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Re: [PATCH 1/2] docs: kernel-doc comments are ASCII

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On Thu, 31 Aug 2017, Jani Nikula <jani.nikula@linux.intel.com> wrote:
> On Thu, 31 Aug 2017, Randy Dunlap <rdunlap@infradead.org> wrote:
>> On 08/31/17 07:17, Jonathan Corbet wrote:
>>> On Thu, 31 Aug 2017 10:56:26 -0300
>>> Mauro Carvalho Chehab <mchehab@s-opensource.com> wrote:
>>> 
>>>> It should have something to do with python version and/or to some
>>>> locale info at the system, as neither I or Jon can reproduce it.
>>> 
>>> I can't reproduce it here, but I have certainly seen situations where
>>> Python 2 wants to run with the ascii codec by default.
>>> 
>>> Note that the exception happens in our Sphinx extension, not in Sphinx
>>> itself.  We've had other non-ascii text in our docs, so I think Sphinx is
>>> doing the right thing.  The problem is with our own code.  If I could
>>> reproduce it, it shouldn't be too hard to track down - take out that
>>> massive "except anything" block and see where it explodes.
>>> 
>>> Randy, which distribution are you running, and are you using their version
>>> of Sphinx?
>>
>> opensuse LEAP 42.2
>> Yes, their sphinx 1.3.1.
>
> What's your LANG setting? I think that's what it boils down to, and
> trying to work around non-UTF-8 LANG in both python 2 and 3 compatible
> ways.
>
> The odd thing is that I can reproduce the issue using a small python
> snippet, but not through Sphinx.

Your original error message suggests your Sphinx actually uses python
3. Can you check that? The clue is that it's the *decode* that fails.

Does the below patch help? It avoids the implicit ascii decoding due to
universal_newlines=True and your LANG setting, and does explicit utf-8
decoding instead.

Fingers crossed.

BR,
Jani.


diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index d15e07f36881..39aa9e8697cc 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -27,6 +27,7 @@
 # Please make sure this works on both python2 and python3.
 #
 
+import codecs
 import os
 import subprocess
 import sys
@@ -88,13 +89,10 @@ class KernelDocDirective(Directive):
         try:
             env.app.verbose('calling kernel-doc \'%s\'' % (" ".join(cmd)))
 
-            p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
+            p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
             out, err = p.communicate()
 
-            # python2 needs conversion to unicode.
-            # python3 with universal_newlines=True returns strings.
-            if sys.version_info.major < 3:
-                out, err = unicode(out, 'utf-8'), unicode(err, 'utf-8')
+            out, err = codecs.decode(out, 'utf-8'), codecs.decode(err, 'utf-8')
 
             if p.returncode != 0:
                 sys.stderr.write(err)



-- 
Jani Nikula, Intel Open Source Technology Center

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[PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-29 01:20 +0200
  Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Jonathan Corbet <corbet@lwn.net> - 2017-08-30 23:30 +0200
    Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-31 00:10 +0200
      Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-08-31 00:20 +0200
        Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Jonathan Corbet <corbet@lwn.net> - 2017-08-31 00:40 +0200
          Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-31 01:10 +0200
            Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-31 01:10 +0200
              Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-31 01:20 +0200
      Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-08-31 12:00 +0200
        Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Jani Nikula <jani.nikula@linux.intel.com> - 2017-08-31 15:30 +0200
          Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Mauro Carvalho Chehab <mchehab@s-opensource.com> - 2017-08-31 16:00 +0200
            Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Jonathan Corbet <corbet@lwn.net> - 2017-08-31 16:20 +0200
              Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-31 17:50 +0200
                Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Jani Nikula <jani.nikula@linux.intel.com> - 2017-08-31 18:10 +0200
                Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-31 18:30 +0200
                Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Jani Nikula <jani.nikula@linux.intel.com> - 2017-08-31 18:40 +0200
                Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-31 19:40 +0200
                Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-31 20:00 +0200
                Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Jani Nikula <jani.nikula@linux.intel.com> - 2017-08-31 20:00 +0200
                Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-31 20:10 +0200
        Re: [PATCH 1/2] docs: kernel-doc comments are ASCII Randy Dunlap <rdunlap@infradead.org> - 2017-08-31 18:00 +0200

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