diff --git a/docs/source/command_line.rst b/docs/source/command_line.rst
index 697e0fb69eed..611cfccd4849 100644
--- a/docs/source/command_line.rst
+++ b/docs/source/command_line.rst
@@ -910,10 +910,10 @@ in error messages.
 
     See :ref:`error-codes` for more information.
 
-.. option:: --pretty
+.. option:: --no-pretty
 
-    Use visually nicer output in error messages: use soft word wrap,
-    show source code snippets, and show error location markers.
+    Disable pretty error messages and use the old, plain output format.
+    Pretty-printing is enable by default.
 
 .. option:: --no-color-output
 
diff --git a/docs/source/config_file.rst b/docs/source/config_file.rst
index b4f134f26cb1..57263fe59ea0 100644
--- a/docs/source/config_file.rst
+++ b/docs/source/config_file.rst
@@ -896,10 +896,11 @@ These options may only be set in the global section (``[mypy]``).
 .. confval:: pretty
 
     :type: boolean
-    :default: False
+    :default: True
 
     Use visually nicer output in error messages: use soft word wrap,
     show source code snippets, and show error location markers.
+    Pretty printing is enabled by default, but can be disabled.
 
 .. confval:: color_output
 
diff --git a/mypy/main.py b/mypy/main.py
index a407a88d3ac1..9f9d367dea35 100644
--- a/mypy/main.py
+++ b/mypy/main.py
@@ -991,14 +991,6 @@ def add_invertible_flag(
         help="Show links to error code documentation",
         group=error_group,
     )
-    add_invertible_flag(
-        "--pretty",
-        default=False,
-        help="Use visually nicer output in error messages:"
-        " Use soft word wrap, show source code snippets,"
-        " and show error location markers",
-        group=error_group,
-    )
     add_invertible_flag(
         "--no-color-output",
         dest="color_output",
@@ -1006,6 +998,13 @@ def add_invertible_flag(
         help="Do not colorize error messages",
         group=error_group,
     )
+    add_invertible_flag(
+        "--no-pretty",
+        default=True,
+        dest="pretty",
+        help="Disable pretty error message",
+        group=error_group,
+    )
     add_invertible_flag(
         "--no-error-summary",
         dest="error_summary",
diff --git a/mypy/options.py b/mypy/options.py
index 4a89ef529c07..35390183199c 100644
--- a/mypy/options.py
+++ b/mypy/options.py
@@ -357,7 +357,7 @@ def __init__(self) -> None:
         self.hide_error_codes = False
         self.show_error_code_links = False
         # Use soft word wrap and show trimmed source snippets with error location markers.
-        self.pretty = False
+        self.pretty = True
         self.dump_graph = False
         self.dump_deps = False
         self.logical_deps = False
diff --git a/mypy/test/helpers.py b/mypy/test/helpers.py
index ae432ff6981b..045445cb7ec4 100644
--- a/mypy/test/helpers.py
+++ b/mypy/test/helpers.py
@@ -342,6 +342,8 @@ def parse_options(
 
     if flags:
         flag_list = flags.group(1).split()
+        if "--pretty" not in flag_list:
+            flag_list.append("--no-pretty")
         flag_list.append("--no-site-packages")  # the tests shouldn't need an installed Python
         targets, options = process_options(flag_list, require_targets=False)
         if targets:
@@ -350,11 +352,12 @@ def parse_options(
         if "--show-error-codes" not in flag_list:
             options.hide_error_codes = True
     else:
-        flag_list = []
         options = Options()
+        options.pretty = False
         options.error_summary = False
         options.hide_error_codes = True
         options.force_union_syntax = True
+        flag_list = []
 
     # Allow custom python version to override testfile_pyversion.
     if all(flag.split("=")[0] != "--python-version" for flag in flag_list):
diff --git a/mypy/test/testcmdline.py b/mypy/test/testcmdline.py
index 11d229042978..0af3ced4c739 100644
--- a/mypy/test/testcmdline.py
+++ b/mypy/test/testcmdline.py
@@ -131,8 +131,13 @@ def parse_args(line: str) -> list[str]:
     """
     m = re.match("# cmd: mypy (.*)$", line)
     if not m:
-        return []  # No args; mypy will spit out an error.
-    return m.group(1).split()
+        return ["--no-pretty"]  # No args; mypy will spit out an error.
+    args = m.group(1).split()
+
+    if "--pretty" not in args:
+        args.append("--no-pretty")
+
+    return args
 
