Mailman 3 January 2025 - Python-checkins

[3.13] Docs: amend json.dump() post gh-128482 (GH-128489) (#128493)
by erlend-aasland Jan. 4, 2025

Jan. 4, 2025

https://github.com/python/cpython/commit/62b4ca0d53f7b273e42b55c5307d46be33… commit: 62b4ca0d53f7b273e42b55c5307d46be33596b35 branch: 3.13 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: erlend-aasland <erlend.aasland(a)protonmail.com> date: 2025-01-04T19:03:01Z summary: [3.13] Docs: amend json.dump() post gh-128482 (GH-128489) (#128493) (cherry picked from commit 87ee76062a7eb9c0fa2b94e36cfed21d86ae90ac) Co-authored-by: Erlend E. Aasland <erlend(a)python.org> files: M Doc/library/json.rst diff --git a/Doc/library/json.rst b/Doc/library/json.rst index ce0e652ee58f7f..21f36cb38f1193 100644 --- a/Doc/library/json.rst +++ b/Doc/library/json.rst @@ -154,10 +154,6 @@ Basic Usage :term:`file-like object`) using this :ref:`Python-to-JSON conversion table <py-to-json-table>`. - To use a custom :class:`JSONEncoder` subclass (for example, one that overrides the - :meth:`~JSONEncoder.default` method to serialize additional types), specify it with the - *cls* keyword argument; otherwise :class:`JSONEncoder` is used. - .. note:: Unlike :mod:`pickle` and :mod:`marshal`, JSON is not a framed protocol, @@ -197,6 +193,13 @@ Basic Usage If ``True`` (the default), their JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``) are used. + :param cls: + If set, a custom JSON encoder with the + :meth:`~JSONEncoder.default` method overridden, + for serializing into custom datatypes. + If ``None`` (the default), :class:`!JSONEncoder` is used. + :type cls: a :class:`JSONEncoder` subclass + :param indent: If a positive integer or string, JSON array elements and object members will be pretty-printed with that indent level. @@ -223,7 +226,7 @@ Basic Usage If ``None`` (the default), :exc:`!TypeError` is raised. :type default: :term:`callable` | None - :param sort_keys: + :param bool sort_keys: If ``True``, dictionaries will be outputted sorted by key. Default ``False``.

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Docs: amend json.dump() post gh-128482 (#128489)
by erlend-aasland Jan. 4, 2025

Jan. 4, 2025

https://github.com/python/cpython/commit/87ee76062a7eb9c0fa2b94e36cfed21d86… commit: 87ee76062a7eb9c0fa2b94e36cfed21d86ae90ac branch: main author: Erlend E. Aasland <erlend(a)python.org> committer: erlend-aasland <erlend.aasland(a)protonmail.com> date: 2025-01-04T19:57:59+01:00 summary: Docs: amend json.dump() post gh-128482 (#128489) files: M Doc/library/json.rst diff --git a/Doc/library/json.rst b/Doc/library/json.rst index f11109fb0ecfed..169291f74f44a5 100644 --- a/Doc/library/json.rst +++ b/Doc/library/json.rst @@ -154,10 +154,6 @@ Basic Usage :term:`file-like object`) using this :ref:`Python-to-JSON conversion table <py-to-json-table>`. - To use a custom :class:`JSONEncoder` subclass (for example, one that overrides the - :meth:`~JSONEncoder.default` method to serialize additional types), specify it with the - *cls* keyword argument; otherwise :class:`JSONEncoder` is used. - .. note:: Unlike :mod:`pickle` and :mod:`marshal`, JSON is not a framed protocol, @@ -197,6 +193,13 @@ Basic Usage If ``True`` (the default), their JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``) are used. + :param cls: + If set, a custom JSON encoder with the + :meth:`~JSONEncoder.default` method overridden, + for serializing into custom datatypes. + If ``None`` (the default), :class:`!JSONEncoder` is used. + :type cls: a :class:`JSONEncoder` subclass + :param indent: If a positive integer or string, JSON array elements and object members will be pretty-printed with that indent level. @@ -223,7 +226,7 @@ Basic Usage If ``None`` (the default), :exc:`!TypeError` is raised. :type default: :term:`callable` | None - :param sort_keys: + :param bool sort_keys: If ``True``, dictionaries will be outputted sorted by key. Default ``False``.

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[3.12] gh-126719: Clarify math.fmod docs (GH-127741) (#128492)
by erlend-aasland Jan. 4, 2025

Jan. 4, 2025

https://github.com/python/cpython/commit/98d3f2bc6e2b944f5fba1e16b0ca7f6445… commit: 98d3f2bc6e2b944f5fba1e16b0ca7f64459aa5e5 branch: 3.12 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: erlend-aasland <erlend.aasland(a)protonmail.com> date: 2025-01-04T17:45:19Z summary: [3.12] gh-126719: Clarify math.fmod docs (GH-127741) (#128492) (cherry picked from commit f28d471fbe99f9eaac05d60ed40da47b0b56fe86) Co-authored-by: Stan Ulbrych <89152624+StanFromIreland(a)users.noreply.github.com> Co-authored-by: Bénédikt Tran <10796600+picnixz(a)users.noreply.github.com> files: M Doc/library/math.rst diff --git a/Doc/library/math.rst b/Doc/library/math.rst index fb8527128a2555..0648293bfa7b89 100644 --- a/Doc/library/math.rst +++ b/Doc/library/math.rst @@ -84,7 +84,8 @@ Number-theoretic and representation functions .. function:: fmod(x, y) - Return ``fmod(x, y)``, as defined by the platform C library. Note that the + Return the floating-point remainder of ``x / y``, + as defined by the platform C library function ``fmod(x, y)``. Note that the Python expression ``x % y`` may not return the same result. The intent of the C standard is that ``fmod(x, y)`` be exactly (mathematically; to infinite precision) equal to ``x - n*y`` for some integer *n* such that the result has

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[3.13] gh-126719: Clarify math.fmod docs (GH-127741) (#128491)
by erlend-aasland Jan. 4, 2025

