diff --git a/bnp_pdf_statement_parser.py b/bnp_pdf_statement_parser.py
index a80c066..cf9bda3 100755
--- a/bnp_pdf_statement_parser.py
+++ b/bnp_pdf_statement_parser.py
@@ -46,7 +46,7 @@ for folder in os.listdir():
         for line in lines:
             if not started:
                 # We are interested in the content after this line:
-                if soldeCrediteurAuRegex.match(line) != None or (line.startswith('Date Nature des opérations Valeur Débit Crédit') and not firstPage):
+                if soldeCrediteurAuRegex.match(line) is not None or (line.startswith('Date Nature des opérations Valeur Débit Crédit') and not firstPage):
                     if soldeCrediteurAuRegex.match(line):
                         initialAmount = float(soldeCrediteurAuRegex.sub('', line).replace(',', '.').replace(' ', ''))
                         currentAmount = initialAmount
@@ -56,15 +56,15 @@ for folder in os.listdir():
                     continue
             else:
                 # We aren't interested in the content after this line:
-                if line.startswith('BNP PARIBAS SA au capital de') or endPageAfterTheFirstOneRegex.match(line) != None:
+                if line.startswith('BNP PARIBAS SA au capital de') or endPageAfterTheFirstOneRegex.match(line) is not None:
                     firstPage = False
                     started = False
                     continue
                 # We aren't interested in the content after this line
                 elif line.startswith('TOTAL DES OPERATIONS'):
                     break
-                if firstLineOfPaymentRegex.match(line) != None:
-                    if date != None:
+                if firstLineOfPaymentRegex.match(line) is not None:
+                    if date is not None:
                         print(date, valeur, amount, currentAmount)
                         print('\n'.join(comment))
                         print()