diff --git a/ChangeLog b/ChangeLog
index 19c64f19..9db5468e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -22711,3 +22711,5 @@
 2021-12-08 Fred Gleason <fredg@paravelsystems.com>
 	* Modified the 'rivwebpyapi.Import()' method to return a dictionary
 	containing the cart and cut numbers of the import destination.
+2021-12-08 Fred Gleason <fredg@paravelsystems.com>
+	* Added a 'LockLog()' method to the 'rivwebpyapi' API.
diff --git a/apis/rivwebpyapi/api/rivwebpyapi.py b/apis/rivwebpyapi/api/rivwebpyapi.py
index 054f4cf5..bf038db3 100755
--- a/apis/rivwebpyapi/api/rivwebpyapi.py
+++ b/apis/rivwebpyapi/api/rivwebpyapi.py
@@ -1640,6 +1640,77 @@ class rivwebpyapi(object):
 
         return handler.output()[0]
 
+    def LockLog(self,log_name,operation,guid):
+        """
+          Manage the lock for the specified log (dictionary).
+
+          Takes the following argument:
+
+          log_name - The name of the log for which to create the write lock
+                     (string)
+
+          operation - The operation to perform. Valid values are 'CREATE',
+                      'UPDATE' and 'CLEAR'.
+        """
+
+        if(not log_name):
+            raise ValueError('invalid log name')
+        if((operation!='CREATE')and(operation!='UPDATE')and
+           (operation!='CLEAR')):
+            raise ValueError('invalid lock operation')
+
+        #
+        # Build the WebAPI arguments
+        #
+        postdata={
+            'COMMAND': '34',
+            'LOGIN_NAME': self.__connection_username,
+            'PASSWORD': self.__connection_password,
+            'LOG_NAME': str(log_name),
+            'OPERATION': str(operation),
+            'LOCK_GUID': str(guid)
+        }
+
+        #
+        # Fetch the XML
+        #
+        r=requests.post(self.__connection_url,data=postdata)
+        if(r.status_code!=requests.codes.ok):
+            self.__throwError(response=r)
+
+        #
+        # Generate the output dictionary
+        #
+        fields={
+            'result': 'boolean',
+            'logName': 'string',
+            'lockGuid': 'string',
+            'address': 'string',
+            'lockTimeout': 'integer'
+        }
+        handler=RivWebPyApi_ListHandler(base_tag='logLock',fields=fields)
+        xml.sax.parseString(r.text,handler)
+
+        return handler.output()[0]
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
     def RemoveCart(self,cart_number):
         """
           Remove a cart from the cart library.
diff --git a/apis/rivwebpyapi/tests/Makefile.am b/apis/rivwebpyapi/tests/Makefile.am
index 60c53e3b..9d5f4f20 100644
--- a/apis/rivwebpyapi/tests/Makefile.am
+++ b/apis/rivwebpyapi/tests/Makefile.am
@@ -43,6 +43,7 @@ EXTRA_DIST = add_cart.py\
              list_scheduler_codes.py\
              list_services.py\
              list_system_settings.py\
+             lock_log.py\
              remove_cart.py\
              remove_cut.py\
              unassign_sched_code.py
diff --git a/apis/rivwebpyapi/tests/lock_log.py b/apis/rivwebpyapi/tests/lock_log.py
new file mode 100755
index 00000000..4085fbf7
--- /dev/null
+++ b/apis/rivwebpyapi/tests/lock_log.py
@@ -0,0 +1,101 @@
+#!%PYTHON_BANGPATH%
+
+# lock_log.py
+#
+# RivWebPyApi test script for Rivendell
+#
+#  Test the LockLog Web API call
+#
+#   (C) Copyright 2021 Fred Gleason <fredg@paravelsystems.com>
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License version 2 as
+#   published by the Free Software Foundation.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public
+#   License along with this program; if not, write to the Free Software
+#   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+
+import getpass
+import rivwebpyapi
+import sys
+def eprint(*args,**kwargs):
+    print(*args,file=sys.stderr,**kwargs)
+
+url='';
+username=''
+password=''
+log_name=''
+operation=''
+guid=''
+
+#
+# Get login parameters
+#
+usage='import --url=<rd-url> --username=<rd-username> --log-name=<str> --operation=CREATE|UPDATE|CLEAR --guid=<str>'
+for arg in sys.argv:
+    f0=arg.split('=')
+    if(len(f0)==2):
+        if(f0[0]=='--url'):
+            url=f0[1]
+        if(f0[0]=='--username'):
+            username=f0[1]
+        if(f0[0]=='--password'):
+            password=f0[1]
+        if(f0[0]=='--log-name'):
+            log_name=f0[1]
+        if(f0[0]=='--operation'):
+            operation=f0[1]
+        if(f0[0]=='--guid'):
+            guid=f0[1]
+
+if(not password):
+    password=getpass.getpass()
+if((not url)or(not username)):
+    eprint(usage)
+    sys.exit(1)
+if(not log_name):
+    eprint('you must supply "--log-name"')
+    sys.exit(1)
+if(not operation):
+    eprint('you must supply "--operation"')
+    sys.exit(1)
+if((operation!='CREATE')and(operation!='UPDATE')and(operation!='CLEAR')):
+    eprint('invalid "--operation" specified');
+    sys.exit(1)
+if((operation!='CREATE')and(not guid)):
+    eprint('you must supply "--guid"')
+    sys.exit(1)
+
+#
+# Execute
+#
+webapi=rivwebpyapi.rivwebpyapi(url=url,username=username,password=password)
+try:
+    result=webapi.LockLog(log_name=log_name,operation=operation,guid=guid)
+except rivwebpyapi.RivWebPyError as err:
+    eprint('*** ERROR ***')
+    eprint('Response Code: '+str(err.responseCode))
+    eprint('ErrorString: '+str(err.errorString))
+    eprint('*************')
+    eprint('')
+    sys.exit(1)
+
+#
+# Display the result
+#
+print('')
+print('RESULT:')
+print('result: '+str(result['result']))
+print('logName: '+str(result['logName']))
+print('lockGuid: '+str(result['lockGuid']))
+print('address: '+str(result['address']))
+print('lockTimeout: '+str(result['address']))
+print('')
+