Jan. 4, 2025

https://github.com/python/cpython/commit/65fd75809873456664c0b14a0d147b6676… commit: 65fd75809873456664c0b14a0d147b6676f1bbb0 branch: 3.13 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: erlend-aasland <erlend.aasland(a)protonmail.com> date: 2025-01-04T17:44:36Z summary: [3.13] gh-126719: Clarify math.fmod docs (GH-127741) (#128491) (cherry picked from commit f28d471fbe99f9eaac05d60ed40da47b0b56fe86) Co-authored-by: Stan Ulbrych <89152624+StanFromIreland(a)users.noreply.github.com> Co-authored-by: Bénédikt Tran <10796600+picnixz(a)users.noreply.github.com> files: M Doc/library/math.rst diff --git a/Doc/library/math.rst b/Doc/library/math.rst index 68878806749f28..25886da908f9a2 100644 --- a/Doc/library/math.rst +++ b/Doc/library/math.rst @@ -248,7 +248,8 @@ Floating point arithmetic .. function:: fmod(x, y) - Return ``fmod(x, y)``, as defined by the platform C library. Note that the + Return the floating-point remainder of ``x / y``, + as defined by the platform C library function ``fmod(x, y)``. Note that the Python expression ``x % y`` may not return the same result. The intent of the C standard is that ``fmod(x, y)`` be exactly (mathematically; to infinite precision) equal to ``x - n*y`` for some integer *n* such that the result has

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gh-126719: Clarify math.fmod docs (#127741)
by erlend-aasland Jan. 4, 2025

Jan. 4, 2025

https://github.com/python/cpython/commit/f28d471fbe99f9eaac05d60ed40da47b0b… commit: f28d471fbe99f9eaac05d60ed40da47b0b56fe86 branch: main author: Stan Ulbrych <89152624+StanFromIreland(a)users.noreply.github.com> committer: erlend-aasland <erlend.aasland(a)protonmail.com> date: 2025-01-04T18:38:57+01:00 summary: gh-126719: Clarify math.fmod docs (#127741) Co-authored-by: Bénédikt Tran <10796600+picnixz(a)users.noreply.github.com> files: M Doc/library/math.rst diff --git a/Doc/library/math.rst b/Doc/library/math.rst index bf79b23a72bbf9..c78b313db5152d 100644 --- a/Doc/library/math.rst +++ b/Doc/library/math.rst @@ -248,7 +248,8 @@ Floating point arithmetic .. function:: fmod(x, y) - Return ``fmod(x, y)``, as defined by the platform C library. Note that the + Return the floating-point remainder of ``x / y``, + as defined by the platform C library function ``fmod(x, y)``. Note that the Python expression ``x % y`` may not return the same result. The intent of the C standard is that ``fmod(x, y)`` be exactly (mathematically; to infinite precision) equal to ``x - n*y`` for some integer *n* such that the result has

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[3.12] Docs: mark up json.dump() using parameter list (GH-128482) (#128487)
by erlend-aasland Jan. 4, 2025

Jan. 4, 2025

https://github.com/python/cpython/commit/731fc4052c1ecdaa2eb4a774eb8279b7c7… commit: 731fc4052c1ecdaa2eb4a774eb8279b7c7e3d4e1 branch: 3.12 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: erlend-aasland <erlend.aasland(a)protonmail.com> date: 2025-01-04T15:50:55Z summary: [3.12] Docs: mark up json.dump() using parameter list (GH-128482) (#128487) (cherry picked from commit a0088b40bb212dc132e147d04f9287cabd72d163) Co-authored-by: Erlend E. Aasland <erlend(a)python.org> Co-authored-by: Hugo van Kemenade <1324225+hugovk(a)users.noreply.github.com> files: M Doc/library/json.rst diff --git a/Doc/library/json.rst b/Doc/library/json.rst index 88882aee2b258e..aa33b175659b56 100644 --- a/Doc/library/json.rst +++ b/Doc/library/json.rst @@ -140,69 +140,91 @@ Basic Usage sort_keys=False, **kw) Serialize *obj* as a JSON formatted stream to *fp* (a ``.write()``-supporting - :term:`file-like object`) using this :ref:`conversion table + :term:`file-like object`) using this :ref:`Python-to-JSON conversion table <py-to-json-table>`. - If *skipkeys* is true (default: ``False``), then dict keys that are not - of a basic type (:class:`str`, :class:`int`, :class:`float`, :class:`bool`, - ``None``) will be skipped instead of raising a :exc:`TypeError`. - - The :mod:`json` module always produces :class:`str` objects, not - :class:`bytes` objects. Therefore, ``fp.write()`` must support :class:`str` - input. - - If *ensure_ascii* is true (the default), the output is guaranteed to - have all incoming non-ASCII characters escaped. If *ensure_ascii* is - false, these characters will be output as-is. + To use a custom :class:`JSONEncoder` subclass (for example, one that overrides the + :meth:`~JSONEncoder.default` method to serialize additional types), specify it with the + *cls* keyword argument; otherwise :class:`JSONEncoder` is used. - If *check_circular* is false (default: ``True``), then the circular - reference check for container types will be skipped and a circular reference - will result in a :exc:`RecursionError` (or worse). + .. note:: - If *allow_nan* is false (default: ``True``), then it will be a - :exc:`ValueError` to serialize out of range :class:`float` values (``nan``, - ``inf``, ``-inf``) in strict compliance of the JSON specification. - If *allow_nan* is true, their JavaScript equivalents (``NaN``, - ``Infinity``, ``-Infinity``) will be used. + Unlike :mod:`pickle` and :mod:`marshal`, JSON is not a framed protocol, + so trying to serialize multiple objects with repeated calls to + :func:`dump` using the same *fp* will result in an invalid JSON file. - If *indent* is a non-negative integer or string, then JSON array elements and - object members will be pretty-printed with that indent level. An indent level - of 0, negative, or ``""`` will only insert newlines. ``None`` (the default) - selects the most compact representation. Using a positive integer indent - indents that many spaces per level. If *indent* is a string (such as ``"\t"``), - that string is used to indent each level. + :param object obj: + The Python object to be serialized. + + :param fp: + The file-like object *obj* will be serialized to. + The :mod:`!json` module always produces :class:`str` objects, + not :class:`bytes` objects, + therefore ``fp.write()`` must support :class:`str` input. + :type fp: :term:`file-like object` + + :param bool skipkeys: + If ``True``, keys that are not of a basic type + (:class:`str`, :class:`int`, :class:`float`, :class:`bool`, ``None``) + will be skipped instead of raising a :exc:`TypeError`. + Default ``False``. + + :param bool ensure_ascii: + If ``True`` (the default), the output is guaranteed to + have all incoming non-ASCII characters escaped. + If ``False``, these characters will be outputted as-is. + + :param bool check_circular: + If ``False``, the circular reference check for container types is skipped + and a circular reference will result in a :exc:`RecursionError` (or worse). + Default ``True``. + + :param bool allow_nan: + If ``False``, serialization of out-of-range :class:`float` values + (``nan``, ``inf``, ``-inf``) will result in a :exc:`ValueError`, + in strict compliance with the JSON specification. + If ``True`` (the default), their JavaScript equivalents + (``NaN``, ``Infinity``, ``-Infinity``) are used. + + :param indent: + If a positive integer or string, JSON array elements and + object members will be pretty-printed with that indent level. + A positive integer indents that many spaces per level; + a string (such as ``"\t"``) is used to indent each level. + If zero, negative, or ``""`` (the empty string), + only newlines are inserted. + If ``None`` (the default), the most compact representation is used. + :type indent: int | str | None + + :param separators: + A two-tuple: ``(item_separator, key_separator)``. + If ``None`` (the default), *separators* defaults to + ``(', ', ': ')`` if *indent* is ``None``, + and ``(',', ': ')`` otherwise. + For the most compact JSON, + specify ``(',', ':')`` to eliminate whitespace. + :type separators: tuple | None + + :param default: + A function that is called for objects that can't otherwise be serialized. + It should return a JSON encodable version of the object + or raise a :exc:`TypeError`. + If ``None`` (the default), :exc:`!TypeError` is raised. + :type default: :term:`callable` | None + + :param sort_keys: + If ``True``, dictionaries will be outputted sorted by key. + Default ``False``. .. versionchanged:: 3.2 Allow strings for *indent* in addition to integers. - If specified, *separators* should be an ``(item_separator, key_separator)`` - tuple. The default is ``(', ', ': ')`` if *indent* is ``None`` and - ``(',', ': ')`` otherwise. To get the most compact JSON representation, - you should specify ``(',', ':')`` to eliminate whitespace. - .. versionchanged:: 3.4 Use ``(',', ': ')`` as default if *indent* is not ``None``. - If specified, *default* should be a function that gets called for objects that - can't otherwise be serialized. It should return a JSON encodable version of - the object or raise a :exc:`TypeError`. If not specified, :exc:`TypeError` - is raised. - - If *sort_keys* is true (default: ``False``), then the output of - dictionaries will be sorted by key. - - To use a custom :class:`JSONEncoder` subclass (e.g. one that overrides the - :meth:`~JSONEncoder.default` method to serialize additional types), specify it with the - *cls* kwarg; otherwise :class:`JSONEncoder` is used. - .. versionchanged:: 3.6 All optional parameters are now :ref:`keyword-only <keyword-only_parameter>`. - .. note:: - - Unlike :mod:`pickle` and :mod:`marshal`, JSON is not a framed protocol, - so trying to serialize multiple objects with repeated calls to - :func:`dump` using the same *fp* will result in an invalid JSON file. .. function:: dumps(obj, *, skipkeys=False, ensure_ascii=True, \ check_circular=True, allow_nan=True, cls=None, \

