mt940parser
A parser for Swift MT940 documents built using the PLY parser generator, tested on Python 3
About this project
This package is intended to help extract meaningful information from MT940 documents, a format commonly used by banks to exchange financial information.
MT940 can be parsed as a context-free grammar. This project attempts to describe the syntax of MT940 in Backus–Naur Form which is understood by PLY, a widely used Parser generator written in pure Python.
Project Status
This project is not under active development - it was originally written as a technical demo of how financial data can be parsed using the PLY tool. You have my permission to use this code in your commercial project (subject to license), and I am happy to answer technical questions if they are raised as issues on the GitHub project.
Installation
The project is hosted on the Python Package Index. You can install it into your current Python environment using the Pip installation tool:
pip install mt940parserDemo
from mt940.parser import parse
import pprint
message = """{1:F01HBOSXXXXAXXX9999999999}{2:I940HBOSXXXXXXXXN}{3:{108:0000000019708714}}{4:
:20:2267602902375194
:25:301775/00059707
:28C:00065/001
:60M:C140401GBP10,10
:61:1404010401C1,NCHGNONREF
REFUNDED CHARGES REF : 493
:86:4547
:61:1404010401D1,NINTNONREF
O/DRAFT INTEREST
:61:1404010401C1,NMSCNONREF
F/FLOW ACCOUNTNAME TFRPAYMENTRE
:86:FERENCE12
:61:1404010401D1,NMSCNONREF
PHOENIX DIS F/FLOW TFRPAYROLL85
:86:412368943
:61:1404010401C1,NMSCNONREF
LTCPTTAM1CBK137 BGCPAYMENTRE
:86:FERENCE34
:61:1404010401D1,NMSCNONREF
TEST BENEFICIARY DDPAYMENTRE
:86:FERENCE34
:61:1404010401D1,NSTONONREF
LTCPTTAM1CBK138 SO
:61:1404010401C1,NMSCNONREF
REDLIONCOURTLONDON FPI
:86:FASTERPAYMENTREF01
100000000000000315
301775 10
12MAR14 07:24
:61:1404010401C1,NMSCNONREF
REDLIONCOURTLONDON FPI
:86:STANDINGORDER12345
FTRT00000000000315
301775 30
12MAR14 07:24
:61:1404010401D1,NMSCNONREF
BENEFICIARY FPO
:86:200000000000000890
REFERENCE123456
301775 10
18APR14 10:44
:61:1404010401C1,NMSCNONREF
500021
:61:1404010401D1,NMSCNONREF
000016
:61:1404010401C1,NMSCNONREF
FROM A/C TFR00059618
:86:301775
:61:1404010401D1,NMSCNONREF
TO A/C TFR00059707
:86:301775
:61:1404010401C1,NMSCNONREF
FROM A/C TFR00059618
:86:301775
:61:1404010401D1,NMSCNONREF
TO A/C TFR00059707
:86:301775
:61:1404010401C2,NMSCNONREF
INTEREST (NET)
:61:1404010401D1,NMSCNONREF
FT148090898341 FOREIGN E
:86:UR
:61:1404010401D1,NMSCNONREF
FT148090949341 FOREIGN U
:86:SD
:62F:C140401GBP10,10
:64:C140401GBP10,10
:65:C140402GBP10,10
:65:C140406GBP10,10
:65:C140407GBP10,10
-}"""
pprint.pprint(parse(message))The output looks like this:
{'1': 'F01HBOSXXXXAXXX9999999999',
'2': 'I940HBOSXXXXXXXXN',
'3': {'108': '19708714'},
'4': [('20', '2267602902375194'),
('25', '301775/59707'),
('28C', '65/1'),
('60M', 'C140401GBP10,10'),
('61', '1404010401C1,NCHGNONREF\nREFUNDED CHARGES REF : 493'),
('86', '4547'),
('61', '1404010401D1,NINTNONREF\nO/DRAFT INTEREST'),
('61', '1404010401C1,NMSCNONREF\nF/FLOW ACCOUNTNAME TFRPAYMENTRE'),
('86', 'FERENCE12'),
('61', '1404010401D1,NMSCNONREF\nPHOENIX DIS F/FLOW TFRPAYROLL85'),
('86', '412368943'),
('61', '1404010401C1,NMSCNONREF\nLTCPTTAM1CBK137 BGCPAYMENTRE'),
('86', 'FERENCE34'),
('61', '1404010401D1,NMSCNONREF\nTEST BENEFICIARY DDPAYMENTRE'),
('86', 'FERENCE34'),
('61', '1404010401D1,NSTONONREF\nLTCPTTAM1CBK138 SO'),
('61', '1404010401C1,NMSCNONREF\nREDLIONCOURTLONDON FPI'),
('86',
'FASTERPAYMENTREF01\n'
'100000000000000315\n'
'301775 10\n'
'12MAR14 07:24'),
('61', '1404010401C1,NMSCNONREF\nREDLIONCOURTLONDON FPI'),
('86',
'STANDINGORDER12345\n'
'FTRT00000000000315\n'
'301775 30\n'
'12MAR14 07:24'),
('61', '1404010401D1,NMSCNONREF\nBENEFICIARY FPO'),
('86',
'200000000000000890\nREFERENCE123456\n301775 10\n18APR14 10:44'),
('61', '1404010401C1,NMSCNONREF\n500021'),
('61', '1404010401D1,NMSCNONREF\n16'),
('61', '1404010401C1,NMSCNONREF\nFROM A/C TFR00059618'),
('86', '301775'),
('61', '1404010401D1,NMSCNONREF\nTO A/C TFR00059707'),
('86', '301775'),
('61', '1404010401C1,NMSCNONREF\nFROM A/C TFR00059618'),
('86', '301775'),
('61', '1404010401D1,NMSCNONREF\nTO A/C TFR00059707'),
('86', '301775'),
('61', '1404010401C2,NMSCNONREF\nINTEREST (NET)'),
('61', '1404010401D1,NMSCNONREF\nFT148090898341 FOREIGN E'),
('86', 'UR'),
('61', '1404010401D1,NMSCNONREF\nFT148090949341 FOREIGN U'),
('86', 'SD'),
('62F', 'C140401GBP10,10'),
('64', 'C140401GBP10,10'),
('65', 'C140402GBP10,10'),
('65', 'C140406GBP10,10'),
('65', 'C140407GBP10,10')]}Further Reading
For more information please refer to:
- MT940 Explained
- TECHNICAL DESCRIPTION OF THE MT940 STATEMENT FORMAT FOR BUSINESS 24
- SWIFT MT 940 Customer Statement Message and SWIFT MT 942 Interim Transaction Report
Software License
Copyright (c) 2015 Salim Fadhley
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
