I'm trying to read rows from a table. I wrote the table with a
dictionary descriptor, which looks like {'label':
tables.StringCol(16), 'x':tables. Float64Col(), 'y':tables.
Float64Col()}
tbl = h5File.createTable(gp, tblName, tblDict, title='')
If I read the whole table with tbl.read() I get an array of records,
with the field names 'label', 'x', 'y', just as expected.
However, I can't figure out how to read one row at a time and get a
record array. I've tried:
r = [row[:] for row in tbl]
I get back a list with an item per row, but the rows are tuples, not
record arrays. How can I read the rows and get record arrays?
A second question. Ultimately I want to read only rows with certain
'label' fields. I have a set of labels, labelSet, and I want to get
the rows with labels in that set:
r = [ row[:] for row in tbl if (row['label'] in labelSet)]
Is there a better/faster way to select those rows?
thanks,
-robert
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