SELinux Portage and Python2.7

Hi again,

I noticed a bunch of AVCs during my weekly update that look like a 
shortfall in the portage policy?

For example:

----
time->Wed Dec 14 09:50:23 2016
type=PROCTITLE msg=audit(1481709023.487:245940):
proctitle=707974686F6E322E37002F7573722F6C696236342F707974686F6E322E372F736974652D7061636B616765732F696E636C7564655F7365727665722F696E636C7564655F7365727665722E7079002D2D706F7274002F746D702F6469737463632D70756D702E31676D4479492F736F636B6574002D2D7069645F66696C65002Ftype=PATH 
msg=audit(1481709023.487:245940): item=1 
name="/dev/shm/tmpdC4SvU.include_server-27263-1" inode=4596172 dev=00:13 
mode=040700 ouid=250 ogid=250 rdev=00:00 
obj=staff_u:object_r:portage_tmpfs_t nametype=CREATE
type=PATH msg=audit(1481709023.487:245940): item=0 name="/dev/shm/" 
inode=8351 dev=00:13 mode=041777 ouid=0 ogid=0 rdev=00:00 
obj=system_u:object_r:tmpfs_t nametype=PARENT
type=CWD msg=audit(1481709023.487:245940): 
cwd="/var/tmp/portage/sys-devel/libtool-2.4.6-r2/work/libtool-2.4.6"
type=SYSCALL msg=audit(1481709023.487:245940): arch=c000003e syscall=83 
success=yes exit=0 a0=c94da980 a1=1c0 a2=0 a3=1e1 items=2 ppid=27262 
pid=27263 auid=4294967295 uid=250 gid=250 euid=250 suid=250 fsuid=250 
egid=250 sgid=250 fsgid=250 tty=pts2 ses=4294967295 comm="python2.7" 
exe="/usr/bin/python2.7" subj=staff_u:sysadm_r:portage_sandbox_t key=(null)
type=AVC msg=audit(1481709023.487:245940): avc:  denied  { create } for  
pid=27263 comm="python2.7" name="tmpdC4SvU.include_server-27263-1" 
scontext=staff_u:sysadm_r:portage_sandbox_t 
tcontext=staff_u:object_r:portage_tmpfs_t tclass=dir permissive=1

And another AVC:

 > type=AVC msg=audit(1481709072.864:245941): avc:  denied  { rmdir } 
for pid=27263 comm="python2.7" name="tmpdC4SvU.include_server-27263-1"
 > dev="tmpfs" ino=4596172 scontext=staff_u:sysadm_r:portage_sandbox_t 
tcontext=staff_u:object_r:portage_tmpfs_t tclass=dir permissive=1

Looks like python is trying to create/remove directories within 
portage_tmpfs_t, and looking at the existing permissions:

 > allow portage_sandbox_t portage_tmpfs_t:dir { search read lock 
getattr write ioctl remove_name open add_name };

suggests that it does not have the necessary permissions (e.g. create)?

Thanks

Robert Sharp