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[3.13] Docs: mark up json.dump() using parameter list (GH-128482) (#128486)
by erlend-aasland Jan. 4, 2025

Jan. 4, 2025

https://github.com/python/cpython/commit/ff7ef94e6e31f132570f866338ad1ad8e7… commit: ff7ef94e6e31f132570f866338ad1ad8e736d654 branch: 3.13 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: erlend-aasland <erlend.aasland(a)protonmail.com> date: 2025-01-04T15:49:57Z summary: [3.13] Docs: mark up json.dump() using parameter list (GH-128482) (#128486) (cherry picked from commit a0088b40bb212dc132e147d04f9287cabd72d163) Co-authored-by: Erlend E. Aasland <erlend(a)python.org> Co-authored-by: Hugo van Kemenade <1324225+hugovk(a)users.noreply.github.com> files: M Doc/library/json.rst diff --git a/Doc/library/json.rst b/Doc/library/json.rst index bb7b1852e804a1..ce0e652ee58f7f 100644 --- a/Doc/library/json.rst +++ b/Doc/library/json.rst @@ -151,69 +151,91 @@ Basic Usage sort_keys=False, **kw) Serialize *obj* as a JSON formatted stream to *fp* (a ``.write()``-supporting - :term:`file-like object`) using this :ref:`conversion table + :term:`file-like object`) using this :ref:`Python-to-JSON conversion table <py-to-json-table>`. - If *skipkeys* is true (default: ``False``), then dict keys that are not - of a basic type (:class:`str`, :class:`int`, :class:`float`, :class:`bool`, - ``None``) will be skipped instead of raising a :exc:`TypeError`. - - The :mod:`json` module always produces :class:`str` objects, not - :class:`bytes` objects. Therefore, ``fp.write()`` must support :class:`str` - input. - - If *ensure_ascii* is true (the default), the output is guaranteed to - have all incoming non-ASCII characters escaped. If *ensure_ascii* is - false, these characters will be output as-is. + To use a custom :class:`JSONEncoder` subclass (for example, one that overrides the + :meth:`~JSONEncoder.default` method to serialize additional types), specify it with the + *cls* keyword argument; otherwise :class:`JSONEncoder` is used. - If *check_circular* is false (default: ``True``), then the circular - reference check for container types will be skipped and a circular reference - will result in a :exc:`RecursionError` (or worse). + .. note:: - If *allow_nan* is false (default: ``True``), then it will be a - :exc:`ValueError` to serialize out of range :class:`float` values (``nan``, - ``inf``, ``-inf``) in strict compliance of the JSON specification. - If *allow_nan* is true, their JavaScript equivalents (``NaN``, - ``Infinity``, ``-Infinity``) will be used. + Unlike :mod:`pickle` and :mod:`marshal`, JSON is not a framed protocol, + so trying to serialize multiple objects with repeated calls to + :func:`dump` using the same *fp* will result in an invalid JSON file. - If *indent* is a non-negative integer or string, then JSON array elements and - object members will be pretty-printed with that indent level. An indent level - of 0, negative, or ``""`` will only insert newlines. ``None`` (the default) - selects the most compact representation. Using a positive integer indent - indents that many spaces per level. If *indent* is a string (such as ``"\t"``), - that string is used to indent each level. + :param object obj: + The Python object to be serialized. + + :param fp: + The file-like object *obj* will be serialized to. + The :mod:`!json` module always produces :class:`str` objects, + not :class:`bytes` objects, + therefore ``fp.write()`` must support :class:`str` input. + :type fp: :term:`file-like object` + + :param bool skipkeys: + If ``True``, keys that are not of a basic type + (:class:`str`, :class:`int`, :class:`float`, :class:`bool`, ``None``) + will be skipped instead of raising a :exc:`TypeError`. + Default ``False``. + + :param bool ensure_ascii: + If ``True`` (the default), the output is guaranteed to + have all incoming non-ASCII characters escaped. + If ``False``, these characters will be outputted as-is. + + :param bool check_circular: + If ``False``, the circular reference check for container types is skipped + and a circular reference will result in a :exc:`RecursionError` (or worse). + Default ``True``. + + :param bool allow_nan: + If ``False``, serialization of out-of-range :class:`float` values + (``nan``, ``inf``, ``-inf``) will result in a :exc:`ValueError`, + in strict compliance with the JSON specification. + If ``True`` (the default), their JavaScript equivalents + (``NaN``, ``Infinity``, ``-Infinity``) are used. + + :param indent: + If a positive integer or string, JSON array elements and + object members will be pretty-printed with that indent level. + A positive integer indents that many spaces per level; + a string (such as ``"\t"``) is used to indent each level. + If zero, negative, or ``""`` (the empty string), + only newlines are inserted. + If ``None`` (the default), the most compact representation is used. + :type indent: int | str | None + + :param separators: + A two-tuple: ``(item_separator, key_separator)``. + If ``None`` (the default), *separators* defaults to + ``(', ', ': ')`` if *indent* is ``None``, + and ``(',', ': ')`` otherwise. + For the most compact JSON, + specify ``(',', ':')`` to eliminate whitespace. + :type separators: tuple | None + + :param default: + A function that is called for objects that can't otherwise be serialized. + It should return a JSON encodable version of the object + or raise a :exc:`TypeError`. + If ``None`` (the default), :exc:`!TypeError` is raised. + :type default: :term:`callable` | None + + :param sort_keys: + If ``True``, dictionaries will be outputted sorted by key. + Default ``False``. .. versionchanged:: 3.2 Allow strings for *indent* in addition to integers. - If specified, *separators* should be an ``(item_separator, key_separator)`` - tuple. The default is ``(', ', ': ')`` if *indent* is ``None`` and - ``(',', ': ')`` otherwise. To get the most compact JSON representation, - you should specify ``(',', ':')`` to eliminate whitespace. - .. versionchanged:: 3.4 Use ``(',', ': ')`` as default if *indent* is not ``None``. - If specified, *default* should be a function that gets called for objects that - can't otherwise be serialized. It should return a JSON encodable version of - the object or raise a :exc:`TypeError`. If not specified, :exc:`TypeError` - is raised. - - If *sort_keys* is true (default: ``False``), then the output of - dictionaries will be sorted by key. - - To use a custom :class:`JSONEncoder` subclass (e.g. one that overrides the - :meth:`~JSONEncoder.default` method to serialize additional types), specify it with the - *cls* kwarg; otherwise :class:`JSONEncoder` is used. - .. versionchanged:: 3.6 All optional parameters are now :ref:`keyword-only <keyword-only_parameter>`. - .. note:: - - Unlike :mod:`pickle` and :mod:`marshal`, JSON is not a framed protocol, - so trying to serialize multiple objects with repeated calls to - :func:`dump` using the same *fp* will result in an invalid JSON file. .. function:: dumps(obj, *, skipkeys=False, ensure_ascii=True, \ check_circular=True, allow_nan=True, cls=None, \

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pathlib tests: create `walk()` test hierarchy without using class under test (#128338)
by barneygale Jan. 4, 2025

