Ask Your Question » Tutorial http://askbahar.com Lets Talk Sun, 11 Mar 2012 09:50:24 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 How to run Python scripts in your shared hosting server http://askbahar.com/2010/10/28/how-to-run-python-scripts-in-your-shared-hosting-server/ http://askbahar.com/2010/10/28/how-to-run-python-scripts-in-your-shared-hosting-server/#comments Thu, 28 Oct 2010 03:38:18 +0000 Habib Ullah Bahar http://askbahar.com/?p=108 Direct to the how-to

First make sure your hosting supports Python. Now a days almost all shared hosting providers support Python. Find your python installation location, this is required for “shebang” line added at the top of your python script. Usually this is /usr/bin/python or /usr/local/bin/python Make sure to include two print statements which [...]]]> Direct to the how-to :)

  1. First make sure your hosting supports Python. Now a days almost all shared hosting providers support Python.
  2. Find your python installation location, this is required for “shebang” line added at the top of your python script. Usually this is /usr/bin/python or /usr/local/bin/python
  3. Make sure to include two print statements which will print the content-type and an empty line.
  4. Now put the script in cgi-bin directory inside your root public folder, usually public_html
  5. Change the permission of the script to 0755
  6. Try to browse now :)

Example, hello.py:

#! /usr/bin/python

print ‘Content-type: text/html’
print ”
print ‘Hello, World!’

Now look at the top of hello.py script, you will notice the ‘shebang’ is #! /usr/bin/python.And also the first two print statements :)

Now its little bit annoying to put all python scripts inside that cgi-bin directory. So heres what you will need to do to run a python script inside any directory…

  1. Make an empty .htaccss file inside the directory you want to drop your python scripts. (Just open the existing .htaccess file, make sure you have enabled ‘Show Hidden Files’ in cPanel File Manager or in your favorite FTP manager)
  2. Add the following two lines and save.

Options +ExecCGI
AddHandler cgi-script .py

Tips:

  1. You will get 500 error if anything goes wrong.
  2. Make sure to clear your cache, when you modify any settings/content
  3. And there is always the nice people waiting for you in hosting support section, try them :)

I hope it helps. Let me know your comment :)

]]> http://askbahar.com/2010/10/28/how-to-run-python-scripts-in-your-shared-hosting-server/feed/ 3 How to find all seven dates of any week in python http://askbahar.com/2010/10/23/find-all-seven-dates-of-week-in-python/ http://askbahar.com/2010/10/23/find-all-seven-dates-of-week-in-python/#comments Sat, 23 Oct 2010 05:23:02 +0000 Habib Ullah Bahar http://askbahar.com/?p=98 I am new to Python (in comparison to my experience in other languages) Last month I have done some experiment with python date time calculation. Also one of my project required a function, which will compute all 7 dates of any week of any year in Python.

After some learning (and searching) heres my work [...]]]> I am new to Python (in comparison to my experience in other languages) :) Last month I have done some experiment with python date time calculation. Also one of my project required a function, which will compute all 7 dates of any week of any year in Python.

After some learning (and searching) heres my work :

__author__ = "bahar"
__date__ = "$Sep 23, 2010 4:13:29 PM$"

import datetime
from time import strptime, strftime

def _getWeekDates(_Year = 0, _weekStart = 2, _weekNo = 0):
    """
        Returns a list with all the 7 dates of provided week and year (or any supplied week number)
        _year , example 2010. will be computed, if not provided
        _weekStart, (0 is Saturday, 6 is Friday) to start day of week
        _weekNo, will be computed, if not provided
    """

    now = datetime.datetime.now()
    if _Year = 0:
        _Year = now.year

    if _weekNo = 0:
        _weekNo = datetime.date(now.year,now.month,now.day).isocalendar()[1]
    WeekDates = []
    janOne = strptime('%s-01-01' % _Year, '%Y-%m-%d')

    dayOfFirstWeek = ((7-int((strftime("%u",janOne)))+ int(_weekStart)) % 7)

    if dayOfFirstWeek == 0:
        dayOfFirstWeek = 7
    dateOfFirstWeek = strptime('%s-01-%s' % (_Year, dayOfFirstWeek), '%Y-%m-%d')
    dayOne = datetime.datetime( dateOfFirstWeek.tm_year, dateOfFirstWeek.tm_mon, dateOfFirstWeek.tm_mday )
    daysToGo = 7*(int(_weekNo)-1)
    lastDay = daysToGo+6
    dayX = None
    while daysToGo = lastDay:
        dayX = dayOne + datetime.timedelta(days = daysToGo)
        resultDateX = strptime('%s-%s-%s' % (dayX.year, dayX.month, dayX.day), '%Y-%m-%d')
        WeekDates.append(strftime("%Y-%m-%d", resultDateX))
        daysToGo += 1
    return WeekDates

if __name__ == '__main__':
        now = datetime.datetime.now()
        weekNo = datetime.date(now.year,now.month,now.day).isocalendar()[1]