 
 def parse_cwd(line: str) -> str | None:
diff --git a/mypy/test/testdaemon.py b/mypy/test/testdaemon.py
index 7115e682e60d..78968b6e8a74 100644
--- a/mypy/test/testdaemon.py
+++ b/mypy/test/testdaemon.py
@@ -79,6 +79,18 @@ def parse_script(input: list[str]) -> list[list[str]]:
 def run_cmd(input: str) -> tuple[int, str]:
     if input[1:].startswith("mypy run --") and "--show-error-codes" not in input:
         input += " --hide-error-codes"
+    is_pretty_test = "# NO-MODIFY" in input
+    modified_input = input.replace("# NO-MODIFY", "").strip()
+    cond1 = "--pretty" not in modified_input
+    cond2 = modified_input.startswith(("dmypy run", "dmypy check"))
+    cond3 = not is_pretty_test
+    if cond1 and cond2 and cond3:
+        parts = modified_input.split(" ", 2)
+        command, subcommand = parts[0], parts[1]
+        args = parts[2] if len(parts) > 2 else ""
+        input = f"{command} {subcommand} {args} --no-pretty".strip()
+    else:
+        input = modified_input
     if input.startswith("dmypy "):
         input = sys.executable + " -m mypy." + input
     if input.startswith("mypy "):
diff --git a/mypy/test/testerrorstream.py b/mypy/test/testerrorstream.py
index a54a3495ddb2..3edfe308789f 100644
--- a/mypy/test/testerrorstream.py
+++ b/mypy/test/testerrorstream.py
@@ -25,6 +25,7 @@ def test_error_stream(testcase: DataDrivenTestCase) -> None:
     The argument contains the description of the test case.
     """
     options = Options()
+    options.pretty = False
     options.show_traceback = True
     options.hide_error_codes = True
 
diff --git a/mypy/test/testpep561.py b/mypy/test/testpep561.py
index 0afb69bc0c99..0ce2a09d364e 100644
--- a/mypy/test/testpep561.py
+++ b/mypy/test/testpep561.py
@@ -174,5 +174,8 @@ def parse_pkgs(comment: str) -> tuple[list[str], list[str]]:
 def parse_mypy_args(line: str) -> list[str]:
     m = re.match("# flags: (.*)$", line)
     if not m:
-        return []  # No args; mypy will spit out an error.
-    return m.group(1).split()
+        return ["--no-pretty"]  # No args; mypy will spit out an error.
+    args = m.group(1).split()
+    args.append("--no-pretty")
+
+    return args
diff --git a/mypy/test/testpythoneval.py b/mypy/test/testpythoneval.py
index 6d22aca07da7..d01cf5711470 100644
--- a/mypy/test/testpythoneval.py
+++ b/mypy/test/testpythoneval.py
@@ -54,6 +54,9 @@ def test_python_evaluation(testcase: DataDrivenTestCase, cache_dir: str) -> None
         "--allow-empty-bodies",
         "--test-env",  # Speeds up some checks
     ]
+
+    mypy_cmdline.append("--no-pretty")
+
     interpreter = python3_path
     mypy_cmdline.append(f"--python-version={'.'.join(map(str, PYTHON3_VERSION))}")
 
@@ -69,6 +72,9 @@ def test_python_evaluation(testcase: DataDrivenTestCase, cache_dir: str) -> None
                     sys.version_info.minor,
                 ):
                     return
+        if "--pretty" in additional_flags:
+            mypy_cmdline.remove("--no-pretty")
+
         mypy_cmdline.extend(additional_flags)
 
     # Write the program to a file.
diff --git a/mypy/test/teststubtest.py b/mypy/test/teststubtest.py
index 7925f2a6bd3e..830a71e98d76 100644
--- a/mypy/test/teststubtest.py
+++ b/mypy/test/teststubtest.py
@@ -2581,13 +2581,17 @@ def test_mypy_build(self) -> None:
         output = run_stubtest(stub="+", runtime="", options=[])
         assert output == (
             "error: not checking stubs due to failed mypy compile:\n{}.pyi:1: "
-            "error: Invalid syntax  [syntax]\n".format(TEST_MODULE_NAME)
+            "error: Invalid syntax  [syntax]\n"
+            "    +\n"
+            "     ^\n".format(TEST_MODULE_NAME)
         )
 
