diff --git a/utils/list_exempt.py b/utils/list_exempt.py
index 34e7d9d4..0d0cac5b 100755
--- a/utils/list_exempt.py
+++ b/utils/list_exempt.py
@@ -12,12 +12,12 @@ def make_output(ldap):
     machines_avec_exemption = ldap.search(u"exempt=*")
     output = []
 
-    for m in machines_avec_exemption:
+    for machine in machines_avec_exemption:
         # texte pour la machine
-        txt =  u''
-        txt += u'Propriétaire : %s\n' % m.proprio()
-        txt += u'Machine      : %s\n' % m['host'][0]
-        txt += u'destination  : %s\n' % ', '.join([unicode(i) for i in m['exempt']])
+        txt = u''
+        txt += u'Propriétaire : %s\n' % machine.proprio()
+        txt += u'Machine      : %s\n' % machine['host'][0]
+        txt += u'destination  : %s\n' % ', '.join([unicode(i) for i in machine['exempt']])
 
         output.append(txt.strip())
     return output
@@ -26,4 +26,4 @@ if __name__ == '__main__':
     LDAP = shortcuts.lc_ldap_readonly()
     OUTPUT = make_output(LDAP)
 
-    print '\n- - - - - - = = = = = = # # # # # # # # = = = = = = - - - - - -\n'.join(OUTPUT).encode(out_encoding)
+    print u'\n- - - - - - = = = = = = # # # # # # # # = = = = = = - - - - - -\n'.join(OUTPUT).encode(out_encoding)
diff --git a/utils/list_firewall.py b/utils/list_firewall.py
index 8657e022..d4040761 100755
--- a/utils/list_firewall.py
+++ b/utils/list_firewall.py
@@ -1,32 +1,43 @@
 #!/bin/bash /usr/scripts/python.sh
 # -*- coding: utf-8 -*-
+#
+# list_firewall.py --- Liste les machines disposant de droits
+# particuliers en ce qui concerne leurs ports accessibles.
+"""Liste les machines dont certains ports sont whielistés par
+le parefeu"""
 
 from lc_ldap import shortcuts
+from config.encoding import out_encoding
 
-ldap = shortcuts.lc_ldap_readonly()
+def make_output(ldap):
+    """Génère un texte à afficher"""
+    machines_speciales = ldap.search(u"(|(portTCPin=*)(portTCPout=*)(portUDPin=*)(portUDPout=*))")
 
-machines = ldap.search(u"(|(portTCPin=*)(portTCPout=*)(portUDPin=*)(portUDPout=*))")
+    output = []
 
-txts = []
+    for machine in machines_speciales:
+        # On se fiche des machines crans
+        if machine['objectClass'][0] not in ["machineFixe", "machineWifi"]:
+            continue
 
-for m in machines :
-    # On se fiche des machines crans
-    if m['objectClass'][0] not in ["machineFixe","machineWifi"]:
-        continue
+        # texte pour la machine
+        txt = u''
+        txt += u'Propriétaire  : %s\n' % machine.proprio()
+        txt += u'Machine       : %s\n' % machine['host'][0]
+        if machine['portTCPin']:
+            txt += u'ports TCP in  : %s\n' % ' '.join([unicode(port) for port in machine['portTCPin']])
+        if machine['portTCPout']:
+            txt += u'ports TCP out : %s\n' % ' '.join([unicode(port) for port in machine['portTCPout']])
+        if machine['portUDPin']:
+            txt += u'ports UDP in  : %s\n' % ' '.join([unicode(port) for port in machine['portUDPin']])
+        if machine['portUDPout']:
+            txt += u'ports UDP out : %s\n' % ' '.join([unicode(port) for port in machine['portTCPout']])
 
-    # texte pour la machine
-    txt =  u''
-    txt += u'Propriétaire  : %s\n' % str(m.proprio()).decode('utf8')
-    txt += u'Machine       : %s\n' % m['host'][0]
-    if m['portTCPin']:
-        txt += u'ports TCP in  : %s\n' % ' '.join([unicode(port) for port in m['portTCPin']])
-    if m['portTCPout']:
-        txt += u'ports TCP out : %s\n' % ' '.join([unicode(port) for port in m['portTCPout']])
-    if m['portUDPin']:
-        txt += u'ports UDP in  : %s\n' % ' '.join([unicode(port) for port in m['portUDPin']])
-    if m['portUDPout']:
-        txt += u'ports UDP out : %s\n' % ' '.join([unicode(port) for port in m['portTCPout']])
+        output.append(txt.strip())
+    return output
 
-    txts.append(txt.strip())
+if __name__ == '__main__':
+    LDAP = shortcuts.lc_ldap_readonly()
+    OUTPUT = make_output(LDAP)
 
-print '\n- - - - - - = = = = = = # # # # # # # # = = = = = = - - - - - -\n'.join(txts)
+    print u'\n- - - - - - = = = = = = # # # # # # # # = = = = = = - - - - - -\n'.join(OUTPUT).encode(out_encoding)