CODEWITHSUNDEEP
pythonpython-3.x
Justin Lau
Justin Lau

Reputation: 27

Adding 1 to an integer value gives TypeError

I know this is probably a super simple answer but I'm having some issues with a basic programming question.

I'm trying to program for python to add a specific variable in this case "age" + 1. It doesn't seem to be working

import cgi
form = cgi.FieldStorage()
text1 = form.getvalue("name")
text2 = int(form.getvalue("age"))
# print HTTP/HTML headers
print ("""Content-type: text/html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html><head>
<title>A CGI Script</title>
</head><body>
""")
print ("<p>Hello," +name+ ".</p>")
print ("<p>Next year you will be"  + str(age)+ 1 "years old</p>")
print ("</body></html>")

Upvotes: 2

Views: 621

Answers (4)

Antti Haapala -- Слава Україні
Antti Haapala -- Слава Україні

Reputation: 134008

There are other problems with your code; there is a empty line missing after the Content-Type header; the code could use str.format, and variables were incorrectly named. Thus:

import cgi

form = cgi.FieldStorage()

name = form.getvalue("name")
age = int(form.getvalue("age"))
age_next_year = age + 1

content = """Content-type: text/html

<!DOCTYPE html>
<html>
<head><title>A CGI Script</title></head>
<body>
<p>Hello, {name}</p>
<p>Next year, you will be {age} years old</p>
</body>
</html>"""

formatted = content.format(name=name, age=age_next_year)
print(formatted)

Upvotes: 0

gaj
gaj

Reputation: 327

I think it should be 

print ("Next year you will be " + str(age+1) + " years old.")

Upvotes: 1

MGA
MGA

Reputation: 1668

You're mixing "+" as string concatenation and variable incrementation.

It should be str(age + 1).

age = 26
print ("This year I am " + str(age) + " years old.")
print ("Next year I will be " + str(age + 1) + " years old.")

Tested at http://www.compileonline.com/execute_python3_online.php

Upvotes: 1

Hitesh Dharamdasani
Hitesh Dharamdasani

Reputation: 862

You are doing a +1 on the str in the example

print "Next year you will be  %s years old" % (int(age)+1)

Upvotes: 1

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