         output = run_stubtest(stub="def f(): ...\ndef f(): ...", runtime="", options=[])
         assert output == (
             "error: not checking stubs due to mypy build errors:\n{}.pyi:2: "
-            'error: Name "f" already defined on line 1  [no-redef]\n'.format(TEST_MODULE_NAME)
+            'error: Name "f" already defined on line 1  [no-redef]\n'
+            "    def f(): ...\n"
+            "    ^~~~~~~~~~~~\n".format(TEST_MODULE_NAME)
         )
 
     def test_missing_stubs(self) -> None:
@@ -2665,6 +2669,8 @@ def test_config_file_error_codes(self) -> None:
         assert output == (
             "error: not checking stubs due to mypy build errors:\n"
             'test_module.pyi:1: error: Name "SOME_GLOBAL_CONST" is not defined  [name-defined]\n'
+            "    temp = SOME_GLOBAL_CONST\n"
+            "           ^~~~~~~~~~~~~~~~~\n"
         )
 
         config_file = "[mypy]\ndisable_error_code = name-defined\n"
diff --git a/test-data/unit/daemon.test b/test-data/unit/daemon.test
index 295eb4000d81..283bb3400fe3 100644
--- a/test-data/unit/daemon.test
+++ b/test-data/unit/daemon.test
@@ -8,13 +8,13 @@ $ dmypy stop
 Daemon stopped
 
 [case testDaemonBasic]
-$ dmypy start -- --follow-imports=error
+$ dmypy start -- --follow-imports=error # NO-MODIFY
 Daemon started
-$ dmypy check -- foo.py
+$ dmypy check -- foo.py # NO-MODIFY
 Success: no issues found in 1 source file
-$ dmypy recheck
+$ dmypy recheck # NO-MODIFY
 Success: no issues found in 1 source file
-$ dmypy stop
+$ dmypy stop # NO-MODIFY
 Daemon stopped
 [file foo.py]
 def f(): pass
@@ -229,17 +229,17 @@ Daemon has died
 == Return code: 2
 
 [case testDaemonRecheck]
-$ dmypy start -- --follow-imports=error --no-error-summary
+$ dmypy start -- --follow-imports=error --no-error-summary --no-pretty
 Daemon started
-$ dmypy check foo.py bar.py
-$ dmypy recheck
-$ dmypy recheck --update foo.py --remove bar.py sir_not_appearing_in_this_film.py
+$ dmypy check foo.py bar.py # NO-MODIFY
+$ dmypy recheck # NO-MODIFY
+$ dmypy recheck --update foo.py --remove bar.py sir_not_appearing_in_this_film.py # NO-MODIFY
 foo.py:1: error: Import of "bar" ignored  [misc]
 foo.py:1: note: (Using --follow-imports=error, module not passed on command line)
 == Return code: 1
-$ dmypy recheck --update bar.py
-$ dmypy recheck --update sir_not_appearing_in_this_film.py
-$ dmypy recheck --update --remove
+$ dmypy recheck --update bar.py # NO-MODIFY
+$ dmypy recheck --update sir_not_appearing_in_this_film.py # NO-MODIFY
+$ dmypy recheck --update --remove # NO-MODIFY
 $ dmypy stop
 Daemon stopped
 [file foo.py]
@@ -264,26 +264,26 @@ $ dmypy stop
 Daemon stopped
 
 [case testDaemonRunTwoFilesFullTypeshed]
-$ dmypy run x.py
+$ dmypy run x.py  # NO-MODIFY
 Daemon started
 Success: no issues found in 1 source file
-$ dmypy run y.py
+$ dmypy run y.py  # NO-MODIFY
 Success: no issues found in 1 source file
-$ dmypy run x.py
+$ dmypy run x.py  # NO-MODIFY
 Success: no issues found in 1 source file
 [file x.py]
 [file y.py]
 
