[Tutor] calculation with arrays: shape mismatch

[John]

Sorry, here's the output from the command line

>>>run Day_footprint.py
trying...
header has been opened
succes!
Reading grid 20060511000000 at: Mon Oct 29 16:57:57 2007
processing: 20060511000000


Traceback (most recent call last):
  File "Day_footprint.py", line 48, in ?
    contribution=[contribution+grid[:,:,z:,k,0]/A for z in
range(len(H['outheigh
t']))]
ValueError: shape mismatch: objects cannot be broadcast to a single shape

>>>
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