diff --git a/src/testdir/test_python3.vim b/src/testdir/test_python3.vim
index ed05309..b216877 100644
--- a/src/testdir/test_python3.vim
+++ b/src/testdir/test_python3.vim
@@ -25,6 +25,7 @@
     py33_type_error_pattern = re.compile('^__call__\(\) takes (\d+) positional argument but (\d+) were given$')
     py37_exception_repr = re.compile(r'([^\(\),])(\)+)$')
     py39_type_error_pattern = re.compile('\w+\.([^(]+\(\) takes)')
+    py310_type_error_pattern = re.compile('takes (\d+) positional argument but (\d+) were given')
 
     def emsg(ei):
       return ei[0].__name__ + ':' + repr(ei[1].args)
@@ -60,6 +61,7 @@
                             msg = msg.replace(newmsg2, oldmsg2)
                         # Python 3.9 reports errors like "vim.command() takes ..." instead of "command() takes ..."
                         msg = py39_type_error_pattern.sub(r'\1', msg)
+                        msg = py310_type_error_pattern.sub(r'takes exactly \1 positional argument (\2 given)', msg)
                 elif sys.version_info >= (3, 5) and e.__class__ is ValueError and str(e) == 'embedded null byte':
                     msg = repr((TypeError, TypeError('expected bytes with no null')))
                 else:
@@ -2639,6 +2641,7 @@
   py3 cb = vim.current.buffer
 
   py3 << trim EOF
+    import os
     d = vim.Dictionary()
     ned = vim.Dictionary(foo='bar', baz='abcD')
     dl = vim.Dictionary(a=1)
diff --git a/src/version.c b/src/version.c
index 3227bb6..5d3d2a3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3602,
+/**/
     3601,
 /**/
     3600,