SimpleFixedWidth 0.0.2

SimpleFixedWidth

A simple and very lightweight library for working with fixed width files.

Fixed_Width_Spec

class Field

Signature

Field(number: int, name: int, string: bool, size:int)

• number: int (Positional identifier for the field)
• name: str (Name of the field)
• string: bool (Indicates if the field is a string, if false it is numeric)
• size: int (Length of the field)

Example

Field(5, 'Name', True, 30)

class RecordType

Signature

RecordType(name="", fields=[])

• name: str (Name of the RecordType, if you have more than one)
• fields: list (List of fields for the specification tied to the RecordType)
• field_widths: tuple (Returns tuple of the widths from the fields)
• field_names: list (Returns list of the field names)

Fixed_Width_Record

function get_fields

Slices a string 's' in segments 'args' wide. Negative widths represent ignored padding fields.

Parameters

• s: string
• args: list of widths for the string, negative numbers are skipped

Returns string 's' in a list, minus the skipped fields

function get_line

Takes a string and extracts the record identifier if it exists.

Parameters

• string (String to be sliced into a list of fields)
• rec_type_start=-1 (If the string contains a record identifier, this will start to parse it out)
• rec_type_end=-1 (If the string contains a record identifier, this will end to parse it out)

Returns Tuple of the record identifier and the string it was in.