python | Python In HTML Examples https://pythoninhtmlexamples.com Showing You How You Can Use Python On Your Website Tue, 06 Oct 2020 20:31:22 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 194754043 Python Project – Online Quiz Management – Add Edit Delete https://pythoninhtmlexamples.com/python-project-online-quiz-management-add-edit-delete/?utm_source=rss&utm_medium=rss&utm_campaign=python-project-online-quiz-management-add-edit-delete Thu, 01 Oct 2020 19:43:21 +0000 https://pythoninhtmlexamples.com/?p=233 The following code will allow you to: -Enter (insert) new quizzes -Modify (Update) existing ones -Delete quizzes you don’t want. (Click image to see it in action – login with “demo” and “123”) Click here for the main project link #!/usr/bin/python print "Content-type: text/html\n\n" print "<html>" print "<head>" print "<title>Enter Quizes</title>" print "</head>" print "<body>" […]

The post Python Project – Online Quiz Management – Add Edit Delete first appeared on Python In HTML Examples.]]> The following code will allow you to:

-Enter (insert) new quizzes
-Modify (Update) existing ones
-Delete quizzes you don’t want.

(Click image to see it in action – login with “demo” and “123”)

Click here for the main project link

#!/usr/bin/python
print "Content-type: text/html\n\n"
print "<html>"
print "<head>"
print "<title>Enter Quizes</title>"
print "</head>"
print "<body>"

#GLOBAL VARIABLES
USERNAME   = 'db_user'
PASSWORD = 'pwd'
DB = 'database-name'

import MySQLdb
import os
#import requests #this script doesn't like this (doesn't fail, just blank screen)

# Import modules for CGI handling 
import cgi, cgitb

def init():
	#read the query params
	params = os.environ.get('QUERY_STRING')
	
	#DEBUG:
	#print 'params= ' + str(params)
	#print '<br>'
	#print '<br>'
	res = params.split('=') #TESTS THAT THERE IS A QUERY STRING

	#display based on if params were sent
	if  str(res) == "['']":
		#DEBUG:
		print ('You should not be here')
		print '<br>'
		print "<a href='index.py'>You need to login first.</a>"

	else:
		#DEBUG:
		#print ('some params were passed - show them')

		#get the field values
		
		form = cgi.FieldStorage() 
	 
		# Get data from fields
		if form.getvalue('quiz'):
		   quiz = form.getvalue('quiz')
		else:
		   quiz = "Not set"

		if form.getvalue('userid'):
		   userid = form.getvalue('userid')
		else:
		   userid = "Not set"

		#----------------------------
		searchParams = [i.split('=') for i in params.split('&')] #parse query string
		for key, value in searchParams:
			#DEBUG:
			#print('<b>' + key + '</b>: ' + value + '<br>\n')
			
			#show the quizzes for user and allow for data entry	
			if key == 'id':
				#when the form initializes, it should be blank
				print("<h2>Enter And List Quizzes</h2>")	
				quiz = "Not set"
				userid = value

				show_form(value)
				#********************
				#insert the contents of the form into the table	
				#********************
								
				show_table(userid)
			elif key == 'insert':				
				print("<h2>Insert Record</h2>")	
				insert_values(userid,quiz) 	
								
				show_table(userid)	
				
			elif key == 'edit':
				print("<h2>Edit Record</h2>")	
				#uses cgi to parse the querystring, and ability to access individual arguments
				userid = cgi.parse_qs( params )["user"][0]
				qid = cgi.parse_qs( params )["edit"][0]

				#-------------------------	
				#show the clicked record.
				conn = MySQLdb.connect('localhost',USERNAME,PASSWORD,DB)
				cursor = conn.cursor()           
				sql = "SELECT qui_quiz FROM tblQuizzes WHERE qui_id=" + qid     
   				
				cursor.execute(sql)
				conn.commit()
				for row in cursor:
					qui_quiz = row[0]            

				# Close the connection
				conn.close()
				#-------------------------
				
				#show the edit version of the form
				show_form_edit(userid,qid,qui_quiz)					
							
				show_table(userid)	
			elif key == 'edit2':
				
				userid = form.getvalue('userid')
				qid = form.getvalue('qid')
				qui_quiz = form.getvalue('qui_quiz')
				update_values(qid,qui_quiz,userid)
								
				show_table(userid)
			elif key == 'delete':
				print("<h2>Delete Record</h2>")	
				#uses cgi to parse the querystring, and ability to access individual arguments
				userid = cgi.parse_qs( params )["user"][0]
				delete_values(value,userid)
								
				show_table(userid)	
				
