For the record, I committed the proper fix:

-    if existPp: ppDirs.prepend(existPp)
+    if existPp: ppDirs = existPp.split(":") + ppDirs

(right in the master branch)


Jacek



On 02/19/2014 07:57 PM, Daniel L. Wang wrote:
> Hi Bill,
>
> Sorry about that. You are indeed correct! It's a bug. If you haven't
> figured it out already, the right fix is probably to replace:
>      if existPp: ppDirs.prepend(existPp)
> with:
>      if existPp: ppDirs = existPp.split(":") + existPp
>
> ...right? I haven't tested it, but it looks much more sensible than what
> it replaces.
>
>
> Let me know if it does/doesn't work.
>
> Hope this helps!
> -Daniel
>
> On 02/19/2014 04:01 PM, Bill Chickering wrote:
>> Hi Daniel -
>>
>> I've made progress with the new qserv, but I'm still running into
>> problems. Queries are failing with:
>> ERROR 4110 (Proxy): Qserv error: error locking result, check qserv/db
>> config.
>>
>> In my effort to debug this, I'm having difficulty rebuilding qserv. I
>> thought the following should work:
>> export PYTHONPATH=$QSERV_BASE/qserv/core/bld/dist
>> export LD_LIBRARY_PATH=$QSERV_BASE/lib/mysql:$QSERV_BASE/lib
>> pwd $QSERV_BASE/qserv/core
>> scons
>>
>> but this yields:
>> scons: Reading SConscript files ...
>> Building into bld
>> using custom.py
>> AttributeError: 'list' object has no attribute 'prepend':
>>   File "/u1/bchick/src/qserv-modules/core/SConstruct", line 17:
>>     exports=['env', 'ARGUMENTS'])
>>   File "/usr/lib/scons/SCons/Script/SConscript.py", line 614:
>>     return method(*args, **kw)
>>   File "/usr/lib/scons/SCons/Script/SConscript.py", line 551:
>>     return _SConscript(self.fs, *files, **subst_kw)
>>   File "/usr/lib/scons/SCons/Script/SConscript.py", line 260:
>>     exec _file_ in call_stack[-1].globals
>>   File "/u1/bchick/src/qserv-modules/core/bld/SConscript", line 25:
>>     custom = detect.importCustom(env, extraTgts)
>>   File "/u1/bchick/src/qserv-modules/core/site_scons/detect.py", line 189:
>>     if existPp: ppDirs.prepend(existPp)
>>
>> Am I using the correct procedure? Is this a bug?
>>
>> Thanks for your help.
>> -- Bill
>
>
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