[Zope-dev] Zopeservice and sitecustomize

[Sake]

Hi,

I have Zope and Activestate Python installed together in the same win-xp 
machine.  Everything works fine until I've learned that I can put 
"sys.setdefaultencoding('cp874')" into sitecustomize.py to accomodate my 
native language coding.  Since I do that, my Zope 2.7.0 service can no 
longer start.  I can start it manually from "runzope.bat", but it never 
start through the windows system service. A full day investigation 
reveal that the trouble cause by the missing of the 
'<SOFTWARE_HOME>\lib\python' in the system environment's "PYTHONPATH".  
The "runzope.bat" set that up before then execution of  
"Zope.Startup.run.py", hence it run fine. But "zopeservice.py" rely on 
the "<SOFTWARE_HOME>\bin\Lib\site-packages\sitecustomize.py" to set up 
the correct "PYTHONPATH". Here is the code inside Zope's sitecustomize.py

""" Add Zope packages in Windows binary distro to sys.path automagically """
import sys
import os
try:
    sp = __file__
except:
    sp = None
if sp:
    dn = os.path.dirname
    swhome = os.path.join(dn(dn(dn(dn(sp)))), 'lib', 'python')
    if os.path.exists(swhome):
        sys.path.insert(0, swhome)

Unluckily, this sitecustomize.py is now masked with my sitecustomize.py 
inside Activestate's site-package directory, which actually get loaded 
by Zope via the Python registry load path 
(HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.3\PythonPath) instead 
of the expected one.

I don't think setting up PYTHONPATH inside sitecustomize.py is a good 
idea. Better keep this mechanism for site specific problems.  I'd rather 
insert a line into zopeservice.py like this.

import os.path
from os.path import dirname as dn
import sys

# these are replacements from mkzopeinstance
PYTHONW = r'C:\Zope-2.7.0\bin\pythonw.exe'
SOFTWARE_HOME=r'C:\Zope-2.7.0\lib\python'
INSTANCE_HOME = r'C:\Zope-MIB'
ZOPE_HOME = r'C:\Zope-2.7.0'

ZOPE_RUN = r'%s\Zope\Startup\run.py' % SOFTWARE_HOME
CONFIG_FILE= os.path.join(INSTANCE_HOME, 'etc', 'zope.conf')
PYTHONSERVICE_EXE=r'%s\bin\PythonService.exe' % ZOPE_HOME

sys.path.insert(0, SOFTWARE_HOME)
os.environ['PYTHONPATH'] = SOFTWARE_HOME  <---------------- inserted line

from nt_svcutils.service import Service

servicename = 'Zope_%s' % str(hash(INSTANCE_HOME))

class InstanceService(Service):
    start_cmd = '"%s" "%s" -C "%s"' % (PYTHONW, ZOPE_RUN, CONFIG_FILE)
    _svc_name_ = servicename
    _svc_display_name_ = 'Zope instance at %s' % INSTANCE_HOME
    _exe_name_ = PYTHONSERVICE_EXE

if __name__ == '__main__':
    import win32serviceutil
    win32serviceutil.HandleCommandLine(InstanceService)



This is much more palatable in my opinion.