Merge branch '2.0.x'

CHANGES.rst

@@ -31,6 +31,8 @@ Unreleased
 -   Roll back a change to the order that URL matching was done. The
     URL is again matched after the session is loaded, so the session is
     available in custom URL converters. :issue:`4053`
+-   Re-add deprecated ``Config.from_json``, which was accidentally
+    removed early. :issue:`4078`
 
 
 Version 2.0.0

docs/conf.py

@@ -49,10 +49,10 @@ html_context = {
     ]
 }
 html_sidebars = {
-    "index": ["project.html", "localtoc.html", "searchbox.html"],
-    "**": ["localtoc.html", "relations.html", "searchbox.html"],
+    "index": ["project.html", "localtoc.html", "searchbox.html", "ethicalads.html"],
+    "**": ["localtoc.html", "relations.html", "searchbox.html", "ethicalads.html"],
 }
-singlehtml_sidebars = {"index": ["project.html", "localtoc.html"]}
+singlehtml_sidebars = {"index": ["project.html", "localtoc.html", "ethicalads.html"]}
 html_static_path = ["_static"]
 html_favicon = "_static/flask-icon.png"
 html_logo = "_static/flask-icon.png"

docs/quickstart.rst

@@ -246,7 +246,7 @@ of the argument like ``<converter:variable_name>``. ::
     @app.route('/user/<username>')
     def show_user_profile(username):
         # show the user profile for that user
-        return f'User {username}'
+        return f'User {escape(username)}'
 
     @app.route('/post/<int:post_id>')
     def show_post(post_id):
@@ -256,7 +256,7 @@ of the argument like ``<converter:variable_name>``. ::
     @app.route('/path/<path:subpath>')
     def show_subpath(subpath):
         # show the subpath after /path/
-        return f'Subpath {subpath}'
+        return f'Subpath {escape(subpath)}'
 
 Converter types:
 

requirements/dev.txt

@@ -18,11 +18,11 @@ blinker==1.4
     # via -r requirements/tests.in
 certifi==2020.12.5
     # via requests
-cfgv==3.2.0
+cfgv==3.3.0
     # via pre-commit
 chardet==4.0.0
     # via requests
-click==8.0.0
+click==8.0.1
     # via pip-tools
 distlib==0.3.1
     # via virtualenv
@@ -44,9 +44,9 @@ imagesize==1.2.0
     # via sphinx
 iniconfig==1.1.1
     # via pytest
-jinja2==3.0.0
+jinja2==3.0.1
     # via sphinx
-markupsafe==2.0.0
+markupsafe==2.0.1
     # via jinja2
 mypy-extensions==0.4.3
     # via mypy
@@ -60,7 +60,7 @@ packaging==20.9
     #   pytest
     #   sphinx
     #   tox
-pallets-sphinx-themes==2.0.0
+pallets-sphinx-themes==2.0.1
     # via -r requirements/docs.in
 pep517==0.10.0
     # via pip-tools
@@ -102,7 +102,7 @@ sphinx-issues==1.2.0
     # via -r requirements/docs.in
 sphinx-tabs==3.0.0
     # via -r requirements/docs.in
-git+https://github.com/sphinx-doc/sphinx.git@96dbe5e3
+sphinx==4.0.2
     # via
     #   -r requirements/docs.in
     #   pallets-sphinx-themes

requirements/docs.in

@@ -1,5 +1,5 @@
 Pallets-Sphinx-Themes
-git+https://github.com/sphinx-doc/sphinx.git@96dbe5e3  # https://github.com/sphinx-doc/sphinx/issues/921
+Sphinx
 sphinx-issues
 sphinxcontrib-log-cabinet
 sphinx-tabs