 [case testDaemonCheckTwoFilesFullTypeshed]
-$ dmypy start
+$ dmypy start -- --no-pretty
 Daemon started
-$ dmypy check foo.py
+$ dmypy check foo.py # NO-MODIFY
 foo.py:3: error: Incompatible types in assignment (expression has type "str", variable has type "int")  [assignment]
 Found 1 error in 1 file (checked 1 source file)
 == Return code: 1
-$ dmypy check bar.py
+$ dmypy check bar.py # NO-MODIFY
 Success: no issues found in 1 source file
-$ dmypy check foo.py
+$ dmypy check foo.py # NO-MODIFY
 foo.py:3: error: Incompatible types in assignment (expression has type "str", variable has type "int")  [assignment]
 Found 1 error in 1 file (checked 1 source file)
 == Return code: 1
@@ -344,34 +344,34 @@ $ {python} -c "import sys; sys.stdout.write(open('log').read())"
 $ {python} -c "x = open('.mypy_cache/3.11/bar.meta.json').read(); y = open('asdf.json').read(); assert x == y"
 
 [case testDaemonSuggest]
-$ dmypy start --log-file log.txt -- --follow-imports=error --no-error-summary
+$ dmypy start --log-file log.txt -- --follow-imports=error --no-error-summary --no-pretty
 Daemon started
-$ dmypy suggest foo:foo
+$ dmypy suggest foo:foo # NO-MODIFY
 Command 'suggest' is only valid after a 'check' command (that produces no parse errors)
 == Return code: 2
-$ dmypy check foo.py bar.py
-$ dmypy suggest foo.bar
+$ dmypy check foo.py bar.py # NO-MODIFY
+$ dmypy suggest foo.bar # NO-MODIFY
 Unknown function foo.bar
 == Return code: 2
-$ dmypy suggest foo.var
+$ dmypy suggest foo.var # NO-MODIFY
 Object foo.var is not a function
 == Return code: 2
-$ dmypy suggest foo.Foo.var
+$ dmypy suggest foo.Foo.var # NO-MODIFY
 Unknown class foo.Foo
 == Return code: 2
-$ dmypy suggest foo.Bar.baz
+$ dmypy suggest foo.Bar.baz # NO-MODIFY
 Unknown method foo.Bar.baz
 == Return code: 2
-$ dmypy suggest foo.foo.baz
+$ dmypy suggest foo.foo.baz # NO-MODIFY
 Object foo.foo is not a class
 == Return code: 2
-$ dmypy suggest --callsites foo.foo
+$ dmypy suggest --callsites foo.foo # NO-MODIFY
 bar.py:3: (str)
 bar.py:4: (arg=str)
-$ dmypy suggest foo.foo
+$ dmypy suggest foo.foo # NO-MODIFY
 (str) -> int
-$ {python} -c "import shutil; shutil.copy('foo2.py', 'foo.py')"
-$ dmypy check foo.py bar.py
+$ {python} -c "import shutil; shutil.copy('foo2.py', 'foo.py')" # NO-MODIFY
+$ dmypy check foo.py bar.py # NO-MODIFY
 bar.py:3: error: Incompatible types in assignment (expression has type "int", variable has type "str")  [assignment]
 == Return code: 1
 [file foo.py]
@@ -393,26 +393,26 @@ def bar() -> None:
     foo(arg='xyz')
 
 [case testDaemonInspectCheck]
-$ dmypy start
+$ dmypy start # NO-MODIFY
 Daemon started
-$ dmypy check foo.py
+$ dmypy check foo.py # NO-MODIFY
 Success: no issues found in 1 source file
-$ dmypy check foo.py --export-types
+$ dmypy check foo.py --export-types # NO-MODIFY
 Success: no issues found in 1 source file
-$ dmypy inspect foo.py:1:1
+$ dmypy inspect foo.py:1:1 # NO-MODIFY
 "int"
 [file foo.py]
 x = 1
 
 [case testDaemonInspectRun]
-$ dmypy run test1.py
+$ dmypy run test1.py # NO-MODIFY
 Daemon started
 Success: no issues found in 1 source file
-$ dmypy run test2.py
+$ dmypy run test2.py # NO-MODIFY
 Success: no issues found in 1 source file
-$ dmypy run test1.py --export-types
+$ dmypy run test1.py --export-types # NO-MODIFY
 Success: no issues found in 1 source file
-$ dmypy inspect test1.py:1:1
+$ dmypy inspect test1.py:1:1 # NO-MODIFY
 "int"
 [file test1.py]
 a: int
@@ -420,49 +420,49 @@ a: int
 a: str
 