        WeekData = _getWeekDates()
        days = ['Monday', 'Tuesday', 'Wedensday', 'Thursday', 'Friday', 'Saturday', 'Sunday']
        result = dict(zip(days, WeekData))

        for day in days:
            print day ,':', result[day]

Output:

Monday : 2010-10-18
Tuesday : 2010-10-19
Wedensday : 2010-10-20
Thursday : 2010-10-21
Friday : 2010-10-22
Saturday : 2010-10-23
Sunday : 2010-10-24

For Python date time related functions/modules, I find this site useful: http://www.tutorialspoint.com/python/python_date_time.htm

Any suggestion/advice via comments are welcome :)

]]> http://askbahar.com/2010/10/23/find-all-seven-dates-of-week-in-python/feed/ 2 How to generate getter/setter in PHP easily http://askbahar.com/2010/07/14/generate-getter-setter-in-php-easily/ http://askbahar.com/2010/07/14/generate-getter-setter-in-php-easily/#comments Wed, 14 Jul 2010 04:21:16 +0000 Habib Ullah Bahar http://askbahar.com/?p=70 For one of my current project I need to write getter/setter functions for 20+ variables. You know, how annoying it is! Well, I can use magic quotes, but I don’t like it. More over getter setter will help you later to use the class when your IDE (in my case Netbeans) [...]]]> For one of my current project I need to write getter/setter functions for 20+ variables. You know, how annoying it is! Well, I can use magic quotes, but I don’t like it. More over getter setter will help you later to use the class when your IDE (in my case Netbeans) supports auto complete suggestion. Though all Java development environments allow to generate getter and setter code automatically.
Then I started coding a php script for generating getter/setter for supplied variables, but I was lucky as suddenly I thought “why don’t I look for something like this online” :)

And here is the link I got, its quite good. http://www.icurtain.co.uk/getset.php, It saved my time.

]]> http://askbahar.com/2010/07/14/generate-getter-setter-in-php-easily/feed/ 0 How to enable Apache HTTP Authentication using PHP http://askbahar.com/2009/11/11/enable-apache-http-authentication-using-php/ http://askbahar.com/2009/11/11/enable-apache-http-authentication-using-php/#comments Wed, 11 Nov 2009 09:24:39 +0000 Habib Ullah Bahar http://askbahar.com/?p=48 The easiest way to password-protect a site is to use HTTP Authentication, where if a browser’s request for a protected page is not accompanied by the correct username and password, the Web server replies with an HTTP 401 error – which means “Unauthorized Access” – and an invitation for the browser to re-submit the request [...]]]> The easiest way to password-protect a site is to use HTTP Authentication, where if a browser’s request for a protected page is not accompanied by the correct username and password, the Web server replies with an HTTP 401 error – which means “Unauthorized Access” – and an invitation for the browser to re-submit the request with a proper username and password. From the user’s point of view, most of this dialogue is hidden. Following that first failed request, the browser prompts the user (in a dialog box) for a username and password, and then re-submits the request, this time with the authentication information attached. Assuming the username/password combo is on the list of allowed users, the Web server then sends the page requested. The Web browser will likewise continue to send that username/password with all subsequent requests.

Look at the following code:



 Authorization Failed
 
 
Authorization Failed

 
Without a valid username and password,
    access to this page cannot be granted.
    Please click 'reload' and enter a
    username and password when prompted.
 

 
 ";

if (!isset($_SERVER['PHP_AUTH_USER']) || $_SERVER['PHP_AUTH_USER']!==$site_user || $_SERVER['PHP_AUTH_PW']!==$site_pass)
   {
       header("WWW-Authenticate: Basic realm=\"Protected Page: Enter your username and password for access.\"");
       header("HTTP/1.0 401 Unauthorized");
       exit($failure_msg);
   }

?>

For each page, you want to authenticate user, each page must have the above code. You can save this code to a script (for example auth.php) and include auth.php to any page, hence save yourself from rewriting the code for each page.

]]> http://askbahar.com/2009/11/11/enable-apache-http-authentication-using-php/feed/ 6