Jan. 4, 2025

https://github.com/python/cpython/commit/fd94c6a8032676d0659aa9e38cdaa7c170… commit: fd94c6a8032676d0659aa9e38cdaa7c17093119c branch: main author: Barney Gale <barney.gale(a)gmail.com> committer: barneygale <barney.gale(a)gmail.com> date: 2025-01-04T15:45:24Z summary: pathlib tests: create `walk()` test hierarchy without using class under test (#128338) In the tests for `pathlib.Path.walk()`, avoid using the path class under test (`self.cls`) in test setup. Instead we use `os` functions in `test_pathlib`, and direct manipulation of `DummyPath` internal data in `test_pathlib_abc`. files: M Lib/test/test_pathlib/test_pathlib.py M Lib/test/test_pathlib/test_pathlib_abc.py diff --git a/Lib/test/test_pathlib/test_pathlib.py b/Lib/test/test_pathlib/test_pathlib.py index a67a1c531630a1..6548577f4de12c 100644 --- a/Lib/test/test_pathlib/test_pathlib.py +++ b/Lib/test/test_pathlib/test_pathlib.py @@ -3029,6 +3029,42 @@ def setUp(self): if name in _tests_needing_symlinks and not self.can_symlink: self.skipTest('requires symlinks') super().setUp() + + def createTestHierarchy(self): + # Build: + # TESTFN/ + # TEST1/ a file kid and two directory kids + # tmp1 + # SUB1/ a file kid and a directory kid + # tmp2 + # SUB11/ no kids + # SUB2/ a file kid and a dirsymlink kid + # tmp3 + # link/ a symlink to TEST2 + # broken_link + # broken_link2 + # TEST2/ + # tmp4 a lone file + t2_path = self.cls(self.base, "TEST2") + os.makedirs(self.sub11_path) + os.makedirs(self.sub2_path) + os.makedirs(t2_path) + + tmp1_path = self.walk_path / "tmp1" + tmp2_path = self.sub1_path / "tmp2" + tmp3_path = self.sub2_path / "tmp3" + tmp4_path = self.cls(self.base, "TEST2", "tmp4") + for path in tmp1_path, tmp2_path, tmp3_path, tmp4_path: + with open(path, "w", encoding='utf-8') as f: + f.write(f"I'm {path} and proud of it. Blame test_pathlib.\n") + + if self.can_symlink: + broken_link_path = self.sub2_path / "broken_link" + broken_link2_path = self.sub2_path / "broken_link2" + os.symlink(t2_path, self.link_path, target_is_directory=True) + os.symlink('broken', broken_link_path) + os.symlink(os.path.join('tmp3', 'broken'), broken_link2_path) + self.sub2_tree = (self.sub2_path, [], ["broken_link", "broken_link2", "link", "tmp3"]) sub21_path= self.sub2_path / "SUB21" tmp5_path = sub21_path / "tmp3" broken_link3_path = self.sub2_path / "broken_link3" @@ -3052,7 +3088,7 @@ def setUp(self): def tearDown(self): if 'SUB21' in self.sub2_tree[1]: os.chmod(self.sub2_path / "SUB21", stat.S_IRWXU) - super().tearDown() + os_helper.rmtree(self.base) def test_walk_bad_dir(self): errors = [] diff --git a/Lib/test/test_pathlib/test_pathlib_abc.py b/Lib/test/test_pathlib/test_pathlib_abc.py index 0762f224fc9ac4..87aef0c130cf9e 100644 --- a/Lib/test/test_pathlib/test_pathlib_abc.py +++ b/Lib/test/test_pathlib/test_pathlib_abc.py @@ -1580,52 +1580,35 @@ class DummyPathWalkTest(unittest.TestCase): can_symlink = False def setUp(self): - # Build: - # TESTFN/ - # TEST1/ a file kid and two directory kids - # tmp1 - # SUB1/ a file kid and a directory kid - # tmp2 - # SUB11/ no kids - # SUB2/ a file kid and a dirsymlink kid - # tmp3 - # link/ a symlink to TEST2 - # broken_link - # broken_link2 - # TEST2/ - # tmp4 a lone file self.walk_path = self.cls(self.base, "TEST1") self.sub1_path = self.walk_path / "SUB1" self.sub11_path = self.sub1_path / "SUB11" self.sub2_path = self.walk_path / "SUB2" - tmp1_path = self.walk_path / "tmp1" - tmp2_path = self.sub1_path / "tmp2" - tmp3_path = self.sub2_path / "tmp3" self.link_path = self.sub2_path / "link" - t2_path = self.cls(self.base, "TEST2") - tmp4_path = self.cls(self.base, "TEST2", "tmp4") - broken_link_path = self.sub2_path / "broken_link" - broken_link2_path = self.sub2_path / "broken_link2" - - self.sub11_path.mkdir(parents=True) - self.sub2_path.mkdir(parents=True) - t2_path.mkdir(parents=True) - - for path in tmp1_path, tmp2_path, tmp3_path, tmp4_path: - with path.open("w", encoding='utf-8') as f: - f.write(f"I'm {path} and proud of it. Blame test_pathlib.\n") + self.sub2_tree = (self.sub2_path, [], ["tmp3"]) + self.createTestHierarchy() - if self.can_symlink: - self.link_path.symlink_to(t2_path, target_is_directory=True) - broken_link_path.symlink_to('broken') - broken_link2_path.symlink_to(self.cls('tmp3', 'broken')) - self.sub2_tree = (self.sub2_path, [], ["broken_link", "broken_link2", "link", "tmp3"]) - else: - self.sub2_tree = (self.sub2_path, [], ["tmp3"]) + def createTestHierarchy(self): + cls = self.cls + cls._files = { + f'{self.base}/TEST1/tmp1': b'this is tmp1\n', + f'{self.base}/TEST1/SUB1/tmp2': b'this is tmp2\n', + f'{self.base}/TEST1/SUB2/tmp3': b'this is tmp3\n', + f'{self.base}/TEST2/tmp4': b'this is tmp4\n', + } + cls._directories = { + f'{self.base}': {'TEST1', 'TEST2'}, + f'{self.base}/TEST1': {'SUB1', 'SUB2', 'tmp1'}, + f'{self.base}/TEST1/SUB1': {'SUB11', 'tmp2'}, + f'{self.base}/TEST1/SUB1/SUB11': set(), + f'{self.base}/TEST1/SUB2': {'tmp3'}, + f'{self.base}/TEST2': {'tmp4'}, + } def tearDown(self): - base = self.cls(self.base) - base._delete() + cls = self.cls + cls._files.clear() + cls._directories.clear() def test_walk_topdown(self): walker = self.walk_path.walk()

1 0

Docs: mark up json.dump() using parameter list (#128482)
by erlend-aasland Jan. 4, 2025