		#----------------------------

def insert_values(userid,quiz):
	
	#DEBUG	
	#print ("<br><br>insert_values<br><br>")
	#print ("userid="+ str(userid) + "<br>")
	#print ("quiz="+ str(quiz) + "<br>")

	conn = MySQLdb.connect('localhost',USERNAME,PASSWORD,DB)

	cursor = conn.cursor()

	#Python will handle the escape string for apostrophes and other invalid SQL characters for you
	
	# %d or %i should be used for integer or decimal values.
	# %s is used for string values
	sql = "INSERT INTO tblQuizzes (qui_user_id,qui_quiz) VALUES (%s, %s)"
	args=(userid, quiz)
	
	try:		
		cursor.execute(sql, args)
		
		#add this to make sure you data is being inserted
		conn.commit()
		print "<br><font color=green>****************RECORD INSERTED****************</font><br>"
		print ("<h3><a href='enter-quizzes.py?id=" + str(userid) + "'>Back</a></h3>")
	except error as e:
		print("error")
		print(e)
		return None	
	
	# Close the connection
	conn.close()

def update_values(quiz_id,quiz,userid):
	#DEBUG	
	#print("edit = " + str(quiz) + " - for QUIZ=" + str(quiz_id) + "<br>")
	
	conn = MySQLdb.connect('localhost',USERNAME,PASSWORD,DB)

	cursor = conn.cursor()

	#Python will handle the escape string for apostrophes and other invalid SQL characters for you

	sql = "UPDATE tblQuizzes SET qui_quiz = %s WHERE qui_id =%s"
	cursor.execute(sql, (quiz,quiz_id))
	conn.commit()
	print '<br><font color=green>**************Record Updated**************<br>'
	print ("<h3><a href='enter-quizzes.py?id=" + str(userid) + "'>Back</a></h3>")
	# Close the connection
	conn.close()

def delete_values(arg,userid):

	#DEBUG
	#print("delete = " + arg + " - for user=" + userid + "<br>")

	conn = MySQLdb.connect('localhost',USERNAME,PASSWORD,DB)

	cursor = conn.cursor()

	sql="DELETE FROM tblQuizzes WHERE qui_id=" + arg
		
	try:
		cursor.execute(sql)
		conn.commit()

		print "<br><font color=red>****************RECORD DELETED****************</font><br>"
		print ("<h3><a href='enter-quizzes.py?id=" + str(userid) + "'>Back</a></h3>")
	except error as e:
		print(e)
		return None		
		print "<br><font color=red>****************DELETION FAILED!****************</font><br>"

	# Close the connection
	conn.close()

def show_table(userid):
	#DEBUG:	
	#print("show table<br>")
	conn = MySQLdb.connect('localhost', USERNAME,PASSWORD,DB)

	cursor = conn.cursor()

	sql="SELECT * FROM tblQuizzes WHERE qui_user_id = " + userid 

	#DEBUG:
	#print("<br>" + str(sql) + "<br>")

	cursor.execute(sql)

	# Get the number of rows in the result set
	numrows = cursor.rowcount

	print "<table width='100%' border='1px'>"
	print "<th>Edit</th><th>Delete</th><th>Quiz</th>"
	# Get and display all the rows
	for row in cursor:

		qid = row[0]
		quiz = row[1]

		print '<tr>'
		print '<td width=2%>'
		print "<a href='enter-quizzes.py?edit=" + str(qid) + "&user="+str(userid)+"'>Edit</a>" #need to convert the index to a string
		print '</td>'
		print '<td width=2%>'
		print "<a href='enter-quizzes.py?delete=" + str(qid) + "&user="+str(userid)+"'>Delete</a>" #need to convert the index to a string
		print '</td>'
		print '<td>' + row[2] + '</td>'
		print '</tr>'

	print '</table>';

