HTTP GET Explodes...

[John Machin]

Pete wrote:
> I was running the HTTP GET example at
> http://www.python.org/doc/current/lib/httplib-examples.html and ran
> into a bit of trouble...
>
> >>> import httplib  # This works.
> >>> conn = httplib.HTTPConnection("www.python.org")  # This works.
> >>> conn.request("GET", "/index.html")  # This does not work...
>
> The errors I get are below. Any suggestions on how to get rid of the
> errors? Thanks!

You have *ONE* error, with a long traceback, which is incomplete,
because it doesn't show the error message that should be at the end of
the traceback.

>
> # Begin errors...
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
>   File "/usr/lib/python2.4/httplib.py", line 801, in request
>     self._send_request(method, url, body, headers)
>   File "/usr/lib/python2.4/httplib.py", line 818, in _send_request
>     self.putrequest(method, url, **skips)
>   File "/usr/lib/python2.4/httplib.py", line 749, in putrequest
>     self.putheader('Host', self.host.encode("idna"))
>   File "/usr/lib/python2.4/encodings/__init__.py", line 96, in
> search_function
>     globals(), locals(), _import_tail)
>   File "/usr/lib/python2.4/encodings/idna.py", line 6, in ?
>     dots = re.compile(u"[\u002E\u3002\uFF0E\uFF61]")

This is compiling a *constant* regular expression, and works OK on the
Windows distribution of Python 2.4.3 :

| Python 2.4.3 (#69, Mar 29 2006, 17:35:34) [MSC v.1310 32 bit (Intel)]
on win32
| Type "help", "copyright", "credits" or "license" for more
information.
| >>> import re
| >>> dots = re.compile(u"[\u002E\u3002\uFF0E\uFF61]")
| >>> dots.match('.')
| <_sre.SRE_Match object at 0x00AF6058> # bonus: compiled regex works.
| >>> dots.match(u'\uff61')
| <_sre.SRE_Match object at 0x00AF6918>

You appear to be running 2.4.n; what is n, and exactly which *x
platform are you running it on? Perhaps a file in /usr/lib/python2.4 is
corrupt, but we won't know until you give the *full* traceback. Do you
get the same results when you try what I did at the interpreter
interactive prompt?

>   File "/usr/lib/python2.4/sre.py", line 180, in compile
>     return _compile(pattern, flags)
>   File "/usr/lib/python2.4/sre.py", line 225, in _compile
>     p = sre_compile.compile(pattern, flags)
>   File "/usr/lib/python2.4/sre_compile.py", line 500, in compile
>     code = _code(p, flags)
>   File "/usr/lib/python2.4/sre_compile.py", line 481, in _code
>     _compile_info(code, p, flags)
>   File "/usr/lib/python2.4/sre_compile.py", line 459, in _compile_info
>     _compile_charset(charset, flags, code)
>   File "/usr/lib/python2.4/sre_compile.py", line 178, in
> _compile_charset
>     for op, av in _optimize_charset(charset, fixup):
>   File "/usr/lib/python2.4/sre_compile.py", line 221, in
> _optimize_charset
>     return _optimize_unicode(charset, fixup)
>   File "/usr/lib/python2.4/sre_compile.py", line 341, in
> _optimize_unicode
>     mapping = array.array('b', mapping).tostring()

... to be continued in the next episode.

Regards,
John