Defining Numeric Field Widths

[dennytron]

A great feature would be to define or read the width of numeric fields.

For example, specify an integer field in a dbf to be 10 digits wide or a double or float field to be a width of 12 digits and 6 decimals.

Thanks!
Dennis

[sgillies]

Try this on for size:

{ 'code': 'int:10', 
  'length': 'float:12.6' }

Basically just like

>>> print("%10d" % 4)  
         4
>>> print("%12.6f" % 10.0)
   10.000000

Would that work? When reading, however, float precision would be lost unless we used Python decimals.

[dennytron]

Hi Sean,

Yeah! That looks really nice and easy. When printing the schema of a dataset would it show { 'code': 'int:10', 'length': 'float:12.6' } ?

That looks great!

Dennis

[sgillies]

Yep.

[sgillies]

Fixed in 22c6165.