In [1]:
from fixed_files import Fixed_files
ff = Fixed_files(r'C:\BNB\S303\GERADOS\Json\B303W80.json', dic=False, checklength=False)
records = open(r'C:\BNB\S303\GERADOS\Json\B303W80.txt').readlines()
rec_in = []

In [2]:
for record in records:
    rec_in.append(ff.parse(record))
rec_in


Out[2]:
[Record(progr_w80=12345, saldo_ant_cz_w80=123456789012345.12, saldo_ant_um_w80=123456789012.12344)]

In [3]:
for rec in rec_in:
    print rec


Record(progr_w80=12345, saldo_ant_cz_w80=123456789012345.12, saldo_ant_um_w80=123456789012.12344)

In [5]:
for n, r in enumerate(rec_in):
    print records[n]
    print ff.unparse(r)
    print ff.unparse(r) == records[n]


1234512345678901234512+12345678901212345+

1234512345678901234512+12345678901212344+

False

In [7]:
'8102018'[::-1] == '8102018'


Out[7]:
True

In [4]:
'flavio'[::-1]


Out[4]:
'oivalf'