A Friday 15 February 2008, Kevin Christman escrigué:
> sorry about the mangled table and un-indented code. Here is the
> formatting preserved:
> http://docs.google.com/View?docid=dcmrvf8_31cfvc7vfs
>
> So I recognize that row.append() should be applied only *once*, and
> that my current code is bad. However, my question then is *how* does
> one fill the subrows with data? For example, after filling in the
> sub-sub-row with 25% and 80% how do I proceed to fill in the next
> sub-sub-row with 50% and 85%?
Sorry, but I don't get the question. Here it is an example on how to
fill nested records:
************************************************************
class Info(IsDescription):
"""A sub-structure of Test"""
_v_pos = 2 # The position in the whole structure
name = StringCol(10)
value = Float64Col(pos=0)
colors = Enum(['red', 'green', 'blue'])
class NestedDescr(IsDescription):
"""A description that has several nested columns"""
color = EnumCol(colors, 'red', base='uint32')
info1 = Info()
class info2(IsDescription):
_v_pos = 1
name = StringCol(10)
value = Float64Col(pos=0)
class info3(IsDescription):
x = Float64Col(dflt=1)
y = UInt8Col(dflt=1)
fileh = openFile(filename, "w")
table = fileh.createTable(fileh.root, 'table', NestedDescr)
# Fill the table with some rows
row = table.row
for i in range(10):
row['color'] = colors[['red', 'green', 'blue'][i%3]]
row['info1/name'] = "name1-%s" % i
row['info2/name'] = "name2-%s" % i
row['info2/info3/y'] = i
# All the rest will be filled with defaults
row.append()
***************************************************************
This is an excert of the examples/nested-tut.py in the PyTables
distribution. Also, my advice is you to read the tutorial about the
usage of nested tables in Users' Guide (section 3.7).
Hope this helps,
--
>0,0< Francesc Altet http://www.carabos.com/
V V Cárabos Coop. V. Enjoy Data
"-"
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