each hyper-link? Can I put them together? how? 2. how can I pass a db_cursor to another file? can I use db_cursor as a parameter? Obviously not. FWIW, both questions show a lack of understanding of the HTTP protocol, and you can't hope to do anything good in web programming if you don't understand at least the basics of the HTTP protocol, specially the request/response cycle. Now for a couple more practical answers: There are basically two ways to organize your url = code mapping: 1/ have only one cgi script and use querystring params to tell which action should be executed. 2/ have one cgi script per action. The choice is up to you. For a simple app like yours, the first solution is probably the most obvious : always display the seach form, if the user submitted the form also display the result list. That's how google works (wrt/ user interface I mean). Now if you still need / want to have distinct scripts and want to factor out some common code, you just put the common code in a module that you import from each script. -- http://mail.python.org/mailman/listinfo/python-list
Re: program organization question for web development with python
On Sep 15, 5:33 pm, James Mills prolo...@shortcircuit.net.au wrote: On Thu, Sep 16, 2010 at 10:14 AM, Hans hans...@gmail.com wrote: I'm new to this area. Please allow me to ask some (maybe stupid) questions. Without reading the rest of your post too much. Designs are up to you, I can't comment. I can only share in a fairly common view, and that is, we'd encourage you to use a web framework as opposed to plain old CGI. cheers james -- -- James Mills -- -- Problems are solved by method Hi James, Thanks for response. Maybe I did not make my question clear. I never tried python web programing before, so I want to start from CGI. I read something about web framework like django, but seems it's a little bit complicated. my task is actually very simple: get search string from input, and then search database, print search result. I thought CGI should be good enough to do this. I don't have any idea about how to organize those cgi codes, so what I'm asking is: 1. do I have to have each single file for each hyper-link? Can I put them together? how? 2. how can I pass a db_cursor to another file? can I use db_cursor as a parameter? Thanks again! Hans -- http://mail.python.org/mailman/listinfo/python-list
Re: program organization question for web development with python
On 16/09/2010 18:19, Hans wrote: On Sep 15, 5:33 pm, James Millsprolo...@shortcircuit.net.au wrote: On Thu, Sep 16, 2010 at 10:14 AM, Hanshans...@gmail.com wrote: I'm new to this area. Please allow me to ask some (maybe stupid) questions. Without reading the rest of your post too much. Designs are up to you, I can't comment. I can only share in a fairly common view, and that is, we'd encourage you to use a web framework as opposed to plain old CGI. cheers james -- -- James Mills -- -- Problems are solved by method Hi James, Thanks for response. Maybe I did not make my question clear. I never tried python web programing before, so I want to start from CGI. I read something about web framework like django, but seems it's a little bit complicated. my task is actually very simple: get search string from input, and then search database, print search result. I thought CGI should be good enough to do this. I don't have any idea about how to organize those cgi codes, so what I'm asking is: 1. do I have to have each single file for each hyper-link? Can I put them together? how? 2. how can I pass a db_cursor to another file? can I use db_cursor as a parameter? I recently wrote a web-based program using CherryPy, which was very straightforward. That might suit your needs. -- http://mail.python.org/mailman/listinfo/python-list
Re: program organization question for web development with python
Another pretty web framework is Bottle (http://bottle.paws.de). It is very easy to setup and use. I use it to tasks like this one you want. []s iuri On Thu, Sep 16, 2010 at 3:01 PM, MRAB pyt...@mrabarnett.plus.com wrote: On 16/09/2010 18:19, Hans wrote: On Sep 15, 5:33 pm, James Millsprolo...@shortcircuit.net.au wrote: On Thu, Sep 16, 2010 at 10:14 AM, Hanshans...@gmail.com wrote: I'm new to this area. Please allow me to ask some (maybe stupid) questions. Without reading the rest of your post too much. Designs are up to you, I can't comment. I can only share in a fairly common view, and that is, we'd encourage you to use a web framework as opposed to plain old CGI. cheers james -- -- James Mills -- -- Problems are solved by method Hi James, Thanks for response. Maybe I did not make my question clear. I never tried python web programing before, so I want to start from CGI. I read something about web framework like django, but seems it's a little bit complicated. my task is actually very simple: get search string from input, and then search database, print search result. I thought CGI should be good enough to do this. I don't have any idea about how to organize those cgi codes, so what I'm asking is: 1. do I have to have each single file for each hyper-link? Can I put them together? how? 2. how can I pass a db_cursor to another file? can I use db_cursor as a parameter? I recently wrote a web-based program using CherryPy, which was very straightforward. That might suit your needs. -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
program organization question for web development with python
Hi,
I'm new to this area. Please allow me to ask some (maybe stupid)
questions.
I'm planning to write a web application which used for searching my
mysql database.
1. files organization
I have this in my main.py:
print a href=display_tb.py?id=%stable=%scursor=%s%s/a %
(record[0],table_name,cursor_name,record1)
it kind of works but not comfortable to me.
Do I have to use two files(main.py and display_tb.py)? does that means
each hyper-link needs a single file? Can I put those files together
and then they can share variables,classes, modules, etc?
2. database cursor as parameter?
I created database cursor in my main.py and then I have to use it in
another file(display_tb.py), Can I? I put cursor as a parameter and
try to send it through hyper-link. but it somehow does not work.
error log listed below:
/usr/lib/cgi-bin/display_tb.py in ()
20 sql_str = SELECT * FROM %s % search_str_list
21 print p%s/p % sql_str
22 cursor_ptr.execute(sql_str)
23 result = cursor_ptr.fetchall()
24
cursor_ptr = 'MySQLdb.cursors.Cursor object at 0xb786b36c',
cursor_ptr.execute undefined, sql_str = 'SELECT * FROM env_test where
id=20 '
type 'exceptions.AttributeError': 'str' object has no attribute
'execute'
args = ('str' object has no attribute 'execute',)
message = 'str' object has no attribute 'execute'
--
http://mail.python.org/mailman/listinfo/python-list
Re: program organization question for web development with python
On Thu, Sep 16, 2010 at 10:14 AM, Hans hans...@gmail.com wrote: I'm new to this area. Please allow me to ask some (maybe stupid) questions. Without reading the rest of your post too much. Designs are up to you, I can't comment. I can only share in a fairly common view, and that is, we'd encourage you to use a web framework as opposed to plain old CGI. cheers james -- -- James Mills -- -- Problems are solved by method -- http://mail.python.org/mailman/listinfo/python-list
program organization question
Basically my program simulates the Medical Residency Match, generating simulated data, running the match and then summarizing results. Currently it does this all in one document (starting conditions--Gen data--run match--summarize results). I will be running multiple simulations on different starting condition and data generation. My question is how should I organize this. My plane was to have a separate document for staring conditions, data generation because these will change for each simulation. Then on for the match a summarizing data as this will always be the same except for saving the results as different names. I don't even know how to pass data from on program to another although I think I can figure this out. Any guidance? Thanks Vincent Davis -- http://mail.python.org/mailman/listinfo/python-list
