Should stdlib files contain 'narrow non breaking space' U+202F?

[Serhiy Storchaka]

On 18.12.15 08:51, Chris Angelico wrote:
> On Fri, Dec 18, 2015 at 5:36 PM, Terry Reedy <tjreedy at udel.edu> wrote:
>> Last I knew, Guido still wanted stdlib files to be all-ascii, especially
>> possibly in special cases. There is no good reason I can think of for there
>> to be an invisible non-ascii space in a comment.  It strikes me as most
>> likely an accident (typo) that should be fixed.  I suspect the same of most
>> of the following.  Perhaps you should file an issue (and patch?) on the
>> tracker.
>
> You're probably right on that one. Here's others - and the script I
> used to find them.
>
> import os
> for root, dirs, files in os.walk("."):
>      if "test" in root: continue
>      for fn in files:
>          if not fn.endswith(".py"): continue
>          if "test" in fn: continue
>          with open(os.path.join(root,fn),"rb") as f:
>              for l,line in enumerate(f):
>                  try:
>                      line.decode("ascii")
>                      continue # Ignore the ASCII lines
>                  except UnicodeDecodeError:
>                      line = line.rstrip(b"\n")
>                      try: line = line.decode("UTF-8")
>                      except UnicodeDecodeError: line = repr(line) # If
> it's not UTF-8 either, show it as b'...'
>                      print("%s:%d: %s" % (fn,l,line))
>
>
> shlex.py:37:             self.wordchars += ('ßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿ'
> shlex.py:38:                                'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ')
> functools.py:7: # and Łukasz Langa <lukasz at langa.pl>.
> heapq.py:34: [explanation by François Pinard]
> getopt.py:21: # Peter Åstrand <astrand at lysator.liu.se> added gnu_getopt().
> sre_compile.py:26:     (0x69, 0x131), # iı
> sre_compile.py:28:     (0x73, 0x17f), # sſ
> sre_compile.py:30:     (0xb5, 0x3bc), # µμ
> sre_compile.py:32:     (0x345, 0x3b9, 0x1fbe), # \u0345ιι
> sre_compile.py:34:     (0x390, 0x1fd3), # ΐΐ
> sre_compile.py:36:     (0x3b0, 0x1fe3), # ΰΰ
> sre_compile.py:38:     (0x3b2, 0x3d0), # βϐ
> sre_compile.py:40:     (0x3b5, 0x3f5), # εϵ
> sre_compile.py:42:     (0x3b8, 0x3d1), # θϑ
> sre_compile.py:44:     (0x3ba, 0x3f0), # κϰ
> sre_compile.py:46:     (0x3c0, 0x3d6), # πϖ
> sre_compile.py:48:     (0x3c1, 0x3f1), # ρϱ
> sre_compile.py:50:     (0x3c2, 0x3c3), # ςσ
> sre_compile.py:52:     (0x3c6, 0x3d5), # φϕ
> sre_compile.py:54:     (0x1e61, 0x1e9b), # ṡẛ
> sre_compile.py:56:     (0xfb05, 0xfb06), # ſtst
> punycode.py:2: Written by Martin v. Löwis.
> koi8_t.py:2: # http://ru.wikipedia.org/wiki/КОИ-8
> __init__.py:0: # Copyright (C) 2005 Martin v. Löwis
> client.py:737:         a Date representing the file’s last-modified time, a
> client.py:739:         containing a guess at the file’s type. See also the
> bdist_msi.py:0: # Copyright (C) 2005, 2006 Martin von Löwis
> connection.py:399:             # Issue # 20540: concatenate before
> sending, to avoid delays due
> message.py:531:                        filename=('utf-8', '', Fußballer.ppt'))
> message.py:533:                        filename='Fußballer.ppt'))
> request.py:181:     * geturl() — return the URL of the resource
> retrieved, commonly used to
> request.py:184:     * info() — return the meta-information of the
> page, such as headers, in the
> request.py:188:     * getcode() – return the HTTP status code of the
> response.  Raises URLError
> dbapi2.py:2: # Copyright (C) 2004-2005 Gerhard Häring <gh at ghaering.de>
> __init__.py:2: # Copyright (C) 2005 Gerhard Häring <gh at ghaering.de>
>
> They're nearly all comments. A few string literals.
>
> I would be inclined to ASCIIfy the apostrophes, dashes, and the
> connection.py space that started this thread. People's names, URLs,
> and demonstrative characters I'm more inclined to leave. Agreed?

Agreed. Please open an issue.

Using non-ASCII apostrophes and like in docstrings may be considered a bug.