Passing Radio Button Data to CGI Program in Python

Radio Buttons are used when only one option is required to be selected.


Here is example HTML code for a form with two radio buttons −

<form action = "/cgi-bin/" method = "post" target = "_blank">
<input type = "radio" name = "subject" value = "maths" /> Maths
<input type = "radio" name = "subject" value = "physics" /> Physics
<input type = "submit" value = "Select Subject" />

The result of this code is the following form −

Below is script to handle input given by web browser for radio button −

# Import modules for CGI handling
import cgi, cgitb
# Create instance of FieldStorage
form = cgi.FieldStorage()
# Get data from fields
if form.getvalue('subject'):
   subject = form.getvalue('subject')
   subject = "Not set"
print "Content-type:text/html\r\n\r\n"
print "<html>"
print "<head>"
print "<title>Radio - Fourth CGI Program</title>"
print "</head>"
print "<body>"
print "<h2> Selected Subject is %s</h2>" % subject
print "</body>"
print "</html>"

Updated on: 31-Jan-2020


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