diff --git a/patoolib/programs/py_bz2.py b/patoolib/programs/py_bz2.py
index 6e1ccd9..606b75c 100644
--- a/patoolib/programs/py_bz2.py
+++ b/patoolib/programs/py_bz2.py
@@ -27,10 +27,9 @@ def extract_bzip2 (archive, compression, cmd, **kwargs):
     """Extract a BZIP2 archive with the bz2 Python module."""
     verbose = kwargs['verbose']
     outdir = kwargs['outdir']
-    # XXX honor outdir
     if verbose:
         util.log_info('extracting %s...' % archive)
-    targetname = util.get_single_outfile(kwargs['outdir'], archive)
+    targetname = util.get_single_outfile(outdir, archive)
     bz2file = bz2.BZ2File(archive)
     try:
         targetfile = open(targetname, 'wb')
diff --git a/patoolib/programs/py_gzip.py b/patoolib/programs/py_gzip.py
index 1e2bdee..6b60e1b 100644
--- a/patoolib/programs/py_gzip.py
+++ b/patoolib/programs/py_gzip.py
@@ -25,10 +25,9 @@ def extract_gzip (archive, compression, cmd, **kwargs):
     """Extract a GZIP archive with the gzip Python module."""
     verbose = kwargs['verbose']
     outdir = kwargs['outdir']
-    # XXX honor outdir
     if verbose:
         util.log_info('extracting %s...' % archive)
-    targetname = util.get_single_outfile(kwargs['outdir'], archive)
+    targetname = util.get_single_outfile(outdir, archive)
     gzipfile = gzip.GzipFile(archive)
     try:
         targetfile = open(targetname, 'wb')
diff --git a/patoolib/programs/py_tarfile.py b/patoolib/programs/py_tarfile.py
index dea8f12..db6d9e1 100644
--- a/patoolib/programs/py_tarfile.py
+++ b/patoolib/programs/py_tarfile.py
@@ -38,12 +38,11 @@ def extract_tar (archive, compression, cmd, **kwargs):
     """Extract a TAR archive with the tarfile Python module."""
     verbose = kwargs['verbose']
     outdir = kwargs['outdir']
-    # XXX honor outdir
     if verbose:
         util.log_info('extracting %s...' % archive)
     tfile = tarfile.open(archive)
     try:
-        tfile.extractall()
+        tfile.extractall(path=outdir)
     finally:
         tfile.close()
     if verbose:
diff --git a/patoolib/programs/py_zipfile.py b/patoolib/programs/py_zipfile.py
index f658a5c..6a434fb 100644
--- a/patoolib/programs/py_zipfile.py
+++ b/patoolib/programs/py_zipfile.py
@@ -39,12 +39,11 @@ def extract_zip (archive, compression, cmd, **kwargs):
     """Extract a ZIP archive with the zipfile Python module."""
     verbose = kwargs['verbose']
     outdir = kwargs['outdir']
-    # XXX honor outdir
     if verbose:
         util.log_info('extracting %s...' % archive)
     zfile = zipfile.ZipFile(archive)
     try:
-        zfile.extractall()
+        zfile.extractall(outdir)
     finally:
         zfile.close()
     if verbose: