insufficient permission privileges to create folders

Hi. I am wondering if anyone here has encountered a similar issue. In my project, I create folders for every new submission received and currently, I get a "[Errno 13] Permission denied: 'user'" when my script executes the "os.makedirs" command. I am assuming that the user refers to my account "zwei" but is there anyway to verify this?

I came across some earlier posts of a similar nature and changed the facl for the project to see if they would work. Currently, running "getfacl" returns me the following result:

file: <<projectname>>
owner: zwei
group: zwei
user::rwx
user:zwei:rwx
group::rwx
group:zwei:rwx
mask::rwx
other::r-x
default:user::rwx
default:group::r-x
default:other::r-x

I'm not exactly familiar with File Access Control List but am I missing something here? I am also including the tracestack below for reference.

File "/home/zwei/webapps/{project}/{app}/models.py", line 163, in save_upload
  os.makedirs(usrtmpdir, mode=0775)
File "/usr/local/lib/python2.7/os.py", line 150, in makedirs
  makedirs(head, mode)
File "/usr/local/lib/python2.7/os.py", line 150, in makedirs
  makedirs(head, mode)
File "/usr/local/lib/python2.7/os.py", line 157, in makedirs
  mkdir(name, mode)
OSError: [Errno 13] Permission denied: 'user'

Thanks in advance. I've been spending way too much time stuck at this problem...