requirements/docs.txt

@@ -20,15 +20,15 @@ idna==2.10
     # via requests
 imagesize==1.2.0
     # via sphinx
-jinja2==3.0.0
+jinja2==3.0.1
     # via sphinx
-markupsafe==2.0.0
+markupsafe==2.0.1
     # via jinja2
 packaging==20.9
     # via
     #   pallets-sphinx-themes
     #   sphinx
-pallets-sphinx-themes==2.0.0
+pallets-sphinx-themes==2.0.1
     # via -r requirements/docs.in
 pygments==2.9.0
     # via
@@ -46,7 +46,7 @@ sphinx-issues==1.2.0
     # via -r requirements/docs.in
 sphinx-tabs==3.0.0
     # via -r requirements/docs.in
-git+https://github.com/sphinx-doc/sphinx.git@96dbe5e3
+sphinx==4.0.2
     # via
     #   -r requirements/docs.in
     #   pallets-sphinx-themes

src/flask/blueprints.py

@@ -354,6 +354,8 @@ class Blueprint(Scaffold):
                 bp_options["url_prefix"] = (
                     state.url_prefix.rstrip("/") + "/" + bp_url_prefix.lstrip("/")
                 )
+            else:
+                bp_options["url_prefix"] = state.url_prefix
 
             bp_options["name_prefix"] = options.get("name_prefix", "") + self.name + "."
             blueprint.register(app, bp_options)

src/flask/config.py

@@ -202,6 +202,31 @@ class Config(dict):
 
         return self.from_mapping(obj)
 
+    def from_json(self, filename: str, silent: bool = False) -> bool:
+        """Update the values in the config from a JSON file. The loaded
+        data is passed to the :meth:`from_mapping` method.
+
+        :param filename: The path to the JSON file. This can be an
+            absolute path or relative to the config root path.
+        :param silent: Ignore the file if it doesn't exist.
+
+        .. deprecated:: 2.0.0
+            Will be removed in Flask 2.1. Use :meth:`from_file` instead.
+            This was removed early in 2.0.0, was added back in 2.0.1.
+
+        .. versionadded:: 0.11
+        """
+        import warnings
+        from . import json
+
+        warnings.warn(
+            "'from_json' is deprecated and will be removed in Flask"
+            " 2.1. Use 'from_file(path, json.load)' instead.",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        return self.from_file(filename, json.load, silent=silent)
+
     def from_mapping(
         self, mapping: t.Optional[t.Mapping[str, t.Any]] = None, **kwargs: t.Any
     ) -> bool:

src/flask/typing.py

@@ -2,8 +2,8 @@ import typing as t
 
 
 if t.TYPE_CHECKING:
+    from _typeshed.wsgi import WSGIApplication  # noqa: F401
     from werkzeug.datastructures import Headers  # noqa: F401
-    from wsgiref.types import WSGIApplication  # noqa: F401
     from .wrappers import Response  # noqa: F401
 
 # The possible types that are directly convertible or are a Response object.

tests/test_blueprints.py

@@ -868,3 +868,17 @@ def test_nested_blueprint_url_prefix(app, client):
     assert client.get("/parent/child/").data == b"Child"
     assert client.get("/parent/child/grandchild/").data == b"Grandchild"
     assert client.get("/parent/child/orange/").data == b"Apple"
+
+
+def test_nested_blueprint_url_prefix_only_parent_prefix(app, client):
+    parent = flask.Blueprint("parent", __name__)
+    child = flask.Blueprint("child", __name__)
+
+    @child.route("/child-endpoint")
+    def child_index():
+        return "Child"
+
+    parent.register_blueprint(child)
+    app.register_blueprint(parent, url_prefix="/parent")
+
+    assert client.get("/parent/child-endpoint").data == b"Child"

tests/test_cli.py

@@ -5,6 +5,7 @@ import ssl
 import sys
 import types
 from functools import partial
+from pathlib import Path
 from unittest.mock import patch
 
 import click
@@ -29,8 +30,8 @@ from flask.cli import run_command
 from flask.cli import ScriptInfo
 from flask.cli import with_appcontext
 
-cwd = os.getcwd()
-test_path = os.path.abspath(os.path.join(os.path.dirname(__file__), "test_apps"))
+cwd = Path.cwd()
+test_path = (Path(__file__) / ".." / "test_apps").resolve()
 
