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README.md
19
README.md
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# BNP PDF statement parser
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Depends on `pdftotext`.
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Assuming file hierarchy like:
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```
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.
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├── compte_de_cheques/
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│ ├── 2022/
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│ │ ├── 20221121.pdf
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│ │ └── 20221221.pdf
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│ └── 2023/
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│ ├── 20230123.pdf
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│ └── 20230221.pdf
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livret_a/
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├── 20230721.pdf
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└── 20240122.pdf
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```
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@ -1,106 +1,79 @@
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#!/usr/bin/env python
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#!/usr/bin/python3
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import os
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import matplotlib.pyplot as plt
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import matplotlib.ticker as ticker
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from datetime import datetime
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from utils import getDatetimeFromFileName, getMonthIndexSinceEpoch, getMonthNameFromMonthIndex, readPdfBankStatement
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import operator
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from pprint import pprint
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# Depends on `pdftotext`.
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PATH = f'/home/benjamin/Desktop/bens_folder/bazaar/documents/bnp/bank_statements/'
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import os, subprocess, re, config
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os.chdir(PATH)
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path = f'/home/benjamin/Desktop/bens_folder/bazaar/documents/bnp/RLV_CHQ_{config.RLV_CHQ}'
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PRINT_TRANSACTIONS = False
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os.chdir(path)
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MAIN_BANK_ACCOUNT = 'compte_de_cheques'
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'''
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Assuming file hierarchy like:
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allTransactions = []
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monthlyTransactions = {}
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2022
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├── 20221121.pdf
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└── 20221221.pdf
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2023
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├── 20230123.pdf
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└── 20230221.pdf
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'''
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def appendTransactions(transactions, bankAccount):
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global allTransactions
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for transaction in transactions:
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transaction['bank account'] = bankAccount
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allTransactions += [transaction]
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date = transaction['date'].replace(day = 1)
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monthlyTransactions[date] = monthlyTransactions.get(date, []) + [transaction]
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def execute(command):
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return subprocess.check_output(command).decode('utf-8')
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def getTextFromPdf(pdfPath):
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return execute(['pdftotext', '-raw', pdfPath, '-')
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firstLineOfPaymentRegex = re.compile('\d{2}\.\d{2} \d{2}\.\d{2} \d+,\d{2}')
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endPageAfterTheFirstOneRegex = re.compile('P\. \d+/\d+')
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soldeCrediteurAuRegex = re.compile('SOLDE CREDITEUR AU \d{2}\.\d{2}\.\d{4}')
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for folder in os.listdir():
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if folder != MAIN_BANK_ACCOUNT:
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for file in os.listdir(folder):
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#folder = '2022'
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#file = '20220321.pdf'
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filePath = f'{folder}/{file}'
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print(filePath)
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transactions = readPdfBankStatement(filePath)[3]
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pprint(transactions)
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appendTransactions(transactions, folder)
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content = getTextFromPdf(filePath)
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lines = content.splitlines()
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started = False
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firstPage = True
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initialAmount = None
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currentAmount = None
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date = None
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comment = []
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for line in lines:
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if not started:
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# We are interested in the content after this line:
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if soldeCrediteurAuRegex.match(line) is not None or (line.startswith('Date Nature des opérations Valeur Débit Crédit') and not firstPage):
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if soldeCrediteurAuRegex.match(line):
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initialAmount = float(soldeCrediteurAuRegex.sub('', line).replace(',', '.').replace(' ', ''))
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currentAmount = initialAmount
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print('Initial amount', initialAmount)
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print()
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started = True
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continue
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else:
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# We aren't interested in the content after this line:
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if line.startswith('BNP PARIBAS SA au capital de') or endPageAfterTheFirstOneRegex.match(line) is not None:
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firstPage = False
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started = False
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continue
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# We aren't interested in the content after this line
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elif line.startswith('TOTAL DES OPERATIONS'):
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break
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if firstLineOfPaymentRegex.match(line) is not None:
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if date is not None:
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print(date, valeur, amount, currentAmount)
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print('\n'.join(comment))
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print()
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date, valeur, amount = line.split()
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amount = float(amount.replace(',', '.'))
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currentAmount -= amount
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comment = []
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else:
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comment += [line]
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break
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break
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os.chdir(f'{MAIN_BANK_ACCOUNT}/')
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for folder in sorted(os.listdir()):
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for file in sorted(os.listdir(folder)):
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filePath = f'{folder}/{file}'
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print(filePath)
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transactions = readPdfBankStatement(filePath)[3]
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appendTransactions(transactions, MAIN_BANK_ACCOUNT)
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if PRINT_TRANSACTIONS:
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pprint(transactions)
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#break
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#break
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allTransactions.sort(key = operator.itemgetter('date'))
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print(len(allTransactions))
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#pprint(allTransactions)
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import re
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VIRT_A_CPTE_EMIS_SUR_LE_REGEX = re.compile('VIRT CPTE A CPTE EMIS SUR LE\n(CEL|LEP|LVJ|L\.A|LDD)\\d{23}')
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# Could precise bank account to restrict own account comments.