Jan. 4, 2025

https://github.com/python/cpython/commit/a0088b40bb212dc132e147d04f9287cabd… commit: a0088b40bb212dc132e147d04f9287cabd72d163 branch: main author: Erlend E. Aasland <erlend(a)python.org> committer: erlend-aasland <erlend.aasland(a)protonmail.com> date: 2025-01-04T15:44:34Z summary: Docs: mark up json.dump() using parameter list (#128482) Co-authored-by: Hugo van Kemenade <1324225+hugovk(a)users.noreply.github.com> files: M Doc/library/json.rst diff --git a/Doc/library/json.rst b/Doc/library/json.rst index 758d47462b6e12..f11109fb0ecfed 100644 --- a/Doc/library/json.rst +++ b/Doc/library/json.rst @@ -151,69 +151,91 @@ Basic Usage sort_keys=False, **kw) Serialize *obj* as a JSON formatted stream to *fp* (a ``.write()``-supporting - :term:`file-like object`) using this :ref:`conversion table + :term:`file-like object`) using this :ref:`Python-to-JSON conversion table <py-to-json-table>`. - If *skipkeys* is true (default: ``False``), then dict keys that are not - of a basic type (:class:`str`, :class:`int`, :class:`float`, :class:`bool`, - ``None``) will be skipped instead of raising a :exc:`TypeError`. - - The :mod:`json` module always produces :class:`str` objects, not - :class:`bytes` objects. Therefore, ``fp.write()`` must support :class:`str` - input. - - If *ensure_ascii* is true (the default), the output is guaranteed to - have all incoming non-ASCII characters escaped. If *ensure_ascii* is - false, these characters will be output as-is. + To use a custom :class:`JSONEncoder` subclass (for example, one that overrides the + :meth:`~JSONEncoder.default` method to serialize additional types), specify it with the + *cls* keyword argument; otherwise :class:`JSONEncoder` is used. - If *check_circular* is false (default: ``True``), then the circular - reference check for container types will be skipped and a circular reference - will result in a :exc:`RecursionError` (or worse). + .. note:: - If *allow_nan* is false (default: ``True``), then it will be a - :exc:`ValueError` to serialize out of range :class:`float` values (``nan``, - ``inf``, ``-inf``) in strict compliance of the JSON specification. - If *allow_nan* is true, their JavaScript equivalents (``NaN``, - ``Infinity``, ``-Infinity``) will be used. + Unlike :mod:`pickle` and :mod:`marshal`, JSON is not a framed protocol, + so trying to serialize multiple objects with repeated calls to + :func:`dump` using the same *fp* will result in an invalid JSON file. - If *indent* is a non-negative integer or string, then JSON array elements and - object members will be pretty-printed with that indent level. An indent level - of 0, negative, or ``""`` will only insert newlines. ``None`` (the default) - selects the most compact representation. Using a positive integer indent - indents that many spaces per level. If *indent* is a string (such as ``"\t"``), - that string is used to indent each level. + :param object obj: + The Python object to be serialized. + + :param fp: + The file-like object *obj* will be serialized to. + The :mod:`!json` module always produces :class:`str` objects, + not :class:`bytes` objects, + therefore ``fp.write()`` must support :class:`str` input. + :type fp: :term:`file-like object` + + :param bool skipkeys: + If ``True``, keys that are not of a basic type + (:class:`str`, :class:`int`, :class:`float`, :class:`bool`, ``None``) + will be skipped instead of raising a :exc:`TypeError`. + Default ``False``. + + :param bool ensure_ascii: + If ``True`` (the default), the output is guaranteed to + have all incoming non-ASCII characters escaped. + If ``False``, these characters will be outputted as-is. + + :param bool check_circular: + If ``False``, the circular reference check for container types is skipped + and a circular reference will result in a :exc:`RecursionError` (or worse). + Default ``True``. + + :param bool allow_nan: + If ``False``, serialization of out-of-range :class:`float` values + (``nan``, ``inf``, ``-inf``) will result in a :exc:`ValueError`, + in strict compliance with the JSON specification. + If ``True`` (the default), their JavaScript equivalents + (``NaN``, ``Infinity``, ``-Infinity``) are used. + + :param indent: + If a positive integer or string, JSON array elements and + object members will be pretty-printed with that indent level. + A positive integer indents that many spaces per level; + a string (such as ``"\t"``) is used to indent each level. + If zero, negative, or ``""`` (the empty string), + only newlines are inserted. + If ``None`` (the default), the most compact representation is used. + :type indent: int | str | None + + :param separators: + A two-tuple: ``(item_separator, key_separator)``. + If ``None`` (the default), *separators* defaults to + ``(', ', ': ')`` if *indent* is ``None``, + and ``(',', ': ')`` otherwise. + For the most compact JSON, + specify ``(',', ':')`` to eliminate whitespace. + :type separators: tuple | None + + :param default: + A function that is called for objects that can't otherwise be serialized. + It should return a JSON encodable version of the object + or raise a :exc:`TypeError`. + If ``None`` (the default), :exc:`!TypeError` is raised. + :type default: :term:`callable` | None + + :param sort_keys: + If ``True``, dictionaries will be outputted sorted by key. + Default ``False``. .. versionchanged:: 3.2 Allow strings for *indent* in addition to integers. - If specified, *separators* should be an ``(item_separator, key_separator)`` - tuple. The default is ``(', ', ': ')`` if *indent* is ``None`` and - ``(',', ': ')`` otherwise. To get the most compact JSON representation, - you should specify ``(',', ':')`` to eliminate whitespace. - .. versionchanged:: 3.4 Use ``(',', ': ')`` as default if *indent* is not ``None``. - If specified, *default* should be a function that gets called for objects that - can't otherwise be serialized. It should return a JSON encodable version of - the object or raise a :exc:`TypeError`. If not specified, :exc:`TypeError` - is raised. - - If *sort_keys* is true (default: ``False``), then the output of - dictionaries will be sorted by key. - - To use a custom :class:`JSONEncoder` subclass (e.g. one that overrides the - :meth:`~JSONEncoder.default` method to serialize additional types), specify it with the - *cls* kwarg; otherwise :class:`JSONEncoder` is used. - .. versionchanged:: 3.6 All optional parameters are now :ref:`keyword-only <keyword-only_parameter>`. - .. note:: - - Unlike :mod:`pickle` and :mod:`marshal`, JSON is not a framed protocol, - so trying to serialize multiple objects with repeated calls to - :func:`dump` using the same *fp* will result in an invalid JSON file. .. function:: dumps(obj, *, skipkeys=False, ensure_ascii=True, \ check_circular=True, allow_nan=True, cls=None, \

1 0

GH-127381: pathlib ABCs: remove `PathBase.move()` and `move_into()` (#128337)
by barneygale Jan. 4, 2025

