RE: Mysterious xml.sax Encoding Exception
Yes, the characters were from the 0-127 ascii block but encoded as utf-16, so there is a null byte with each nonzero character. I.e., \x00?\x00x\x00m\x00l\x00 Here is something weird I found while experimenting with ElementTree with this same XML string. Consider the same XML as a Python Unicode string, so it is actually encoded as utf-16 and as a string containing utf-16 bytes. That is u'?xml version=1.0 encoding=UTF-16 st' ... or '\xff\xfe\x00?\x00x\x00m\x00l\x00 \x00v\x00e\x00r\x00s\x00i\x00o\x00n\x00=\x00\x001\x00.\x000\x00\x00'... So if these are x and y y = x.encode(utf-16) The actual bytes would be the same, I think, although y is type str and x is type unicode. xml.sax.parseString documentation says parses from a buffer string received as a parameter, so one might imagine that either x or y would be acceptable, and the bytes would be interpreted according to the encoding declaration in the byte stream. And, in fact, both do work with xml.sax.parseString (at least for me). With etree.parse(StringIO.StringIO...) though, only the str form works. Regards, Jon Peck -Original Message- From: Jeroen Ruigrok van der Werven [mailto:[EMAIL PROTECTED] Sent: Saturday, February 02, 2008 12:57 AM To: JKPeck Cc: python-list@python.org Subject: Re: Mysterious xml.sax Encoding Exception -On [20080201 19:06], JKPeck ([EMAIL PROTECTED]) wrote: In both of these cases, there are only plain, 7-bit ascii characters in the xml, and it really is valid utf-16 as far as I can tell. Did you mean to say that the only characters they used in the UTF-16 encoded file are characters from the Basic Latin Unicode block? -- Jeroen Ruigrok van der Werven asmodai(-at-)in-nomine.org / asmodai イェルーン ラウフロック ヴァン デル ウェルヴェン http://www.in-nomine.org/ | http://www.rangaku.org/ We have met the enemy and they are ours... -- http://mail.python.org/mailman/listinfo/python-list
Finding the Process Path
I have Python code running in an application, and I would like to find the full path of the process executable where it is running. I can do this with win32api.GetModuleFileName(0) on Windows, but I would like a solution that uses only standard modules and works cross platform. Any suggestions? TIA. Jon K Peck (Kim) [EMAIL PROTECTED] 312-651-3435 233 S Wacker Dr Chicago, IL 60606 -- http://mail.python.org/mailman/listinfo/python-list
RE: Finding the Process Path
Thanks, but this doesn't tell me what I am looking for. I am looking for the path for the current process (which will not be the Python interpreter). I see, though, that this is available as sys.executable Regards, Jon Peck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of gene tani Sent: Monday, October 03, 2005 7:39 AM To: python-list@python.org Subject: Re: Finding the Process Path other ways to get at info: if sys.hexversion 0x010502F0: sys.versioninfo, version, etc. platform.architecture, processor etc. distutils.sysconfig.get_makefile_filename( ) Benji York wrote: Peck, Jon wrote: I have Python code running in an application, and I would like to find the full path of the process executable where it is running. Like this? import sys sys.executable '/usr/bin/python' -- Benji York -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
RE: Finding the Process Path
Problem solved, but sys.executable seems to be (mostly) what I need. The context here is that my code is embedded in another process, so the Python interpreter is not the process executable, and in fact argv is not set (for various reasons not related to Python.) If I run this code directly through the interpreter, of course Python is what I get from sys.executable. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Steve Holden Sent: Monday, October 03, 2005 9:26 AM To: python-list@python.org Subject: Re: Finding the Process Path Peck, Jon wrote: Thanks, but this doesn't tell me what I am looking for. I am looking for the path for the current process (which will not be the Python interpreter). Actually the core image will be that of the Python interpreter. I see, though, that this is available as sys.executable The interpreter? That's correct. What you probably want is import os, sys print os.path.abspath(sys.argv[0]) this will give you the path to the Python script the interpreter is running. regards Steve -- Steve Holden +44 150 684 7255 +1 800 494 3119 Holden Web LLC www.holdenweb.com PyCon TX 2006 www.python.org/pycon/ -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
NaN Vs None
In choosing a way to represent a value of no information for a float, would it be better to use NaN or None? None has the advantage of standard behavior across platforms, but NaN seems to propagate more easily at least on Windows. For example, NaN+1 = NaN but None+1 raises an exception. Thanks in advance for any advice. Jon K Peck (Kim) [EMAIL PROTECTED] 312-651-3435 233 S Wacker Dr Chicago, IL 60606 -- http://mail.python.org/mailman/listinfo/python-list
