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#!/usr/bin/env python
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"""
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Re-write config file and optionally convert to python
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"""
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__revision__ = "$Id: writeCfg.py,v 1.16 2009/03/05 16:49:56 spiga Exp $"
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__version__ = "$Revision: 1.16 $"
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import sys, getopt
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import imp
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import os
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import pickle
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from random import SystemRandom
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from ProdCommon.CMSConfigTools.ConfigAPI.CfgInterface import CfgInterface
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from FWCore.ParameterSet.Config import include
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import FWCore.ParameterSet.Types as CfgTypes
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MyRandom = SystemRandom()
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class ConfigException(Exception):
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"""
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Exceptions raised by writeCfg
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"""
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def __init__(self, msg):
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Exception.__init__(self, msg)
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self._msg = msg
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return
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def __str__(self):
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return self._msg
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def main(argv) :
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"""
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writeCfg
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- Read in existing, user supplied cfg or pycfg file
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- Modify job specific parameters based on environment variables
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- Write out modified cfg or pycfg file
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required parameters: none
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optional parameters:
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--help : help
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--debug : debug statements
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"""
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# defaults
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inputFileNames = None
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parentFileNames = None
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debug = False
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_MAXINT = 900000000
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try:
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opts, args = getopt.getopt(argv, "", ["debug", "help"])
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except getopt.GetoptError:
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print main.__doc__
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sys.exit(2)
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try:
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CMSSW = os.environ['CMSSW_VERSION']
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parts = CMSSW.split('_')
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CMSSW_major = int(parts[1])
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CMSSW_minor = int(parts[2])
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CMSSW_patch = int(parts[3])
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except (KeyError, ValueError):
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msg = "Your environment doesn't specify the CMSSW version or specifies it incorrectly"
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raise ConfigException(msg)
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# Parse command line options
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for opt, arg in opts :
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if opt == "--help" :
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print main.__doc__
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sys.exit()
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elif opt == "--debug" :
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debug = True
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# Parse remaining parameters
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try:
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fileName = args[0]
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outFileName = args[1]
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except IndexError:
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print main.__doc__
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sys.exit()
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# Optional Parameters
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maxEvents = int(os.environ.get('MaxEvents', '0'))
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skipEvents = int(os.environ.get('SkipEvents','0'))
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firstEvent = int(os.environ.get('FirstEvent','-1'))
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compHEPFirstEvent = int(os.environ.get('CompHEPFirstEvent','0'))
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firstRun = int(os.environ.get('FirstRun', '0'))
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nJob = int(os.environ.get('NJob', '0'))
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inputFiles = os.environ.get('InputFiles','')
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parentFiles = os.environ.get('ParentFiles','')
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preserveSeeds = os.environ.get('PreserveSeeds','')
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incrementSeeds = os.environ.get('IncrementSeeds','')
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# Read Input cfg or python cfg file, FUTURE: Get rid cfg mode
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if fileName.endswith('py'):
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handle = open(fileName, 'r')
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try: # Nested form for Python < 2.5
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try:
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print "Importing .py file"
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cfo = imp.load_source("pycfg", fileName, handle)
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cmsProcess = cfo.process
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except Exception, ex:
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msg = "Your pycfg file is not valid python: %s" % str(ex)
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raise ConfigException(msg)
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finally:
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handle.close()
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else:
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try:
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print "Importing .cfg file"
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cfo = include(fileName)
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cmsProcess = cfo
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except Exception, ex:
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msg = "The cfg file is not valid, %s\n" % str(ex)
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raise ConfigException(msg)
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cfg = CfgInterface(cmsProcess)
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# Set parameters for job
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print "Setting parameters"
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inModule = cfg.inputSource
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if maxEvents:
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cfg.maxEvents.setMaxEventsInput(maxEvents)
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if skipEvents:
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inModule.setSkipEvents(skipEvents)
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if firstEvent != -1:
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cmsProcess.source.firstEvent = CfgTypes.untracked(CfgTypes.uint32(firstEvent))
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if compHEPFirstEvent:
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cmsProcess.source.CompHEPFirstEvent = CfgTypes.int32(compHEPFirstEvent)
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if inputFiles:
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inputFiles = inputFiles.replace('\\','')
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inputFiles = inputFiles.replace('"','')
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inputFileNames = inputFiles.split(',')
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inModule.setFileNames(*inputFileNames)
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# handle parent files if needed
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if parentFiles:
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parentFiles = parentFiles.replace('\\','')
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parentFiles = parentFiles.replace('"','')
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parentFileNames = parentFiles.split(',')
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inModule.setSecondaryFileNames(*parentFileNames)
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# Pythia parameters
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if (firstRun):
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inModule.setFirstRun(firstRun)
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incrementSeedList = []
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preserveSeedList = []
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if incrementSeeds:
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incrementSeedList = incrementSeeds.split(',')
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if preserveSeeds:
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preserveSeedList = preserveSeeds.split(',')
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# FUTURE: This function tests the CMSSW version and presence of old-style seed specification.