Jan. 4, 2025

https://github.com/python/cpython/commit/95352dcb9321423d0606ae0b01524ad61c… commit: 95352dcb9321423d0606ae0b01524ad61c2c2ec1 branch: main author: Barney Gale <barney.gale(a)gmail.com> committer: barneygale <barney.gale(a)gmail.com> date: 2025-01-04T12:53:51Z summary: GH-127381: pathlib ABCs: remove `PathBase.move()` and `move_into()` (#128337) These methods combine `_delete()` and `copy()`, but `_delete()` isn't part of the public interface, and it's unlikely to be added until the pathlib ABCs are made official, or perhaps even later. files: M Lib/pathlib/_abc.py M Lib/pathlib/_local.py M Lib/test/test_pathlib/test_pathlib.py M Lib/test/test_pathlib/test_pathlib_abc.py diff --git a/Lib/pathlib/_abc.py b/Lib/pathlib/_abc.py index e6ff3fe1187512..7de2bb066f8f99 100644 --- a/Lib/pathlib/_abc.py +++ b/Lib/pathlib/_abc.py @@ -573,30 +573,3 @@ def copy_into(self, target_dir, *, follow_symlinks=True, return self.copy(target, follow_symlinks=follow_symlinks, dirs_exist_ok=dirs_exist_ok, preserve_metadata=preserve_metadata) - - def _delete(self): - """ - Delete this file or directory (including all sub-directories). - """ - raise NotImplementedError - - def move(self, target): - """ - Recursively move this file or directory tree to the given destination. - """ - target = self.copy(target, follow_symlinks=False, preserve_metadata=True) - self._delete() - return target - - def move_into(self, target_dir): - """ - Move this file or directory tree into the given existing directory. - """ - name = self.name - if not name: - raise ValueError(f"{self!r} has an empty name") - elif isinstance(target_dir, PathBase): - target = target_dir / name - else: - target = self.with_segments(target_dir, name) - return self.move(target) diff --git a/Lib/pathlib/_local.py b/Lib/pathlib/_local.py index c5721a69d00470..1da85ddea24376 100644 --- a/Lib/pathlib/_local.py +++ b/Lib/pathlib/_local.py @@ -1128,16 +1128,38 @@ def move(self, target): """ Recursively move this file or directory tree to the given destination. """ - if not isinstance(target, PathBase): - target = self.with_segments(target) - target.copy._ensure_different_file(self) + # Use os.replace() if the target is os.PathLike and on the same FS. try: - return self.replace(target) - except OSError as err: - if err.errno != EXDEV: - raise + target_str = os.fspath(target) + except TypeError: + pass + else: + if not isinstance(target, PathBase): + target = self.with_segments(target_str) + target.copy._ensure_different_file(self) + try: + os.replace(self, target_str) + return target + except OSError as err: + if err.errno != EXDEV: + raise # Fall back to copy+delete. - return PathBase.move(self, target) + target = self.copy(target, follow_symlinks=False, preserve_metadata=True) + self._delete() + return target + + def move_into(self, target_dir): + """ + Move this file or directory tree into the given existing directory. + """ + name = self.name + if not name: + raise ValueError(f"{self!r} has an empty name") + elif isinstance(target_dir, PathBase): + target = target_dir / name + else: + target = self.with_segments(target_dir, name) + return self.move(target) if hasattr(os, "symlink"): def symlink_to(self, target, target_is_directory=False): diff --git a/Lib/test/test_pathlib/test_pathlib.py b/Lib/test/test_pathlib/test_pathlib.py index d13daf8ac8cb07..a67a1c531630a1 100644 --- a/Lib/test/test_pathlib/test_pathlib.py +++ b/Lib/test/test_pathlib/test_pathlib.py @@ -1423,26 +1423,97 @@ def test_move_dangling_symlink(self): self.assertTrue(target.is_symlink()) self.assertEqual(source_readlink, target.readlink()) + def test_move_file(self): + base = self.cls(self.base) + source = base / 'fileA' + source_text = source.read_text() + target = base / 'fileA_moved' + result = source.move(target) + self.assertEqual(result, target) + self.assertFalse(source.exists()) + self.assertTrue(target.exists()) + self.assertEqual(source_text, target.read_text()) + @patch_replace def test_move_file_other_fs(self): self.test_move_file() + def test_move_file_to_file(self): + base = self.cls(self.base) + source = base / 'fileA' + source_text = source.read_text() + target = base / 'dirB' / 'fileB' + result = source.move(target) + self.assertEqual(result, target) + self.assertFalse(source.exists()) + self.assertTrue(target.exists()) + self.assertEqual(source_text, target.read_text()) + @patch_replace def test_move_file_to_file_other_fs(self): self.test_move_file_to_file() + def test_move_file_to_dir(self): + base = self.cls(self.base) + source = base / 'fileA' + target = base / 'dirB' + self.assertRaises(OSError, source.move, target) + @patch_replace def test_move_file_to_dir_other_fs(self): self.test_move_file_to_dir() + def test_move_file_to_itself(self): + base = self.cls(self.base) + source = base / 'fileA' + self.assertRaises(OSError, source.move, source) + + def test_move_dir(self): + base = self.cls(self.base) + source = base / 'dirC' + target = base / 'dirC_moved' + result = source.move(target) + self.assertEqual(result, target) + self.assertFalse(source.exists()) + self.assertTrue(target.is_dir()) + self.assertTrue(target.joinpath('dirD').is_dir()) + self.assertTrue(target.joinpath('dirD', 'fileD').is_file()) + self.assertEqual(target.joinpath('dirD', 'fileD').read_text(), + "this is file D\n") + self.assertTrue(target.joinpath('fileC').is_file()) + self.assertTrue(target.joinpath('fileC').read_text(), + "this is file C\n") + @patch_replace def test_move_dir_other_fs(self): self.test_move_dir() + def test_move_dir_to_dir(self): + base = self.cls(self.base) + source = base / 'dirC' + target = base / 'dirB' + self.assertRaises(OSError, source.move, target) + self.assertTrue(source.exists()) + self.assertTrue(target.exists()) + @patch_replace def test_move_dir_to_dir_other_fs(self): self.test_move_dir_to_dir() + def test_move_dir_to_itself(self): + base = self.cls(self.base) + source = base / 'dirC' + self.assertRaises(OSError, source.move, source) + self.assertTrue(source.exists()) + + def test_move_dir_into_itself(self): + base = self.cls(self.base) + source = base / 'dirC' + target = base / 'dirC' / 'bar' + self.assertRaises(OSError, source.move, target) + self.assertTrue(source.exists()) + self.assertFalse(target.exists()) + @patch_replace def test_move_dir_into_itself_other_fs(self): self.test_move_dir_into_itself() @@ -1472,10 +1543,26 @@ def test_move_dir_symlink_to_itself_other_fs(self): def test_move_dangling_symlink_other_fs(self): self.test_move_dangling_symlink() + def test_move_into(self): + base = self.cls(self.base) + source = base / 'fileA' + source_text = source.read_text() + target_dir = base / 'dirA' + result = source.move_into(target_dir) + self.assertEqual(result, target_dir / 'fileA') + self.assertFalse(source.exists()) + self.assertTrue(result.exists()) + self.assertEqual(source_text, result.read_text()) + @patch_replace def test_move_into_other_os(self): self.test_move_into() + def test_move_into_empty_name(self): + source = self.cls('') + target_dir = self.base + self.assertRaises(ValueError, source.move_into, target_dir) + @patch_replace def test_move_into_empty_name_other_os(self): self.test_move_into_empty_name() @@ -1794,6 +1881,37 @@ def test_rmdir(self): self.assertFileNotFound(p.stat) self.assertFileNotFound(p.unlink) + def test_delete_file(self): + p = self.cls(self.base) / 'fileA' + p._delete() + self.assertFalse(p.exists()) + self.assertFileNotFound(p._delete) + + def test_delete_dir(self): + base = self.cls(self.base) + base.joinpath('dirA')._delete() + self.assertFalse(base.joinpath('dirA').exists()) + self.assertFalse(base.joinpath('dirA', 'linkC').exists( + follow_symlinks=False)) + base.joinpath('dirB')._delete() + self.assertFalse(base.joinpath('dirB').exists()) + self.assertFalse(base.joinpath('dirB', 'fileB').exists()) + self.assertFalse(base.joinpath('dirB', 'linkD').exists( + follow_symlinks=False)) + base.joinpath('dirC')._delete() + self.assertFalse(base.joinpath('dirC').exists()) + self.assertFalse(base.joinpath('dirC', 'dirD').exists()) + self.assertFalse(base.joinpath('dirC', 'dirD', 'fileD').exists()) + self.assertFalse(base.joinpath('dirC', 'fileC').exists()) + self.assertFalse(base.joinpath('dirC', 'novel.txt').exists()) + + def test_delete_missing(self): + tmp = self.cls(self.base, 'delete') + tmp.mkdir() + # filename is guaranteed not to exist + filename = tmp / 'foo' + self.assertRaises(FileNotFoundError, filename._delete) + @needs_symlinks def test_delete_symlink(self): tmp = self.cls(self.base, 'delete') diff --git a/Lib/test/test_pathlib/test_pathlib_abc.py b/Lib/test/test_pathlib/test_pathlib_abc.py index d588442bd11785..0762f224fc9ac4 100644 --- a/Lib/test/test_pathlib/test_pathlib_abc.py +++ b/Lib/test/test_pathlib/test_pathlib_abc.py @@ -1345,93 +1345,6 @@ def test_copy_into_empty_name(self): target_dir = self.base self.assertRaises(ValueError, source.copy_into, target_dir) - def test_move_file(self): - base = self.cls(self.base) - source = base / 'fileA' - source_text = source.read_text() - target = base / 'fileA_moved' - result = source.move(target) - self.assertEqual(result, target) - self.assertFalse(source.exists()) - self.assertTrue(target.exists()) - self.assertEqual(source_text, target.read_text()) - - def test_move_file_to_file(self): - base = self.cls(self.base) - source = base / 'fileA' - source_text = source.read_text() - target = base / 'dirB' / 'fileB' - result = source.move(target) - self.assertEqual(result, target) - self.assertFalse(source.exists()) - self.assertTrue(target.exists()) - self.assertEqual(source_text, target.read_text()) - - def test_move_file_to_dir(self): - base = self.cls(self.base) - source = base / 'fileA' - target = base / 'dirB' - self.assertRaises(OSError, source.move, target) - - def test_move_file_to_itself(self): - base = self.cls(self.base) - source = base / 'fileA' - self.assertRaises(OSError, source.move, source) - - def test_move_dir(self): - base = self.cls(self.base) - source = base / 'dirC' - target = base / 'dirC_moved' - result = source.move(target) - self.assertEqual(result, target) - self.assertFalse(source.exists()) - self.assertTrue(target.is_dir()) - self.assertTrue(target.joinpath('dirD').is_dir()) - self.assertTrue(target.joinpath('dirD', 'fileD').is_file()) - self.assertEqual(target.joinpath('dirD', 'fileD').read_text(), - "this is file D\n") - self.assertTrue(target.joinpath('fileC').is_file()) - self.assertTrue(target.joinpath('fileC').read_text(), - "this is file C\n") - - def test_move_dir_to_dir(self): - base = self.cls(self.base) - source = base / 'dirC' - target = base / 'dirB' - self.assertRaises(OSError, source.move, target) - self.assertTrue(source.exists()) - self.assertTrue(target.exists()) - - def test_move_dir_to_itself(self): - base = self.cls(self.base) - source = base / 'dirC' - self.assertRaises(OSError, source.move, source) - self.assertTrue(source.exists()) - - def test_move_dir_into_itself(self): - base = self.cls(self.base) - source = base / 'dirC' - target = base / 'dirC' / 'bar' - self.assertRaises(OSError, source.move, target) - self.assertTrue(source.exists()) - self.assertFalse(target.exists()) - - def test_move_into(self): - base = self.cls(self.base) - source = base / 'fileA' - source_text = source.read_text() - target_dir = base / 'dirA' - result = source.move_into(target_dir) - self.assertEqual(result, target_dir / 'fileA') - self.assertFalse(source.exists()) - self.assertTrue(result.exists()) - self.assertEqual(source_text, result.read_text()) - - def test_move_into_empty_name(self): - source = self.cls('') - target_dir = self.base - self.assertRaises(ValueError, source.move_into, target_dir) - def test_iterdir(self): P = self.cls p = P(self.base) @@ -1660,37 +1573,6 @@ def test_is_symlink(self): self.assertIs((P / 'linkA\udfff').is_file(), False) self.assertIs((P / 'linkA\x00').is_file(), False) - def test_delete_file(self): - p = self.cls(self.base) / 'fileA' - p._delete() - self.assertFalse(p.exists()) - self.assertFileNotFound(p._delete) - - def test_delete_dir(self): - base = self.cls(self.base) - base.joinpath('dirA')._delete() - self.assertFalse(base.joinpath('dirA').exists()) - self.assertFalse(base.joinpath('dirA', 'linkC').exists( - follow_symlinks=False)) - base.joinpath('dirB')._delete() - self.assertFalse(base.joinpath('dirB').exists()) - self.assertFalse(base.joinpath('dirB', 'fileB').exists()) - self.assertFalse(base.joinpath('dirB', 'linkD').exists( - follow_symlinks=False)) - base.joinpath('dirC')._delete() - self.assertFalse(base.joinpath('dirC').exists()) - self.assertFalse(base.joinpath('dirC', 'dirD').exists()) - self.assertFalse(base.joinpath('dirC', 'dirD', 'fileD').exists()) - self.assertFalse(base.joinpath('dirC', 'fileC').exists()) - self.assertFalse(base.joinpath('dirC', 'novel.txt').exists()) - - def test_delete_missing(self): - tmp = self.cls(self.base, 'delete') - tmp.mkdir() - # filename is guaranteed not to exist - filename = tmp / 'foo' - self.assertRaises(FileNotFoundError, filename._delete) - class DummyPathWalkTest(unittest.TestCase): cls = DummyPath

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