	# Close the connection
	conn.close()

def show_form(userid):
	#DEBUG:	
	#print("show form<br>")
	print "<form action = 'enter-quizzes.py?insert=1' method = 'post'>"

	print "<table width='100%' border='0px' bgcolor=lightgreen>"
	print "<tr>"
	print "<td><strong>User:</strong></td>"        
	print "<td><input type = 'text' style='background-color:grey' readonly name = 'userid' value='" + str(userid) + "'></td>"
	print "</tr>"

	print "<tr>"
	print "<td><strong>Quiz:</strong></td>"        
	print "<td><input type = 'text' name = 'quiz' value=''></td>"
	print "</tr>"

	print "<tr>"
	print "<td><input type = 'submit' value = 'Submit' /></td>"
	print "</tr>"

	print "</table>"

	print "</form>"

def show_form_edit(userid,qid,qui_quiz):
	#DEBUG:	
	#print("show form<br>")
	print "<form action = 'enter-quizzes.py?edit2=1' method = 'post'>"

	print "<table width='100%' border='0px' bgcolor=lightgreen>"
	print "<tr>"
	print "<td><strong>User:</strong></td>"        
	print "<td><input type = 'text' readonly style='background-color:grey' name = 'userid' value='" + str(userid) + "'></td>"
	print "</tr>"
	print "<tr>"
	print "<td><strong>Quiz ID:</strong></td>"        
	print "<td><input type = 'text' readonly style='background-color:grey' name = 'qid' value='" + str(qid) + "'></td>"
	print "</tr>"

	print "<tr>"
	print "<td><strong>Quiz:</strong></td>"        
	print "<td><input type = 'text' name = 'qui_quiz' value='" + str(qui_quiz) + "'></td>"
	print "</tr>"

	print "<tr>"
	print "<td><input type = 'submit' value = 'Submit' /></td>"
	print "</tr>"

	print "</table>"

	print "</form>"


#start here:
init()


print "</body>"
print "</html>"

Click For A Working Sample

FacebooktwitterredditpinterestlinkedinmailThe post Python Project – Online Quiz Management – Add Edit Delete first appeared on Python In HTML Examples.]]> 233 How To Insert Python In Your HTML Page https://pythoninhtmlexamples.com/how-to-insert-python-in-your-html-page/?utm_source=rss&utm_medium=rss&utm_campaign=how-to-insert-python-in-your-html-page Mon, 01 Jul 2019 21:41:41 +0000 http://pythoninhtmlexamples.com/?p=6 In order for you to include python in your html applications you first need to have python running on your webserver. Since most webservers, like Hostgator, are installed with some flavor of Linux, python should already be there. Hostgator, by the way, was the easiest webhost to get my python scripts up and running on. […]

The post How To Insert Python In Your HTML Page first appeared on Python In HTML Examples.]]> In order for you to include python in your html applications you first need to
have python running on your webserver.

Since most webservers, like Hostgator, are installed with some flavor of Linux, python should already be there.

Hostgator, by the way, was the easiest webhost to get my python scripts up and running on.

All I needed to do was set the permissions of the python file and folder to 755 (chmod 755) (reference the image), and add a htaccess file in the folder (reference the image for the htaccess syntax), which says that it’s ok to run python , .py, files.

All the htaccess file has in it is this:

“Addhandler cgi-script .py”

–> It’s just the text above, but here is the file anyway:

Here is a picture of what my setup looks like (including how to set the file permissions to 755 using FileZilla):

Here’s what the script looks like when it works:

http://pythoninhtmlexamples.com/files/test2.py

#!/usr/bin/python
print "Content-type: text/html\n\n";
print "<html><head>";
print "<title>Python Test</title>";
print "</head><body>";
print "<p>This will print the contents of my Python script</p>";
print "</body></html>";

In order to run a python script on your webserver, you are going to have to include “#!/usr/bin/python” on the first row of your script. You basically have to “tell” the webserver that you are about to run a python script, and you want the python interpreter located in the /usr/bin/python directory to interpret the script.

This should be the result of running the script:

It will interpret the script, and not just output the text of the file.

“print” in python does the same thing as “echo” in php, and outputs the content to your screen.

Let me know if you need help.

FacebooktwitterredditpinterestlinkedinmailThe post How To Insert Python In Your HTML Page first appeared on Python In HTML Examples.]]> 6