#!/usr/bin/python
# for linux
import sys
def main():
print "Content-type: text/html\n"
print "Hello World from Python"
print "Standard Hello World from a Python CGI Script"
print "well, mostly standard anyways..."
print "This version is a self printing python program that demonstrates how to use python as a CGI script "
print 'This documents my experiences using DreamHost as my hosting provider. Your milage may vary'
print "It is very important that Python CGI scripts..."
print ""
print "- have '
!#usr/bin/python' "
print "as the first line of the file
"
print "this tells the system what interpreter to use / what language it is.
"
print "This code, using that command, right now, on this host, is using Python %s
" % sys.version
print "For specific versions of Python here at Dreamhost, you could use one of ...
"
print "v2.1.3 -> #!/usr/bin/python2.1
"
print "v2.2.1 -> #!/usr/bin/python2.2
"
print "v2.3.5 -> #!/usr/bin/python2.3
"
print "v2.4.6 -> #!/usr/bin/python2.4
"
print "v2.5.2 -> #!/usr/bin/python2.5
"
print "v2.7.3 -> #!/usr/bin/python2.7
"
print "(noticing a pattern here?)"
print " "
print "- end in '
.py' "
print "- print the '
Content-type: text/html\\n' header"
print " in the first line if you want to view the output "
print "- mark the file as executable: "
print "'
chmod 755 [filename.py]' "
print "
"
print "
"
print "This is a self printing file, full source code follows
"
print 'Or you could view the source directly '
print 'helloworld.txt'
print "
"
f = open('helloworld.py')
buff = f.readlines()
print ""
for line in buff:
# remove trailing newline
line = line.rstrip()
# escape less than/greater thans from < > to < > so they are viewable in html
# side effect: in a web browser it will look like it's doing nothing ;-)
line = line.replace("<","<")
line = line.replace(">",">")
print line
print ""
print ""
if( __name__ == "__main__"):
try:
main()
except:
print "Content-type: text/html\n"
print ""
print "error?"
print ""
print "There was an error on the page"
print "Notes:
"
print " exception handling is your friend"
print " cgitb only works with current versions (>=2.3 ?) of Python
"
print " not even an except block can recover from a print "
print "without a closing quote - you'll get an error 500 from the server"
print ""
print ""