Premature end of script headers Error in python cgi script

Question

I am running to a problem a vps I recently moved to. I am trying to run a python cgi script, but I am getting an apache Premature end of script headers Error.

(I chmod +x the script file)

The script is pretty simple:

#!/usr/bin/env python                                      
import cgi, cgitb
cgitb.enable()

print "Content-type: text/html"
print "<html><body>hello scritp</body></html>"

Now if I name the script as test**.py** it runs fine on server. But if I do it the correct way, calling it test**.cgi** I receive a Internal Server Error.

I run the script from the terminal

./test.cgi

I get no errors

 Content-type: text/html
 <html><body>hello scritp</body></html>

Did anyone encountered before this issue? And a solution for it? :) Cheers

user956424 · Accepted Answer · 2014-07-26 07:15:33Z

10

change the header as:

print "Content-type: text/html\n\n"

answered Jul 26, 2014 at 7:15

user956424

1,6192 gold badges38 silver badges75 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Abdul Rauf · Accepted Answer · 2015-08-04 19:01:25Z

1

There must be at least an empty line between HTTP headers and body. So

print "Content-type: text/html\n" will work just fine

Reference: Wikipedia

answered Aug 4, 2015 at 19:01

Abdul Rauf

6,2706 gold badges56 silver badges76 bronze badges

3 Comments

Blair Over a year ago

That's not an empty line. That's a line including text starting with "Content-type". An empty line is a line with nothing between the previous newline character and the newline character coming at the end of the line. So yes, \n\n is required not just \n.

Abdul Rauf Jan 29 at 13:28

@Blair By default, Python's print() function adds a newline character at the end of its output. So just one explicit \n will be enough. There is no need to explicitly add two newline charactors.

Blair Apr 7 at 23:56

that's absolutely true, an additional parameter (in Python 3) or trailing comma (Python 2) is explicitly required to avoid print appending a newline. Think I may have been thinking of sys.stdout.write (which does not append a newline) which I'd gotten in the habit of using in my CGI scripts. Apologies

Collectives™ on Stack Overflow

Premature end of script headers Error in python cgi script

2 Answers 2

Comments

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related