[issue44159] mimetypes - "strict" on Windows

[Norman Lorrain]

New submission from Norman Lorrain :

On Windows 10 machine, unit tests show this error:

0:05:10 load avg: 3.24 [221/427/1] test_mimetypes failed
test test_mimetypes failed -- Traceback (most recent call last):
File "D:\github\cpython\lib\test\test_mimetypes.py", line 289, in 
test_guess_type
eq(type_info, "I don't know anything about type foo.pic")
AssertionError: 'type: image/pict encoding: None' != "I don't know anything 
about type foo.pic"
- type: image/pict encoding: None
+ I don't know anything about type foo.pic

The test is verifying that the code reports `image/pict` as a *non-standard* 
MIME type:

def test_guess_type(self):
eq = self.assertEqual

type_info = self.mimetypes_cmd("-l", "foo.pic")
eq(type_info, "type: image/pict encoding: None")

type_info = self.mimetypes_cmd("foo.pic")
eq(type_info, "I don't know anything about type foo.pic")

Looking in my registry, I see the entry for `.pic`

[HKEY_CLASSES_ROOT\.pic]
@="QuickTime.pic"
"Content Type"="image/pict"
...etc

The module seems to report everything it finds in the registry as "strict"

--
components: Library (Lib)
messages: 393826
nosy: Norman Lorrain
priority: normal
severity: normal
status: open
title: mimetypes -  "strict" on Windows
type: behavior
versions: Python 3.11

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[issue44159] mimetypes - "strict" on Windows

[Norman Lorrain]

Norman Lorrain  added the comment:

Possible solution is to read the Windows Registry entries, assigning those 
entries as "strict=False".  Unit tests pass with this change:

diff --git a/Lib/mimetypes.py b/Lib/mimetypes.py
index 018793c4f0..dd2bddf064 100644
--- a/Lib/mimetypes.py
+++ b/Lib/mimetypes.py
@@ -350,7 +350,7 @@ def init(files=None):
 if files is None or _db is None:
 db = MimeTypes()
 if _winreg:
-db.read_windows_registry()
+db.read_windows_registry(strict = False)
 
 if files is None:
 files = knownfiles

--

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[issue12403] Mention sys.displayhook in code module docs and the compile builtin docs

[Norman Lorrain]

Change by Norman Lorrain :


--
keywords: +patch
nosy: +Norman Lorrain
nosy_count: 7.0 -> 8.0
pull_requests: +24834
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/26217

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[issue28661] Fix code example in Python 3.5 telnetlib documentation

[Norman Lorrain]

Norman Lorrain  added the comment:

How about a simpler example (this relies on an outside service, fwiw)

See attached file.

--
nosy: +Norman Lorrain
Added file: https://bugs.python.org/file50124/weather.py

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[issue38825] shutil.disk_usage - Lacking documentation

[Norman Lorrain]

Norman Lorrain  added the comment:

This issue is a bit dated, but here goes: 

   On Unix, the function `statvfs()` is called. `path` should be a path on a 
mounted filesystem (it should not be a device).

   On Windows, the function `GetDiskFreeSpaceExW()` is called. `path` is any 
directory on a disk volume.


Looking through the rest of the page, no other functions get into such 
specifics; maybe this is outside the scope of the document. Maybe the issue 
should be closed.

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[issue38825] shutil.disk_usage - Lacking documentation

[Norman Lorrain]

Norman Lorrain  added the comment:

Something like this:

   .. impl-detail::
  Where applicable (e.g. Unix) *path* must point to somewhere on a
**mounted** filesystem partition.

On Sun, 11 Jul 2021 at 16:18, Tyler Crompton  wrote:

>
> Tyler Crompton  added the comment:
>
> Not even the kernel knows how much space is available on a nonmounted
> partition. It doesn't know much beyond the fact that it exists and where it
> exists. There exist tools that can analyze nonmounted partitions, but these
> will vary by filesystem and operating system. If someone wants to implement
> solutions for the most common filesystem-OS combinations, then that might
> be helpful.
>
> But considering that no one has done that or even asked for it yet, I'm
> not sure that doing so is worth the effort. So I agree that documenting it
> is the best approach. It should be documented such that the limitations are
> mentioned, not necessarily how it's implemented. If explaining which system
> calls are used helps explain the limitations, then so be it. Additionally,
> as far as I'm concerned, there's no reason to restrict other Python
> implementations from implementing functionality for nonmounted disks. So
> the limitations should be described as being CPython-specific, akin to what
> is done for `readline.set_auto_history`.
>
> --
> nosy: +tylercrompton
>
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