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def isTransactionFromOwnAccounts(comment):
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#if comment.startswith('DEPOT INITIAL DU COMPTE\n'):
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# print(comment)
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#if comment.startswith('VIR CPTE A CPTE EMIS /MOTIF '):
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# print(comment)
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return comment.startswith('DEPOT INITIAL DU COMPTE\n') or \
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comment.startswith('VIR CPTE A CPTE EMIS /MOTIF ') or \
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VIRT_A_CPTE_EMIS_SUR_LE_REGEX.match(comment)#comment.startswith('VIRT CPTE A CPTE EMIS SUR LE')
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#comment.startswith('VIR CPTE A CPTE RECU /DE ') or \
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# and comment.endswith('/REFDO /REFBEN')
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#allTransactions = [transaction for transaction in allTransactions if not isTransactionFromOwnAccounts(transaction['comment'])]
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sortedMonths = sorted(monthlyTransactions.keys())
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for month in sortedMonths:
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monthlyTransactions[month] = [transaction for transaction in monthlyTransactions[month] if not isTransactionFromOwnAccounts(transaction['comment'])]
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totalMonthlyDebits = [sum([min(transaction['amount'], 0) for transaction in monthlyTransactions[month]]) for month in sortedMonths]
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totalMonthlyCredits = [sum([max(transaction['amount'], 0) for transaction in monthlyTransactions[month]]) for month in sortedMonths]
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totalMonthlyDifferences = [sum([transaction['amount'] for transaction in monthlyTransactions[month]]) for month in sortedMonths]
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totals = [monthlyTransactions[sortedMonths[0]][0]['current amount'] + sum(totalMonthlyDifferences[:monthIndex + 1]) for monthIndex in range(len(sortedMonths))]
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fig, ax = plt.subplots()
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plt.title('BNP accounts monthly debits and credits')
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plt.xlabel('Date')
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plt.ylabel('€')
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ALPHA = 0.5
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xTicks = range(getMonthIndexSinceEpoch(sortedMonths[0]), getMonthIndexSinceEpoch(sortedMonths[-1]) + 1)
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totalMonthlyAmountAndLabel = (
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(totalMonthlyDebits, 'Debit'),
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(totalMonthlyCredits, 'Credit'),
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(totalMonthlyDifferences, 'Difference'),
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(totals, 'Total'),
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)
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for totalMonthlyAmount, totalMonthlyLabel in totalMonthlyAmountAndLabel:
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plt.bar(xTicks, totalMonthlyAmount, alpha = ALPHA, label = totalMonthlyLabel)
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plt.legend()
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#plt.yscale('symlog')
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ax.yaxis.set_major_formatter(ticker.StrMethodFormatter('{x:,}'))
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ticksLabels = [getMonthNameFromMonthIndex(monthIndex) for monthIndex in xTicks]
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plt.xticks(xTicks, ticksLabels, rotation = 90)
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#plt.tight_layout()
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# How to show the horizontal lines for subticks?
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plt.grid(axis = 'y')
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plt.show()
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119
utils.py
119
utils.py
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import subprocess
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from datetime import datetime
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import re
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# For not-greedy `?`, see Source: [the Stack Overflow answer 766377](https://stackoverflow.com/a/766377)
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FIRST_LINE_OF_PAYMENT_REGEX = re.compile('\\ +(\\d{2}\\.\\d{2})\\ +([A-Z\\d /.()*\\-,]+?)\\ +(\\d{2}\\.\\d{2})\\ +([\\d ]+,\\d{2})')
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END_PAGE_AFTER_THE_FIRST_ONE_REGEX = re.compile(' +RELEVE ((DE (COMPTE (CHEQUES|D\'EPARGNE LOGEMENT|LEP))|LIVRET (A|JEUNE))|LIVRET DEV. DURABLE ET SOLIDAIRE) +P\\. \\d+/\\d+')
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SOLDE_CREDITEUR_AU_REGEX = re.compile('\\ +SOLDE CREDITEUR AU (\\d{2}\\.\\d{2}\\.\\d{4})\\ +([\\d ]+,\\d{2})')
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TOTAL_DES_OPERATIONS_REGEX = re.compile('\\ +TOTAL\\ DES\\ OPERATIONS\\ +([\\d ]+,\\d{2})\\ +([\\d ]+,\\d{2})')
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TOTAL_DES_OPERATIONS_CREDIT_ONLY_REGEX = re.compile('\\ +TOTAL\\ DES\\ OPERATIONS\\ +([\\d ]+,\\d{2})')
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COLUMNS_HEADER = re.compile(' +Date +Nature des opérations +Valeur +Débit +Crédit')
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def execute(command):
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return subprocess.check_output(command).decode('utf-8')
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def getTextFromPdf(pdfPath):
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return execute(['pdftotext', '-layout', pdfPath, '-'])
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def getDatetimeFromFileName(aDatetimeStr):
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aDatetime = datetime(int(aDatetimeStr[:4]), int(aDatetimeStr[4:6]), 1)
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return aDatetime
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def getMonthIndexSinceEpoch(aDatetime):
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return aDatetime.year * 12 + aDatetime.month
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def getMonthNameFromMonthIndex(monthIndex):
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return datetime((monthIndex - 1) // 12, 1 + (monthIndex - 1) % 12, 1).strftime('%b %Y')
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def toFloat(group):
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return float(group.replace(',', '.').replace(' ', ''))
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def getDateFollowing(date, initialDate):
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date = datetime.strptime(date, '%d.%m').replace(year = initialDate.year)
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# To support new year.
