diff --git a/library/development.po b/library/development.po
index 065142e1..c6343a20 100644
--- a/library/development.po
+++ b/library/development.po
@@ -9,7 +9,7 @@ msgstr ""
 "Project-Id-Version: Python 3.6\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2017-04-02 22:11+0200\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"PO-Revision-Date: 2017-09-24 22:54+0200\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "Language: fr\n"
@@ -19,7 +19,7 @@ msgstr ""
 
 #: ../Doc/library/development.rst:5
 msgid "Development Tools"
-msgstr ""
+msgstr "Outils de développement"
 
 #: ../Doc/library/development.rst:7
 msgid ""
@@ -30,7 +30,14 @@ msgid ""
 "and verify that the expected output is produced.  :program:`2to3` can "
 "translate Python 2.x source code into valid Python 3.x code."
 msgstr ""
+"Les modules décrits dans ce chapitre vous aident à écrire des logiciels.  "
+"Par exemple, le module :mod:`pydoc` prend un module et génère de la "
+"documentation basée sur son contenu.  Les modules :mod:`doctest` et :mod:"
+"`unittest` contiennent des frameworks pour écrire des tests unitaires qui "
+"permettent de valider automatiquement le code en vérifiant que chaque "
+"résultat attendu est produit. Le programme :program:`2to3` peut traduire du "
+"code Python 2.x en Python 3.x."
 
 #: ../Doc/library/development.rst:14
 msgid "The list of modules described in this chapter is:"
-msgstr ""
+msgstr "Voici la liste des modules documentés par ce chapitre:"
diff --git a/library/netdata.po b/library/netdata.po
index d12ab9f4..4a4b0f14 100644
--- a/library/netdata.po
+++ b/library/netdata.po
@@ -9,7 +9,7 @@ msgstr ""
 "Project-Id-Version: Python 3.6\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2017-04-02 22:11+0200\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"PO-Revision-Date: 2017-09-24 22:55+0200\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "Language: fr\n"
@@ -19,10 +19,12 @@ msgstr ""
 
 #: ../Doc/library/netdata.rst:6
 msgid "Internet Data Handling"
-msgstr ""
+msgstr "Traitement des données provenant d'Internet"
 
 #: ../Doc/library/netdata.rst:8
 msgid ""
 "This chapter describes modules which support handling data formats commonly "
 "used on the Internet."
 msgstr ""
+"Ce chapitre décrit les modules qui prennent en charge le traitement des "
+"formats de données couramment utilisés sur Internet."
diff --git a/library/unix.po b/library/unix.po
index c1e447d2..93808afe 100644
--- a/library/unix.po
+++ b/library/unix.po
@@ -9,7 +9,7 @@ msgstr ""
 "Project-Id-Version: Python 3.6\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2017-04-02 22:11+0200\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"PO-Revision-Date: 2017-09-24 22:56+0200\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "Language: fr\n"
@@ -19,7 +19,7 @@ msgstr ""
 
 #: ../Doc/library/unix.rst:5
 msgid "Unix Specific Services"
-msgstr ""
+msgstr "Services spécifiques à Unix"
 
 #: ../Doc/library/unix.rst:7
 msgid ""
@@ -27,3 +27,6 @@ msgid ""
 "are unique to the Unix operating system, or in some cases to some or many "
 "variants of it.  Here's an overview:"
 msgstr ""
+"Les modules décrits dans ce chapitre fournissent des interfaces aux "
+"fonctionnalités propres au système d'exploitation Unix ou, dans certains "
+"cas, à certaines de ses variantes, en voici un aperçu :"