Fixed Width

This module supports generation of fixed width data. Mostly needed when dealing with output from legacy Mainframe systems

To generate completely random data

from genie_pkg import fw_genie
number_of_decimals = 3
colspecs = [
      (5, 'float', 3), (3, 'int'), (10, 'str'),
      (10, 'date', '%Y/%m/%d'),
      (15, 'email', 'mail.com'),
      (10, 'myval', 'returnasis')
   ]
nrows = 10
encoding = 'windows-1252'
for d in fw_genie.generate(colspecs, nrows, encoding):
   do_something(d)

If you want to just anonymise some parts of your fixed width data (Say to remove piis etc)

from genie_pkg import fw_genie
input_encoding = 'utf-8'
row = 'FReNG£Ni£iFthtR¥ubOswUPhmQWJoypvF¢MFcR'.encode(input_encoding)

cols_anonymise_specs = [(0, 5, 'int'), (28, 38, 'float')]
anonymised = fw_genie.anonymise_columns(row,  anonymous_col_specs=cols_anonymise_specs, encoding=input_encoding)
do_something(anonymised)

Fixed width supports below types

• float (If number of decimal places are not passed, it will default to 2).

  Length is inclusive of decimal places.

• int

• date (Make sure format is valid python datetime format.

  If the length passed does not match what the format produces, exception will be raised.)

• str

• email (if domain is not passed, it will default to dummy.com).

  Length is inclusive of domain you specify.

• one_of (list of choices) returns random choice from the list passed.

  If the length does not match, it will throw exception. Useful for things like product codes