 [case testDaemonGetType]
-$ dmypy start --log-file log.txt -- --follow-imports=error --no-error-summary --python-version 3.9
+$ dmypy start --log-file log.txt -- --follow-imports=error --no-error-summary --python-version 3.9 --no-pretty
 Daemon started
-$ dmypy inspect foo:1:2:3:4
+$ dmypy inspect foo:1:2:3:4 # NO-MODIFY
 Command "inspect" is only valid after a "check" command (that produces no parse errors)
 == Return code: 2
-$ dmypy check foo.py --export-types
+$ dmypy check foo.py --export-types # NO-MODIFY
 foo.py:3: error: Incompatible types in assignment (expression has type "str", variable has type "int")  [assignment]
 == Return code: 1
-$ dmypy inspect foo:1
+$ dmypy inspect foo:1 # NO-MODIFY
 Format should be file:line:column[:end_line:end_column]
 == Return code: 2
-$ dmypy inspect foo:1:2:3
+$ dmypy inspect foo:1:2:3 # NO-MODIFY
 Source file is not a Python file
 == Return code: 2
-$ dmypy inspect foo.py:1:2:a:b
+$ dmypy inspect foo.py:1:2:a:b # NO-MODIFY
 invalid literal for int() with base 10: 'a'
 == Return code: 2
-$ dmypy inspect foo.pyc:1:1:2:2
+$ dmypy inspect foo.pyc:1:1:2:2 # NO-MODIFY
 Source file is not a Python file
 == Return code: 2
-$ dmypy inspect bar/baz.py:1:1:2:2
+$ dmypy inspect bar/baz.py:1:1:2:2 # NO-MODIFY
 Unknown module: bar/baz.py
 == Return code: 1
-$ dmypy inspect foo.py:3:1:1:1
+$ dmypy inspect foo.py:3:1:1:1 # NO-MODIFY
 "end_line" must not be before "line"
 == Return code: 2
-$ dmypy inspect foo.py:3:3:3:1
+$ dmypy inspect foo.py:3:3:3:1 # NO-MODIFY
 "end_column" must be after "column"
 == Return code: 2
-$ dmypy inspect foo.py:3:10:3:17
+$ dmypy inspect foo.py:3:10:3:17 # NO-MODIFY
 "str"
-$ dmypy inspect foo.py:3:10:3:17 -vv
+$ dmypy inspect foo.py:3:10:3:17 -vv # NO-MODIFY
 "builtins.str"
-$ dmypy inspect foo.py:9:9:9:11
+$ dmypy inspect foo.py:9:9:9:11 # NO-MODIFY
 "int"
-$ dmypy inspect foo.py:11:1:11:3
+$ dmypy inspect foo.py:11:1:11:3 # NO-MODIFY
 "Callable[[Optional[int]], None]"
-$ dmypy inspect foo.py:11:1:13:1
+$ dmypy inspect foo.py:11:1:13:1 # NO-MODIFY
 "None"
-$ dmypy inspect foo.py:1:2:3:4
+$ dmypy inspect foo.py:1:2:3:4 # NO-MODIFY
 Can't find expression at span 1:2:3:4
 == Return code: 1
-$ dmypy inspect foo.py:17:5:17:5
+$ dmypy inspect foo.py:17:5:17:5 # NO-MODIFY
 No known type available for "NameExpr" (maybe unreachable or try --force-reload)
 == Return code: 1
 
