[ python-Bugs-808719 ] IDLE and encodings

Thu Aug 12 15:17:35 CEST 2004

Bugs item #808719, was opened at 2003-09-18 19:08
Message generated for change (Comment added) made by loewis
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=808719&group_id=5470

Category: IDLE
Group: Python 2.3
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Matthew Cowles (mdcowles)
Assigned to: Martin v. Löwis (loewis)
Summary: IDLE and encodings

Initial Comment:
A person from Belgium reported this problem in IDLE to 
python-help:

$ python  idle
Traceback (most recent call last):
  File &quot;idle&quot;, line 10, in ?
    import PyShell
  File &quot;PyShell.py&quot;, line 25, in ?
    from EditorWindow import EditorWindow, fixwordbreaks
  File &quot;EditorWindow.py&quot;, line 39, in ?
    class EditorWindow:
  File &quot;EditorWindow.py&quot;, line 43, in EditorWindow
    from IOBinding import IOBinding
  File &quot;IOBinding.py&quot;, line 54, in ?
    codecs.lookup(encoding)
  File
&quot;/ap/tools/storage/python/v2.2.2.224_ap/lib/python2.2/
encodings/__init__.py&quot;,

line 51, in search_function
    mod = __import__(modname,globals(),locals(),'*')
ValueError: Empty module name

It seems that checking for an encoding of &quot;&quot; as well as None 
in IOBinding.py fixes the problem. I'll attach his small patch.

----------------------------------------------------------------------

>Comment By: Martin v. Löwis (loewis)
Date: 2004-08-12 15:17

Message:
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Committed as IOBinding.py 1.24 and 1.19.8.4, NEWS 1.831.4.137.

----------------------------------------------------------------------

Comment By: Martin v. Löwis (loewis)
Date: 2004-08-11 07:03

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Looks fine. One day, IDLE should switch to
locale.getpreferredencoding, though.

----------------------------------------------------------------------

Comment By: Kurt B. Kaiser (kbk)
Date: 2004-08-11 04:19

Message:
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Martin, do you see any problem if I apply this
patch to IDLE?

----------------------------------------------------------------------

Comment By: Matthew Cowles (mdcowles)
Date: 2003-09-19 19:22

Message:
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The original poster to python-help replies:

SYSTEM: SunOS indsv07 5.6 Generic_105181-19 sun4u sparc 
SUNW,Ultra-2

????????????????Python2.2???????????????????????????????????????
????????????
&gt;&gt;&gt; locale.getpreferredencoding
Traceback (most recent call last):
  File &quot;&lt;stdin&gt;&quot;, line 1, in ?
AttributeError: 'module' object has no attribute 
'getpreferredencoding'
&gt;&gt;&gt; locale.getpreferredencoding()
Traceback (most recent call last):
  File &quot;&lt;stdin&gt;&quot;, line 1, in ?
AttributeError: 'module' object has no attribute 
'getpreferredencoding'
&gt;&gt;&gt;
????????????????????????????????????????????????????????????????
??????

ActivePython 2.2.2 Build 224 (ActiveState Corp.) based on
Python 2.2.2 (#1, Nov 26 2002, 10:37:00)
[GCC 2.95.2 19991024 (release)] on sunos5
Type &quot;help&quot;, &quot;copyright&quot;, &quot;credits&quot; or &quot;license&quot; for more 
information.
&gt;&gt;&gt;
&gt;&gt;&gt; locale._print_locale()
&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;
&lt;&lt;&lt;&lt;&lt;&lt;
Locale defaults as determined by getdefaultlocale():
------------------------------------------------------------------------
Language:  (undefined)
Encoding:  (undefined)

Locale settings on startup:
------------------------------------------------------------------------
LC_NUMERIC ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_MESSAGES ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_MONETARY ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_COLLATE ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_CTYPE ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_TIME ...
   Language:  (undefined)
   Encoding:  (undefined)

Locale settings after calling resetlocale():
------------------------------------------------------------------------
LC_NUMERIC ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_MESSAGES ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_MONETARY ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_COLLATE ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_CTYPE ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_TIME ...
   Language:  (undefined)
   Encoding:  (undefined)

Locale settings after calling setlocale(LC_ALL, &quot;&quot;):
------------------------------------------------------------------------
C_NUMERIC ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_MESSAGES ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_MONETARY ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_COLLATE ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_CTYPE ...
   Language:  (undefined)
   Encoding:  (undefined)

LC_TIME ...
   Language:  (undefined)
   Encoding:  (undefined)

&gt;&gt;&gt;
&gt;&gt;&gt; locale._test()
&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;
123456789 is 123456789
3.14 is 3.14
&gt;&gt;&gt; locale.getlocale()
&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;
(None, None)
&gt;&gt;&gt; locale.getdefaultlocale()
&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;
(None, None)
&gt;&gt;&gt;
&gt;&gt;&gt; locale.CODESET
&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;
49

&gt;&gt;&gt; locale.localeconv()
&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;
{'mon_decimal_point': '', 'int_frac_digits': 127, 'p_sep_by_space': 
127,
'frac_digits': 127, 'thousands_sep': '', 'n_sign_posn': 127,
'decimal_point': '.', 'mon_thousands_sep': '', 'n_cs_precedes': 127,
'p_sign_posn': 127, 'int_curr_symbol': '', 'negative_sign': '',
'currency_symbol': '', 'n_sep_by_space': 127, 'mon_grouping': [],
'p_cs_precedes': 127, 'positive_sign': '', 'grouping': []}
&gt;&gt;&gt;

&gt;&gt;&gt; locale.getdefaultlocale()
&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;
&lt;
(None, None)

=========================================
=========================================
======
!!!!!!!!!!!!!!!!!!!!!!  Unofficial install of 2.3 (same system)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
=========================================
=========================================
======
Python 2.3 (#1, Jul 31 2003, 09:16:42)
[GCC 2.95.3 20010315 (release)] on sunos5
Type &quot;help&quot;, &quot;copyright&quot;, &quot;credits&quot; or &quot;license&quot; for more 
information.
&gt;&gt;&gt;
&gt;&gt;&gt; import locale
&gt;&gt;&gt; locale.getpreferredencoding()
''
&gt;&gt;&gt;

############# Here, I have done the same modifications in
&quot;idlelib...IObinding.py&quot; but for Python 2.3 and I succeed in 
launching IDLE
######################

Python 2.3 (#1, Jul 31 2003, 09:16:42)
[GCC 2.95.3 20010315 (release)] on sunos5
Type &quot;copyright&quot;, &quot;credits&quot; or &quot;license()&quot; for more information.

********************************************************
********
    Personal firewall software may warn about the connection IDLE
    makes to its subprocess using this computer's internal loopback
    interface.  This connection is not visible on any external
    interface and no data is sent to or received from the Internet.

********************************************************
********

IDLE 1.0
&gt;&gt;&gt;

&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;
&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;
&gt;&gt;&gt;&gt;

One last remark, last time I remenber that the problem of codec 
lookup also
appeared in other circumstances than starting IDLE.

----------------------------------------------------------------------

Comment By: Martin v. Löwis (loewis)
Date: 2003-09-18 20:05

Message:
Logged In: YES 
user_id=21627

Can you report what operating system this was on, and what
locale setting was in place?

What is the value of locale.getpreferredencoding on that system?

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=808719&group_id=5470