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Python library implementing the ISO-8583 banking protocol

License: GNU Lesser General Public License v2.1

Python 100.00%

py8583's Introduction

#py8583 ###Python library implementing the ISO-8583 banking protocol

This is an implementation of the de-facto protocol for banking applications, iso8583.

Status:

Things working:

iso-8583/1987 parsing and building
Support of BCD/Binary/ASCII variations in field lengths and field data (where applicable)
Python 2.7 and 3.x support

Things that will work (aka TODO List):

Proper documentation
Fully automated unit testing
1993 and 2003 specifications of the protocol

Things that might work (aka Wishlist):

Predefined (and ready to use) popular implementations
EBCDIC support

How to use:

The module's external module dependencies are:

enum34 (for python < 3.4)

This paragraph will eventually have some basic/quick examples too. Until then, please have a look at the IsoHost.py file which contains a simple server which waits for ISO messages, parses them and replies in a hardcoded manner.

License:

All the work is licensed under LGPL 2.1. Since LGPL is not very python focused, as the copyright holder, my intentions basically boil down to:

You are allowed to use the library as an API in closed source code without it being considered derivative work
You are NOT allowed to modify the library itself without publishing the changes in a compatible license

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py8583's Issues

ValueError: Unknown format code 'd' for object of type 'str'

Hello again, and sorry!

Im getting this error, i dont know if i am sending the data in wrong format ot its any else:

Thanks for help!

Traceback (most recent call last):
File "request2.py", line 49, in
Socket.send(req.BuildIso())
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\site-p
ackages\py8583\py8583.py", line 391, in BuildIso
self.BuildField(field)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\site-p
ackages\py8583\py8583.py", line 341, in BuildField
data = formatter.format(self.__FieldData[field])
ValueError: Unknown format code 'd' for object of type 'str'

`from config import *
import socket
from py8583 import *

#try:
req = py8583.Iso8583(IsoSpec = py8583spec.IsoSpec1987ASCII())

req.MTI('0200')

req.Field(2, 1)
req.FieldData(2, '5896580743857002')

req.Field(3, 1)
req.FieldData(3, '000000')

req.Field(4, 1)
req.FieldData(4, '000000000000')

req.Field(7, 1)
req.FieldData(7, '0612151557')

req.Field(11, 1)
req.FieldData(11, '000001')

req.Field(12, 1)
req.FieldData(12, '190612')

req.Field(18, 1)
req.FieldData(18, '6011')

req.Field(22, 1)
req.FieldData(22, '010')

req.Field(41, 1)
req.FieldData(41, '007899')

req.Field(42, 1)
req.FieldData(42, 'TYME')

req.Field(49, 1)
req.FieldData(49, '840')

req.PrintMessage()

Socket = socket.socket()
Socket.settimeout(socket_timeout)
Socket.connect((socket_address, socket_port))
Socket.send(req.BuildIso())

data = Socket.recv(socket_recv_size)

resp = py8583.Iso8583(data, IsoSpec = py8583spec.IsoSpec1987ASCII()) # Parse message

resp.DebugMessage()`

%s Value length larger than field maximum (6)

Hello, what is wrong in my code? I need send this card data! Thanks!

`from config import *
import socket
from py8583 import *

try:
req = py8583.Iso8583(IsoSpec = py8583spec.IsoSpec1987ASCII())

req.MTI('0200') # Set message MTI

req.Field(2, 1) 
req.FieldData(2, '5896580743857002') 

req.Field(3, 1) 
req.FieldData(3, '000000')

req.Field(4, 1) 
req.FieldData(4, '000000000000')

req.Field(7, 1) 
req.FieldData(7, '0612151557')

req.Field(11, 1) 
req.FieldData(11, '000001')

req.Field(12, 1) 
req.FieldData(12, '190612071557')

req.Field(18, 1) 
req.FieldData(18, '6011')

req.Field(22, 1) 
req.FieldData(22, '010011012110')

req.Field(41, 1) 
req.FieldData(41, '007899')

req.Field(42, 1) 
req.FieldData(42, 'TYME')

req.Field(49, 1) 
req.FieldData(49, '840')


req.PrintMessage()

# Send message - replace with your own send

Socket = socket.socket()
Socket.settimeout(socket_timeout)
Socket.connect((socket_address, socket_port))
Socket.send(req.BuildIso())

# Receive reply - replace with your own receive
data = Socket.recv(socket_recv_size)

resp = py8583.Iso8583(data, IsoSpec = py8583spec.IsoSpec1987ASCII()) # Parse message

resp.DebugMessage()

except socket.timeout:
print("\33[41m La respuesta del host ha excedido el tiempo maximo")
except Exception as e:
print("\33[41m Ha ocurrido un error: %s", e)`

    from py8583.py8583 import DT, LT, SpecError
ImportError: No module named py8583

Usage:

Do we have any documentation for this repo?

i am unable to build a message for transmitting over network

enum34 incompatible with Python 3.6 +

Hi!

Trying to install py8583 on Python 3.7 causes problems because enum34 clashes with the enum included in the standard library. It shouldn't really be required for python > 3.4.

Fix for a similar issue was this in the setup.py:

if sys.version_info < (3, 4):
    REQUIRES.append('enum34')

Could you add something similar to resolve this?