@@ -486,43 +486,43 @@ def unreachable(x: int) -> None:
     x  # line 17
 
 [case testDaemonGetTypeInexact]
-$ dmypy start --log-file log.txt -- --follow-imports=error --no-error-summary
+$ dmypy start --log-file log.txt -- --follow-imports=error --no-error-summary --no-pretty
 Daemon started
-$ dmypy check foo.py --export-types
-$ dmypy inspect foo.py:1:a
+$ dmypy check foo.py --export-types # NO-MODIFY
+$ dmypy inspect foo.py:1:a # NO-MODIFY
 invalid literal for int() with base 10: 'a'
 == Return code: 2
-$ dmypy inspect foo.pyc:1:2
+$ dmypy inspect foo.pyc:1:2 # NO-MODIFY
 Source file is not a Python file
 == Return code: 2
-$ dmypy inspect bar/baz.py:1:2
+$ dmypy inspect bar/baz.py:1:2 # NO-MODIFY
 Unknown module: bar/baz.py
 == Return code: 1
-$ dmypy inspect foo.py:7:5 --include-span
+$ dmypy inspect foo.py:7:5 --include-span # NO-MODIFY
 7:5:7:5 -> "int"
 7:5:7:11 -> "int"
 7:1:7:12 -> "None"
-$ dmypy inspect foo.py:7:5 --include-kind
+$ dmypy inspect foo.py:7:5 --include-kind # NO-MODIFY
 NameExpr -> "int"
 OpExpr -> "int"
 CallExpr -> "None"
-$ dmypy inspect foo.py:7:5 --include-span --include-kind
+$ dmypy inspect foo.py:7:5 --include-span --include-kind # NO-MODIFY
 NameExpr:7:5:7:5 -> "int"
 OpExpr:7:5:7:11 -> "int"
 CallExpr:7:1:7:12 -> "None"
-$ dmypy inspect foo.py:7:5 -vv
+$ dmypy inspect foo.py:7:5 -vv # NO-MODIFY
 "builtins.int"
 "builtins.int"
 "None"
-$ dmypy inspect foo.py:7:5 -vv --limit=1
+$ dmypy inspect foo.py:7:5 -vv --limit=1 # NO-MODIFY
 "builtins.int"
-$ dmypy inspect foo.py:7:3
+$ dmypy inspect foo.py:7:3 # NO-MODIFY
 "Callable[[int], None]"
 "None"
-$ dmypy inspect foo.py:1:2
+$ dmypy inspect foo.py:1:2 # NO-MODIFY
 Can't find any expressions at position 1:2
 == Return code: 1
-$ dmypy inspect foo.py:11:5 --force-reload
+$ dmypy inspect foo.py:11:5 --force-reload # NO-MODIFY
 No known type available for "NameExpr" (maybe unreachable)
 No known type available for "OpExpr" (maybe unreachable)
 == Return code: 1
@@ -541,20 +541,20 @@ def unreachable(x: int, y: int) -> None:
     x and y  # line 11
 
 [case testDaemonGetAttrs]
-$ dmypy start --log-file log.txt -- --follow-imports=error --no-error-summary
+$ dmypy start --log-file log.txt -- --follow-imports=error --no-error-summary --no-pretty
 Daemon started
-$ dmypy check foo.py bar.py --export-types
-$ dmypy inspect foo.py:9:1 --show attrs --include-span --include-kind -vv
+$ dmypy check foo.py bar.py --export-types # NO-MODIFY
+$ dmypy inspect foo.py:9:1 --show attrs --include-span --include-kind -vv # NO-MODIFY
 NameExpr:9:1:9:1 -> {"foo.C": ["a", "x", "y"], "foo.B": ["a", "b"]}
-$ dmypy inspect foo.py:11:10 --show attrs
+$ dmypy inspect foo.py:11:10 --show attrs # NO-MODIFY
 No known type available for "StrExpr" (maybe unreachable or try --force-reload)
 == Return code: 1
-$ dmypy inspect foo.py:1:1 --show attrs
+$ dmypy inspect foo.py:1:1 --show attrs # NO-MODIFY
 Can't find any expressions at position 1:1
 == Return code: 1
-$ dmypy inspect --show attrs bar.py:10:1
+$ dmypy inspect --show attrs bar.py:10:1 # NO-MODIFY
 {"A": ["z"], "B": ["z"]}
-$ dmypy inspect --show attrs bar.py:10:1 --union-attrs
+$ dmypy inspect --show attrs bar.py:10:1 --union-attrs # NO-MODIFY
 {"A": ["x", "z"], "B": ["y", "z"]}
 
