Bug #2652

cscripts that do not derive from ctools.cscript do not show help text

Added by Knödlseder Jürgen over 6 years ago. Updated over 6 years ago.

Status:ClosedStart date:07/25/2018
Priority:NormalDue date:
Assigned To:Knödlseder Jürgen% Done:

100%

Category:-
Target version:1.6.0
Duration:

Description

When a cscript that does not derive from ctools.cscript is used with the --help option, no help text is shown and the following text is displayed on the screen (on a Mac OS X):

Usage: /usr/local/Cellar/python/2.7.11/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python [-l] [-b] [-n] [-q] [dir] [[file:]data.root] [file1.C ... fileN.C]
Options:
  -b : run in batch mode without graphics
  -x : exit on exception
  -n : do not execute logon and logoff macros as specified in .rootrc
  -q : exit after processing command line macro files
  -l : do not show splash screen
 dir : if dir is a valid directory cd to it before executing

  -?      : print usage
  -h      : print usage
  --help  : print usage
  -config : print ./configure options
  -memstat : run with memory usage monitoring

In the ctools code analysis, this scripts exit with a segmentation fault. See #2236.

Recurrence

No recurrence.

Related issues

Related to ctools - Bug #2236: Segmentation fault error occur during Python coverage mea... Closed 10/21/2017

History

#1 Updated by Knödlseder Jürgen over 6 years ago

  • Related to Bug #2236: Segmentation fault error occur during Python coverage measurement added

#2 Updated by Knödlseder Jürgen over 6 years ago

Here the list of scripts where the help text works:
  • cscaldb(ctools.cscript)
  • csebins(ctools.csobservation)
  • csfindobs(ctools.cscript)
  • csiactcopy(ctools.cscript)
  • csiactdata(ctools.cscript)
  • csiactobs(ctools.cscript)
  • csmodelmerge(ctools.cscript)
and here the list where it not works:
  • cslightcrv(ctools.csobservation)
  • csmodelinfo(ctools.cscript)

It appears that for example in csmodelmerge the following line leads to the problem:

from cscripts import modutils

Commenting the line shows the help text. This could be related to the fact that importing scripts opens a X windows connection.

#3 Updated by Knödlseder Jürgen over 6 years ago

  • % Done changed from 0 to 10

The X windows connection is open when importing csroot2caldb in the __init__.py file using the line

from cscripts.csroot2caldb  import csroot2caldb

The reason is that csroot2caldb imports ROOT, which seems to be the culprit for opening the X windows connection. Commenting out this line does no longer lead to the help text issue.

#4 Updated by Knödlseder Jürgen over 6 years ago

  • Status changed from New to Closed
  • % Done changed from 10 to 100

Merged into devel.

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