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if date < initialDate:
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date = date.replace(year = date.year + 1)
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return date
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def readPdfBankStatement(filePath):
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file = filePath.split('/')[-1]
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fileDatetime = getDatetimeFromFileName(file)
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content = getTextFromPdf(filePath)
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lines = content.splitlines()
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started = False
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firstPage = True
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initialAmount = None
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initialDate = None
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currentAmount = None
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date = None
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comment = []
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transactions = []
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debitIndex = None
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creditIndex = None
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for line in lines:
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if not started:
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# We are interested in the content after this line:)
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soldeCrediteurAuRegexMatch = SOLDE_CREDITEUR_AU_REGEX.fullmatch(line)
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if COLUMNS_HEADER.fullmatch(line) is not None:
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getIndex = lambda line, type_: line.index(type_) + len(type_)
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debitIndex = getIndex(line, 'Débit')
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creditIndex = getIndex(line, 'Crédit')
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if soldeCrediteurAuRegexMatch is not None or (COLUMNS_HEADER.fullmatch(line) is not None and not firstPage):
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if soldeCrediteurAuRegexMatch is not None:
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initialDate = datetime.strptime(soldeCrediteurAuRegexMatch.group(1), '%d.%m.%Y')
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initialAmount = toFloat(soldeCrediteurAuRegexMatch.group(2))
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print(f'{initialAmount=}')
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currentAmount = initialAmount
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started = True
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continue
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else:
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# We aren't interested in the content after this line:
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if line.startswith('BNP PARIBAS SA au capital de') or END_PAGE_AFTER_THE_FIRST_ONE_REGEX.fullmatch(line) is not None:
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firstPage = False
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started = False
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continue
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# We aren't interested in the content after this line
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else:
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totalDesOperationsRegexMatch = TOTAL_DES_OPERATIONS_REGEX.fullmatch(line)
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totalDesOperationsCreditOnlyRegexMatch = TOTAL_DES_OPERATIONS_CREDIT_ONLY_REGEX.fullmatch(line)
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if totalDesOperationsRegexMatch is not None or totalDesOperationsCreditOnlyRegexMatch is not None:
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# Note that transfer between accounts will be noted in both debits and credits, as trying to cancel would make benefits show as negative debit which does not make sense.
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# Cannot just consider January as benefits only as `20240122.pdf` also contains an additional transfer between my accounts.
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if totalDesOperationsRegexMatch is not None:
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totalMonthlyDebit, totalMonthlyCredit = [toFloat(group) for group in totalDesOperationsRegexMatch.groups()]
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else:
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totalMonthlyCredit = toFloat(totalDesOperationsCreditOnlyRegexMatch.group(1))
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totalMonthlyDebit = 0
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print(f'{totalMonthlyDebit=}')
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print(f'{totalMonthlyCredit=}')
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break
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firstLineOfPaymentRegexMatch = FIRST_LINE_OF_PAYMENT_REGEX.fullmatch(line)
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if firstLineOfPaymentRegexMatch is not None:
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if date is not None:
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transactions += [{
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'date': getDateFollowing(date, initialDate),
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'valeur': getDateFollowing(valeur, initialDate),
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'amount': amount,
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'current amount': currentAmount,
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'comment': '\n'.join(comment)
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}]
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date = None
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date, firstCommentLine, valeur, amount = firstLineOfPaymentRegexMatch.groups()
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lineLen = len(line)
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amount = toFloat(amount)
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if abs(debitIndex - lineLen) < abs(creditIndex - lineLen):
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amount *= -1
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currentAmount += amount
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comment = [firstCommentLine]
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elif line != '':
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comment += [line.strip()]
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if date is not None:
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transactions += [{
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'date': getDateFollowing(date, initialDate),
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'valeur': getDateFollowing(valeur, initialDate),
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'amount': amount,
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'current amount': currentAmount,
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'comment': '\n'.join(comment)
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}]
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return initialAmount, totalMonthlyDebit, totalMonthlyCredit, transactions, fileDatetime
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