 [file foo.py]
@@ -583,24 +583,24 @@ var: Union[A, B]
 var  # line 10
 
 [case testDaemonGetDefinition]
-$ dmypy start --log-file log.txt -- --follow-imports=error --no-error-summary
+$ dmypy start --log-file log.txt -- --follow-imports=error --no-error-summary # NO-MODIFY
 Daemon started
-$ dmypy check foo.py bar/baz.py bar/__init__.py --export-types
-$ dmypy inspect foo.py:5:1 --show definition
+$ dmypy check foo.py bar/baz.py bar/__init__.py --export-types # NO-MODIFY
+$ dmypy inspect foo.py:5:1 --show definition # NO-MODIFY
 foo.py:4:1:y
-$ dmypy inspect foo.py:2:3 --show definition --include-span --include-kind -vv
+$ dmypy inspect foo.py:2:3 --show definition --include-span --include-kind -vv # NO-MODIFY
 MemberExpr:2:1:2:7 -> bar/baz.py:3:5:Alias
-$ dmypy inspect foo.py:3:1 --show definition
+$ dmypy inspect foo.py:3:1 --show definition # NO-MODIFY
 Cannot find definition for "NameExpr" at 3:1:3:1
 == Return code: 1
-$ dmypy inspect foo.py:4:6 --show definition
+$ dmypy inspect foo.py:4:6 --show definition # NO-MODIFY
 No name or member expressions at 4:6
 == Return code: 1
-$ dmypy inspect foo.py:7:1:7:6 --show definition
+$ dmypy inspect foo.py:7:1:7:6 --show definition # NO-MODIFY
 bar/baz.py:4:5:attr
-$ dmypy inspect foo.py:10:10 --show definition --include-span
+$ dmypy inspect foo.py:10:10 --show definition --include-span # NO-MODIFY
 10:1:10:12 -> bar/baz.py:6:1:test
-$ dmypy inspect foo.py:14:6 --show definition --include-span --include-kind
+$ dmypy inspect foo.py:14:6 --show definition --include-span --include-kind # NO-MODIFY
 NameExpr:14:5:14:7 -> foo.py:13:9:arg
 MemberExpr:14:5:14:9 -> bar/baz.py:9:5:x, bar/baz.py:11:5:x
 
@@ -635,12 +635,12 @@ class B:
     x: int
 
 [case testDaemonInspectSelectCorrectFile]
-$ dmypy run test.py --export-types
+$ dmypy run test.py --export-types # NO-MODIFY
 Daemon started
 Success: no issues found in 1 source file
-$ dmypy inspect demo/test.py:1:1
+$ dmypy inspect demo/test.py:1:1 # NO-MODIFY
 "int"
-$ dmypy inspect test.py:1:1
+$ dmypy inspect test.py:1:1 # NO-MODIFY
 "str"
 [file test.py]
 b: str
@@ -650,12 +650,12 @@ a: int
 
 [case testUnusedTypeIgnorePreservedOnRerun]
 -- Regression test for https://github.com/python/mypy/issues/9655
-$ dmypy start -- --warn-unused-ignores --no-error-summary --hide-error-codes
+$ dmypy start -- --warn-unused-ignores --no-error-summary --hide-error-codes --no-pretty
 Daemon started
-$ dmypy check -- bar.py
+$ dmypy check -- bar.py # NO-MODIFY
 bar.py:2: error: Unused "type: ignore" comment
 == Return code: 1
-$ dmypy check -- bar.py
+$ dmypy check -- bar.py # NO-MODIFY
 bar.py:2: error: Unused "type: ignore" comment
 == Return code: 1
 
@@ -667,12 +667,12 @@ a = 1  # type: ignore
 
 [case testTypeIgnoreWithoutCodePreservedOnRerun]
 -- Regression test for https://github.com/python/mypy/issues/9655
-$ dmypy start -- --enable-error-code ignore-without-code --no-error-summary
+$ dmypy start -- --enable-error-code ignore-without-code --no-error-summary --no-pretty
 Daemon started
-$ dmypy check -- bar.py
+$ dmypy check -- bar.py # NO-MODIFY
 bar.py:2: error: "type: ignore" comment without error code  [ignore-without-code]
 == Return code: 1
-$ dmypy check -- bar.py
+$ dmypy check -- bar.py # NO-MODIFY
 bar.py:2: error: "type: ignore" comment without error code  [ignore-without-code]
 == Return code: 1
 
@@ -684,12 +684,12 @@ a = 1  # type: ignore
 
 [case testPossiblyUndefinedVarsPreservedAfterRerun]
 -- Regression test for https://github.com/python/mypy/issues/9655
-$ dmypy start -- --enable-error-code possibly-undefined --no-error-summary
+$ dmypy start -- --enable-error-code possibly-undefined --no-error-summary --no-pretty
 Daemon started
-$ dmypy check -- bar.py
+$ dmypy check -- bar.py # NO-MODIFY
 bar.py:4: error: Name "a" may be undefined  [possibly-undefined]
 == Return code: 1
-$ dmypy check -- bar.py
+$ dmypy check -- bar.py # NO-MODIFY
 bar.py:4: error: Name "a" may be undefined  [possibly-undefined]
 == Return code: 1
 
