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<type 'exceptions.IOError'>
Python 2.7.3: /usr/bin/python
Fri Nov 24 13:41:43 2017

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /home/sabine/public_html/PYTHON/forecast.py in ()
     34 maxr=24
     35 releaspointlist=['%+d hours' % i for i in xrange(-24,37,3)]
=>   36 maxr=len(file('/xnilu_wrk/flex_wrk/GFS_FORECASTSYSTEM_SHIVA/tracerexperiment.txt').readlines()) + 1
     37 tracerreleaspointlist=['%sR' % i for i in xrange(1,maxr)]
     38 
maxr = 24, builtin len = <built-in function len>, builtin file = <type 'file'>, ).readlines = <method 'readlines' of 'file' objects>

<type 'exceptions.IOError'>: [Errno 2] No such file or directory: '/xnilu_wrk/flex_wrk/GFS_FORECASTSYSTEM_SHIVA/tracerexperiment.txt'
      args = (2, 'No such file or directory')
      errno = 2
      filename = '/xnilu_wrk/flex_wrk/GFS_FORECASTSYSTEM_SHIVA/tracerexperiment.txt'
      message = ''
      strerror = 'No such file or directory'