 
 @pytest.fixture
@@ -152,29 +153,25 @@ def test_find_best_app(test_apps):
     (
         ("test", cwd, "test"),
         ("test.py", cwd, "test"),
-        ("a/test", os.path.join(cwd, "a"), "test"),
+        ("a/test", cwd / "a", "test"),
         ("test/__init__.py", cwd, "test"),
         ("test/__init__", cwd, "test"),
         # nested package
         (
-            os.path.join(test_path, "cliapp", "inner1", "__init__"),
+            test_path / "cliapp" / "inner1" / "__init__",
             test_path,
             "cliapp.inner1",
         ),
         (
-            os.path.join(test_path, "cliapp", "inner1", "inner2"),
+            test_path / "cliapp" / "inner1" / "inner2",
             test_path,
             "cliapp.inner1.inner2",
         ),
         # dotted name
         ("test.a.b", cwd, "test.a.b"),
-        (os.path.join(test_path, "cliapp.app"), test_path, "cliapp.app"),
+        (test_path / "cliapp.app", test_path, "cliapp.app"),
         # not a Python file, will be caught during import
-        (
-            os.path.join(test_path, "cliapp", "message.txt"),
-            test_path,
-            "cliapp.message.txt",
-        ),
+        (test_path / "cliapp" / "message.txt", test_path, "cliapp.message.txt"),
     ),
 )
 def test_prepare_import(request, value, path, result):
@@ -193,7 +190,7 @@ def test_prepare_import(request, value, path, result):
     request.addfinalizer(reset_path)
 
     assert prepare_import(value) == result
-    assert sys.path[0] == path
+    assert sys.path[0] == str(path)
 
 
 @pytest.mark.parametrize(
@@ -278,9 +275,8 @@ def test_scriptinfo(test_apps, monkeypatch):
     assert obj.load_app() is app
 
     # import app with module's absolute path
-    cli_app_path = os.path.abspath(
-        os.path.join(os.path.dirname(__file__), "test_apps", "cliapp", "app.py")
-    )
+    cli_app_path = str(test_path / "cliapp" / "app.py")
+
     obj = ScriptInfo(app_import_path=cli_app_path)
     app = obj.load_app()
     assert app.name == "testapp"
@@ -302,19 +298,13 @@ def test_scriptinfo(test_apps, monkeypatch):
     pytest.raises(NoAppException, obj.load_app)
 
     # import app from wsgi.py in current directory
-    monkeypatch.chdir(
-        os.path.abspath(
-            os.path.join(os.path.dirname(__file__), "test_apps", "helloworld")
-        )
-    )
+    monkeypatch.chdir(test_path / "helloworld")
     obj = ScriptInfo()
     app = obj.load_app()
     assert app.name == "hello"
 
     # import app from app.py in current directory
-    monkeypatch.chdir(
-        os.path.abspath(os.path.join(os.path.dirname(__file__), "test_apps", "cliapp"))
-    )
+    monkeypatch.chdir(test_path / "cliapp")
     obj = ScriptInfo()
     app = obj.load_app()
     assert app.name == "testapp"
@@ -513,7 +503,7 @@ def test_load_dotenv(monkeypatch):
     monkeypatch.setenv("EGGS", "3")
     monkeypatch.chdir(test_path)
     assert load_dotenv()
-    assert os.getcwd() == test_path
+    assert Path.cwd() == test_path
     # .flaskenv doesn't overwrite .env
     assert os.environ["FOO"] == "env"
     # set only in .flaskenv
@@ -533,9 +523,8 @@ def test_dotenv_path(monkeypatch):
     for item in ("FOO", "BAR", "EGGS"):
         monkeypatch._setitem.append((os.environ, item, notset))
 
-    cwd = os.getcwd()
-    load_dotenv(os.path.join(test_path, ".flaskenv"))
-    assert os.getcwd() == cwd
+    load_dotenv(test_path / ".flaskenv")
+    assert Path.cwd() == cwd
     assert "FOO" in os.environ