@@ -702,12 +702,12 @@ if False:
 a
 
 [case testUnusedTypeIgnorePreservedOnRerunWithIgnoredMissingImports]
-$ dmypy start -- --no-error-summary --ignore-missing-imports --warn-unused-ignores
+$ dmypy start -- --no-error-summary --ignore-missing-imports --warn-unused-ignores --no-pretty
 Daemon started
-$ dmypy check foo
+$ dmypy check foo # NO-MODIFY
 foo/main.py:3: error: Unused "type: ignore" comment  [unused-ignore]
 == Return code: 1
-$ dmypy check foo
+$ dmypy check foo # NO-MODIFY
 foo/main.py:3: error: Unused "type: ignore" comment  [unused-ignore]
 == Return code: 1
 
@@ -723,12 +723,12 @@ from foo.does_not_exist import *
 a = 1  # type: ignore
 
 [case testModuleDoesNotExistPreservedOnRerun]
-$ dmypy start -- --no-error-summary --ignore-missing-imports
+$ dmypy start -- --no-error-summary --ignore-missing-imports --no-pretty
 Daemon started
-$ dmypy check foo
+$ dmypy check foo # NO-MODIFY
 foo/main.py:1: error: Module "foo" has no attribute "does_not_exist"  [attr-defined]
 == Return code: 1
-$ dmypy check foo
+$ dmypy check foo # NO-MODIFY
 foo/main.py:1: error: Module "foo" has no attribute "does_not_exist"  [attr-defined]
 == Return code: 1
 
@@ -742,13 +742,13 @@ from unused.submodule import *
 
 [case testReturnTypeIgnoreAfterUnknownImport]
 -- Return type ignores after unknown imports and unused modules are respected on the second pass.
-$ dmypy start -- --warn-unused-ignores --no-error-summary
+$ dmypy start -- --warn-unused-ignores --no-error-summary --no-pretty
 Daemon started
-$ dmypy check -- foo.py
+$ dmypy check -- foo.py # NO-MODIFY
 foo.py:2: error: Cannot find implementation or library stub for module named "a_module_which_does_not_exist"  [import-not-found]
 foo.py:2: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
 == Return code: 1
-$ dmypy check -- foo.py
+$ dmypy check -- foo.py # NO-MODIFY
 foo.py:2: error: Cannot find implementation or library stub for module named "a_module_which_does_not_exist"  [import-not-found]
 foo.py:2: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
 == Return code: 1
@@ -762,13 +762,13 @@ def is_foo() -> str:
     return True  # type: ignore
 
 [case testAttrsTypeIgnoreAfterUnknownImport]
-$ dmypy start -- --warn-unused-ignores --no-error-summary
+$ dmypy start -- --warn-unused-ignores --no-error-summary --no-pretty
 Daemon started
-$ dmypy check -- foo.py
+$ dmypy check -- foo.py # NO-MODIFY
 foo.py:3: error: Cannot find implementation or library stub for module named "a_module_which_does_not_exist"  [import-not-found]
 foo.py:3: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
 == Return code: 1
-$ dmypy check -- foo.py
+$ dmypy check -- foo.py # NO-MODIFY
 foo.py:3: error: Cannot find implementation or library stub for module named "a_module_which_does_not_exist"  [import-not-found]
 foo.py:3: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
 == Return code: 1
@@ -786,16 +786,16 @@ class A:
         self.__attrs_init__()  # type: ignore[attr-defined]
 
 [case testDaemonImportAncestors]
-$ dmypy run test.py
+$ dmypy run -- --no-pretty --show-error-codes test.py # NO-MODIFY
 Daemon started
 test.py:2: error: Unsupported operand types for + ("int" and "str")  [operator]
 Found 1 error in 1 file (checked 1 source file)
 == Return code: 1
-$ dmypy run test.py
+$ dmypy run -- --no-pretty --show-error-codes test.py # NO-MODIFY
 test.py:2: error: Unsupported operand types for + ("int" and "str")  [operator]
 Found 1 error in 1 file (checked 1 source file)
 == Return code: 1
-$ dmypy run test.py
+$ dmypy run -- --no-pretty --show-error-codes test.py # NO-MODIFY
 test.py:2: error: Unsupported operand types for + ("int" and "str")  [operator]
 Found 1 error in 1 file (checked 1 source file)
 == Return code: 1