zope, postgresql and idle connections

hi!

i have searched a lot in these pgsql-groups and on the internet, but
found no really helpful information for my problem.

the famous error

>> database "xyz" is being accessed by other users

is my problem.

i use postgesql 7.3.2 and zope 2.6.1 (python 2.1.3).
i want to create and drop databases. creating is no problem and my
script works fine. but dropping is the problem - postgres don't wanna
drop the db (bin/dropdb). i haven't found an option that ignores these
error-messages and drops the db anyway. nor i have found any command
which allows me to manage connections.

i see the only solution in killing the connections via cmd "kill" and
searching for connections via "ps" before.

steffel   430   0.0  0.1    41572    292 std- S    Wed08AM   0:00.01
postgres: stats buffer process
steffel   431   0.0  0.1    40584    308 std- S    Wed08AM   0:00.09
postgres: stats collector process
steffel   678   0.0  0.1    41096    508  ??  S    Wed09AM   0:00.33
postgres: steffel blogger [local] idle
steffel   682   0.0  0.1    41096    508  ??  S    Wed09AM   0:00.34
postgres: steffel blogger [local] idle
steffel   758   0.0  0.1    40840    500  ??  S    10:40AM   0:00.05
postgres: steffel iug1 [local] idle
steffel   766   0.0  0.1    40840    500  ??  S    10:56AM   0:00.01
postgres: steffel iug1 [local] idle
steffel   767   0.0  0.1    41096    568  ??  S    10:56AM   0:00.04
postgres: steffel blogger [local] idle
steffel   768   0.0  0.1    40840    500  ??  S    10:56AM   0:00.02
postgres: steffel xyz [local] idle
steffel   770   0.0  0.1    40840    500  ??  S    11:00AM   0:00.03
postgres: steffel iug1 [local] idle
steffel   771   0.0  0.1    41096    568  ??  S    11:00AM   0:00.06
postgres: steffel blogger [local] idle
steffel   772   0.0  0.1    40840    500  ??  S    11:00AM   0:00.02
postgres: steffel xyz [local] idle
steffel  1006   0.0  0.2    41096    832  ??  S     1:25PM   0:00.04
postgres: steffel blogger [local] idle

is there any suggestions from you? or does anybody know how to close a
connection with zope (just "close connection" in the control panel
didn't help).
i would be

thanks a lot!
stefan felkel