diff --git a/patoolib/__init__.py b/patoolib/__init__.py
index 39f8a8b..89d8ebb 100644
--- a/patoolib/__init__.py
+++ b/patoolib/__init__.py
@@ -102,7 +102,7 @@ ArchivePrograms = {
         None: ('7z', '7za'),
         'extract': ('pbzip2', 'lbzip2', 'bzip2', 'pybz2'),
         'test': ('pbzip2', 'lbzip2', 'bzip2'),
-        'create': ('pbzip2', 'lbzip2', 'bzip2'),
+        'create': ('pbzip2', 'lbzip2', 'bzip2', 'pybz2'),
         'list': ('echo',),
     },
     'tar': {
@@ -118,6 +118,7 @@ ArchivePrograms = {
     'gzip': {
         None: ('pigz', 'gzip', '7z', '7za'),
         'extract': ('pygzip',),
+        'create': ('pygzip',),
     },
     'lzh': {
         None: ('lha',),
diff --git a/patoolib/programs/pybz2.py b/patoolib/programs/pybz2.py
index fa0c88d..a4903df 100644
--- a/patoolib/programs/pybz2.py
+++ b/patoolib/programs/pybz2.py
@@ -24,7 +24,7 @@ except ImportError:
 READ_SIZE_BYTES = 1024*1024
 
 def extract_bzip2 (archive, encoding, cmd, **kwargs):
-    """Extract a BZIP2 archive with the bz2 Python module functionality."""
+    """Extract a BZIP2 archive with the bz2 Python module."""
     verbose = kwargs['verbose']
     if verbose:
         util.log_info('extracting %s...' % archive)
@@ -44,3 +44,28 @@ def extract_bzip2 (archive, encoding, cmd, **kwargs):
     if verbose:
         util.log_info('... extracted to %s' % targetname)
     return None
+
+
+def create_bzip2 (archive, encoding, cmd, *args, **kwargs):
+    """Create a BZIP2 archive with the bz2 Python module."""
+    verbose = kwargs['verbose']
+    if verbose:
+        util.log_info('creating %s...' % archive)
+    if len(args) > 1:
+        util.log_error('multi-file compression not supported in Python bz2')
+    bz2file = bz2.BZ2File(archive, 'wb')
+    try:
+        filename = args[0]
+        srcfile = open(filename)
+        try:
+            data = srcfile.read(READ_SIZE_BYTES)
+            while data:
+                bz2file.write(data)
+                data = srcfile.read(READ_SIZE_BYTES)
+            if verbose:
+                util.log_info('... added %s' % filename)
+        finally:
+            srcfile.close()
+    finally:
+        bz2file.close()
+    return None
diff --git a/patoolib/programs/pygzip.py b/patoolib/programs/pygzip.py
index c930e7b..946ac2e 100644
--- a/patoolib/programs/pygzip.py
+++ b/patoolib/programs/pygzip.py
@@ -22,7 +22,7 @@ from patoolib import util
 READ_SIZE_BYTES = 1024*1024
 
 def extract_gzip (archive, encoding, cmd, **kwargs):
-    """Extract a GZIP archive with the gzip Python module functionality."""
+    """Extract a GZIP archive with the gzip Python module."""
     verbose = kwargs['verbose']
     if verbose:
         util.log_info('extracting %s...' % archive)
@@ -42,3 +42,28 @@ def extract_gzip (archive, encoding, cmd, **kwargs):
     if verbose:
         util.log_info('... extracted to %s' % targetname)
     return None
+
+
+def create_gzip (archive, encoding, cmd, *args, **kwargs):
+    """Create a GZIP archive with the gzip Python module."""
+    verbose = kwargs['verbose']
+    if verbose:
+        util.log_info('creating %s...' % archive)
+    if len(args) > 1:
+        util.log_error('multi-file compression not supported in Python gzip')
+    gzipfile = gzip.GzipFile(archive, 'wb')
+    try:
+        filename = args[0]
+        srcfile = open(filename)
+        try:
+            data = srcfile.read(READ_SIZE_BYTES)
+            while data:
+                gzipfile.write(data)
+                data = srcfile.read(READ_SIZE_BYTES)
+            if verbose:
+                util.log_info('... added %s' % filename)
+        finally:
+            srcfile.close()
+    finally:
+        gzipfile.close()
+    return None