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<== Date ==> <== Thread ==>
Subject: Re: pvaPy: PvObject - odict_keys not subscriptable issue
From: "Veseli, Sinisa via Tech-talk" <tech-talk at aps.anl.gov>
To: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>, Kuldeep Joshi <kuldeep.joshi at gmail.com>
Date: Tue, 5 Oct 2021 14:08:45 +0000
Hi,

For python3 it looks like phoebus example needs to be modified a bit. Could you please try these changes?


bluegill2> git diff app/display/model/src/main/resources/examples/table_server/server.py
diff --git a/app/display/model/src/main/resources/examples/table_server/server.py b/app/display/model/src/main/resources/exam
index 54135d7..1e1a579 100644
--- a/app/display/model/src/main/resources/examples/table_server/server.py
+++ b/app/display/model/src/main/resources/examples/table_server/server.py
@@ -54,7 +54,7 @@ def updateValue(pv):
 
 # create PVs
 tableStructDict = {'labels' : [STRING],
-                    'value' : OrderedDict([('id', [UINT]), ('name', [STRING]), ('title', [STRING])])}
+                    'value' : dict(OrderedDict([('id', [UINT]), ('name', [STRING]), ('title', [STRING])]))}
 tablePV = PvObject(tableStructDict, "epics:nt/NTTable:1.0")
 tablePV['labels'] = ['ID', 'Name', 'Title']
 namePV = PvString('')
@@ -63,5 +63,8 @@ namePV = PvString('')
 server = PvaServer('table', tablePV)
 server.addRecord('name', namePV, updateValue)
 
-raw_input("\nEnter anything to quit\n")
+try:
+    raw_input("\nEnter anything to quit\n")
+except NameError as ex:
+    input("\nEnter anything to quit\n")

The above should work on both python2 and python3.

Please let me know if you have any issues.

Thanks,

Sinisa


--
Siniša Veseli
Scientific Software Engineering & Data Management
Advanced Photon Source
Argonne National Laboratory
sveseli at anl.gov
(630)252-9182
From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Kuldeep Joshi via Tech-talk <tech-talk at aps.anl.gov>
Sent: Tuesday, October 5, 2021 1:54 AM
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: pvaPy: PvObject - odict_keys not subscriptable issue
 
Hello,
I was trying to execute a python script that is available with the phoebus example.
I am getting an "odict_keys object is not subscriptable" error.
I understand this is so for all python3.x versions. The code is getting executed on Python2.x versions
However I see that pvaPy supports python3.x. What am I doing wrong.

Regards,
Kuldeep


The console output:

phoebus/example/Display Builder/table_server$ python server.py
server.py:34: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if name is '':
Traceback (most recent call last):
  File "server.py", line 58, in <module>
    tablePV = PvObject(tableStructDict, "epics:nt/NTTable:1.0")
TypeError: 'odict_keys' object is not subscriptable
Replies:
Re: pvaPy: PvObject - odict_keys not subscriptable issue Kuldeep Joshi via Tech-talk
References:
pvaPy: PvObject - odict_keys not subscriptable issue Kuldeep Joshi via Tech-talk
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