Don't suggest --install-types in daemon mode (#10508)

It doesn't work with mypy daemon.

Fixes #10015.

Author: JukkaL

mypy/build.py

@@ -2546,7 +2546,8 @@ def module_not_found(manager: BuildManager, line: int, caller_state: State,
                       blocker=True)
         errors.raise_error()
     else:
-        msg, notes = reason.error_message_templates()
+        daemon = manager.options.fine_grained_incremental
+        msg, notes = reason.error_message_templates(daemon)
         pyver = '%d.%d' % manager.options.python_version
         errors.report(line, 0, msg.format(module=target, pyver=pyver), code=codes.IMPORT)
         top_level = target.partition('.')[0]

mypy/modulefinder.py

@@ -59,7 +59,7 @@ class ModuleNotFoundReason(Enum):
     # Stub PyPI package (typically types-pkgname) known to exist but not installed.
     STUBS_NOT_INSTALLED = 3
 
-    def error_message_templates(self) -> Tuple[str, List[str]]:
+    def error_message_templates(self, daemon: bool) -> Tuple[str, List[str]]:
         doc_link = "See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports"
         if self is ModuleNotFoundReason.NOT_FOUND:
             msg = 'Cannot find implementation or library stub for module named "{module}"'
@@ -75,9 +75,11 @@ def error_message_templates(self) -> Tuple[str, List[str]]:
             msg = (
                 'Library stubs not installed for "{module}" (or incompatible with Python {pyver})'
             )
-            notes = ['Hint: "python3 -m pip install {stub_dist}"',
-                     '(or run "mypy --install-types" to install all missing stub packages)',
-                     doc_link]
+            notes = ['Hint: "python3 -m pip install {stub_dist}"']
+            if not daemon:
+                notes.append(
+                    '(or run "mypy --install-types" to install all missing stub packages)')
+            notes.append(doc_link)
         else:
             assert False
         return msg, notes

test-data/unit/fine-grained-modules.test

@@ -2185,3 +2185,21 @@ x = 'x'
 
 [out]
 ==
+
+[case testLibraryStubsNotInstalled]
+import a
+[file a.py]
+import waitress
+[file a.py.2]
+# nothing
+[file a.py.3]
+import pynamodb
+[out]
+a.py:1: error: Library stubs not installed for "waitress" (or incompatible with Python 3.6)
+a.py:1: note: Hint: "python3 -m pip install types-waitress"
+a.py:1: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
+==
+==
+a.py:1: error: Library stubs not installed for "pynamodb" (or incompatible with Python 3.6)
+a.py:1: note: Hint: "python3 -m pip install types-pynamodb"
+a.py:1: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports