Native Python Tasks

Here is an example of a script as a local native python task

• • definition file:

    task python
      edit ECF_MICRO '^'
      edit ECF_JOB_CMD '^ECF_JOB^ > ^ECF_JOBOUT^ 2>&1'
      label info "none"
      meter step -1 100 100
      event 1
      event 2

• • task wrapper:

    #!/usr/env python
    #python.ecf
    ^include <head.py>
    ^manual
    one liner manual ...
    ^end
    
    ^comment
    one liner
    ^end
    
    xlabel("info", "start")
    xevent("1")
    
    for step in range(0,101):
        print step
        xmeter("step", step)
    
    xevent("2")
    xlabel("info", "completion")
    ^include <tail.py>

• • headers:

    #!/usr/local/bin/python
    # head.py
    import os, sys, signal
    
    ECF_PORT = ^ECF_PORT:0^
    XSVR = "ecflow_client --port %s --host ^ECF_NODE:0^ --" % ECF_PORT
    pid = os.getpid()
    
    def xinit(): 
        os.system(XSVR + "init %s"%pid)
    def xabort(): 
        os.system(XSVR + "abort %s"%pid)
    def xcomplete(): 
        os.system(XSVR + "complete")  
    def SigHandler(signum, frame): 
        xabort(); sys.exit(0)
    
    signal.signal (signal.SIGINT,  SigHandler); # ...
    os.environ['ECF_PORT'] = "^ECF_PORT:0^"
    os.environ['ECF_NAME'] = "^ECF_NAME:0^"
    os.environ['ECF_NODE'] = "^ECF_NODE:0^"
    os.environ['ECF_PASS'] = "^ECF_PASS:0^"
    
    def xmeter(name, step):
       os.system(XSVR + "meter %s %s"%(name,step))  
    def xevent(name):
       os.system(XSVR + "event %s"%name)  
    def xlabel(name, info):
       os.system(XSVR + "label %s %s"%(name,info))
    
    signal.signal (signal.SIGHUP,  SigHandler)
    signal.signal (signal.SIGQUIT, SigHandler)
    signal.signal (signal.SIGILL,  SigHandler)
    signal.signal (signal.SIGTRAP, SigHandler)
    signal.signal (signal.SIGIOT,  SigHandler)
    signal.signal (signal.SIGBUS,  SigHandler)
    signal.signal (signal.SIGFPE,  SigHandler)
    signal.signal (signal.SIGUSR1, SigHandler)
    signal.signal (signal.SIGUSR2, SigHandler)
    signal.signal (signal.SIGPIPE, SigHandler)
    signal.signal (signal.SIGTERM, SigHandler)
    signal.signal (signal.SIGXCPU, SigHandler)
    signal.signal (signal.SIGPWR,  SigHandler)
    
    print 'start'
    xinit()

# tail.py
xcomplete()