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# Reduce when we drop support for old versions
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if cfg.data.services.has_key('RandomNumberGeneratorService'): # There are random #'s to deal with
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print "RandomNumberGeneratorService found, will attempt to change seeds"
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ranGenerator = cfg.data.services['RandomNumberGeneratorService']
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ranModules = getattr(ranGenerator, "moduleSeeds", None)
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oldSource = getattr(ranGenerator, "sourceSeed", None)
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if ranModules != None or oldSource != None: # Old format present, no matter the CMSSW version
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print "Old-style random number seeds found, will be changed."
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if oldSource != None:
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sourceSeed = int(ranGenerator.sourceSeed.value())
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if ('sourceSeed' in preserveSeedList) or ('theSource' in preserveSeedList):
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pass
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elif ('sourceSeed' in incrementSeedList) or ('theSource' in incrementSeedList):
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ranGenerator.sourceSeed = CfgTypes.untracked(CfgTypes.uint32(sourceSeed+nJob))
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else:
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ranGenerator.sourceSeed = CfgTypes.untracked(CfgTypes.uint32(MyRandom.randint(1, _MAXINT)))
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for seed in incrementSeedList:
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curSeed = getattr(ranGenerator.moduleSeeds, seed, None)
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if curSeed:
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curValue = int(curSeed.value())
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setattr(ranGenerator.moduleSeeds, seed, CfgTypes.untracked(CfgTypes.uint32(curValue+nJob)))
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preserveSeedList.append(seed)
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if ranModules != None:
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for seed in ranGenerator.moduleSeeds.parameterNames_():
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if seed not in preserveSeedList:
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curSeed = getattr(ranGenerator.moduleSeeds, seed, None)
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if curSeed:
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curValue = int(curSeed.value())
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setattr(ranGenerator.moduleSeeds, seed,
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CfgTypes.untracked(CfgTypes.uint32(MyRandom.randint(1,_MAXINT))))
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elif CMSSW_major > 2 or (CMSSW_major == 2 and CMSSW_minor >= 1): # Treatment for seeds, CMSSW 2_1_x and later
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print "New-style random number seeds found, will be changed."
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from IOMC.RandomEngine.RandomServiceHelper import RandomNumberServiceHelper
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randSvc = RandomNumberServiceHelper(ranGenerator)
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# Increment requested seed sets
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for seedName in incrementSeedList:
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curSeeds = randSvc.getNamedSeed(seedName)
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newSeeds = [x+nJob for x in curSeeds]
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randSvc.setNamedSeed(seedName, *newSeeds)
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preserveSeedList.append(seedName)
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# Randomize remaining seeds
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randSvc.populate(*preserveSeedList)
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else:
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print "Neither old nor new seed format found!"
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# End version specific code
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# Write out new config file in one format or the other, FUTURE: Get rid of cfg mode
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outFile = open(outFileName,"w")
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if outFileName.endswith('py'):
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outFile.write("import FWCore.ParameterSet.Config as cms\n")
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outFile.write("import pickle\n")
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outFile.write("pickledCfg=\"\"\"%s\"\"\"\n" % pickle.dumps(cmsProcess))
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outFile.write("process = pickle.loads(pickledCfg)\n")
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if (debug):
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print "writeCfg output (May not be exact):"
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print "import FWCore.ParameterSet.Config as cms"
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print cmsProcess.dumpPython()
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else:
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outFile.write(cfg.data.dumpConfig())
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if (debug):
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print "writeCfg output:"
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print str(cfg.data.dumpConfig())
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outFile.close()
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if __name__ == '__main__' :
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exit_status = main(sys.argv[1:])
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sys.exit(exit_status)
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