Interesting problem with running a python script in a c wrapper.

Wayne Ringling wayne at tbnets.com
Mon Sep 10 01:58:19 CEST 2001


 I have been progressing on my project and ran into this little problem.  I
have a script that is wrapped with the c wrapper from the python /Misc dir
and when I run it from my web server I  get the error below:  I show my
script first and then the error.

login.py--------------------------------------------------------------

 #!/usr/bin/python

import config, keys, misc, shelve, anydbm


config = config.Confload()
encrypt_key = keys.generate_shortkey()
remote_ip = misc.grab_remoteip()

session_key_dbm = shelve.open(config.files.session_key_dbm, 'c')
session_key_dbm.close()

session_key_dbm = shelve.open(config.files.session_key_dbm)
session_key_dbm[encrypt_key] = remote_ip


print "Content-type: html/text\n\n"
print "<html><head></head><title>Test Page</title>"
print "<body>"
for key in session_key_dbm.keys():
	print key, " -> ", session_key_dbm[key],"\n<br>"

print "</body></html>"

session_key_dbm.close()
login.py--------------------------------------------------------------------

/var/log/httpd/error_log----------------------------------------------------
Traceback (most recent call last):
  File "/freesite-cgi/login.py", line 13, in ?
    session_key_dbm = shelve.open(config.files.session_key_dbm)
  File "/usr/lib/python2.0/shelve.py", line 157, in open
    return DbfilenameShelf(filename, flag)
  File "/usr/lib/python2.0/shelve.py", line 147, in __init__
    Shelf.__init__(self, anydbm.open(filename, flag))
  File "/usr/lib/python2.0/anydbm.py", line 86, in open
    return mod.open(file, flag, mode)
  File "/usr/lib/python2.0/dbhash.py", line 8, in open
    return bsddb.hashopen(file, flag, mode)
bsddb.error: (21, 'Is a directory')
[Sun Sep  9 21:42:35 2001] [error] [client 216.181.182.140] Premature end of
script headers: /usr/local/httpd/cgi-bin/login
/var/log/httpd/error_log----------------------------------------------------

Now I know that "config.files.session_key_dbm" does =
"/usr/local/freesite/sessionkey_dbm"

It creates the dbm in the correct dir and then when it goes to read it.  I
get the above error in my http server log. And the server sends a 500 error
to the web browser.

My server is a Suse 7.2 running Apache and mod_python.  Not sure if this
info helps but you never know.

Btw the script works fine from the command line. Any Ideas?

Wayne





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