Hang on subscripted access to request.subprocess_env.

• Key: MODPYTHON-187
• Type: Bug
• Status: Closed
• Resolution: Fixed
• Priority: Major
• Assignee: Graham Dumpleton
• Reporter: Alan Kennedy
• Component/s: core
• Affects Version/s: 3.2.10
• Fix Version/s: 3.3.1

Environment

Apache: 2.0.59
ModPython: 3.2.10
Python: 2.4
OS: Windows Server 2003

Description

When subscripted access is used to access variable 'SCRIPT_FILENAME' in the request.subprocess_env table/mapping, the code hangs.

The following snippet illustrates the problem.

# -=-=-=-=-=-=

def postreadrequesthandler(request):
  request.add_common_vars()
  value = request.subprocess_env['SCRIPT_FILENAME'] # This hangs
# value = request.subprocess_env.get('SCRIPT_FILENAME')# This works
  return apache.OK

# -=-=-=-=-=-=

The strange thing is that the .get() access works fine: only the subscript hangs?

If anyone is wondering about a use-case, I don't actually have one. I was just iterating over the contents of the request.subprocess_env using a for loop (code below), and found that the code hung when accessing 'SCRIPT_FILENAME', and not for any other variable.

# -=-=-=
request.add_common_vars()
d = {}
for sek in request.subprocess_env.keys():
  d[sek] = request.subprocess_env[sek]
# -=-=-=