[Tutor] UnicodeEncodeError

[gpo]

I'm doing a simple excercise in reading a file, and printing each line. 
However, I'm getting this error.  The file is a windows txt file, ecoded in
ANSI(ascii).  I don't understand why Pythin is displaying a Unicode error.  

Here is my script:

f=open('I:\\PythonScripts\\statement.txt')
for line in f:
print (line)
f.close()

statement.txt is just a copy of the text from an article at
(http://www.tgdaily.com/content/view/43296/98/) into notepad.

The error I get is:

Traceback (most recent call last):
  File "I:\PythonScripts\fileloop.py", line 9, in 
print (line)
  File "C:\Python31\lib\encodings\cp437.py", line 19, in encode
return codecs.charmap_encode(input,self.errors,encoding_map)[0]
UnicodeEncodeError: 'charmap' codec can't encode character '\u2014' in
position
10: character maps to 

I've looked this up, and see that others have had a similar error; however,
I don't see any thing saying what I should be encoding to/from since my
input and output files are both ascii. 
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[Tutor] Issues with regex escaping on \{

[gpo]

My regex is being run in both Python v2.6 and v3.1
For this example, I'll give one line.  This lines will be read out of log
files.  I'm trying to get the GUID for the User ID to query a database with
it, so I'd like a sub match.  Here is the code
-
import re
line = '>Checking Privilege for UserId:
{88F96ED2-D471-DE11-95B6-0050569E7C88}, PrivilegeId:
{71AD2527-8494-4654-968D-FE61E9A6A9DF}. Returned hr = 0'
pUserID=re.compile('UserID: \{(.+)\}',re.I)  #Sub match is one or more
characters between the first set of squigglies immediately following
'UserID: '

#the output is:
(re.search(pUserID,line)).group(1)
'88F96ED2-D471-DE11-95B6-0050569E7C88}, PrivilegeId:
{71AD2527-8494-4654-968D-FE61E9A6A9DF'
---
Why isn't the match terminating after it finds the first \}  ?
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Re: [Tutor] Issues with regex escaping on \{

[gpo]

Thanks!  The ? got rid of the greediness! 


vince spicer wrote:
> 
> On Wed, Jul 29, 2009 at 11:35 AM, gpo  wrote:
> 
> 
> your grouping (.+) appears to be greedy, you can make it non-greedy with a
> question mark
> 
> EX:
> 
> pUserID=re.compile('UserID:\s+{(.+?)}',re.I)
> 
> Vince
> 
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[Tutor] New Issues with REGEX Greediness:

[gpo]

Thanks for the replies in the last thread.  I'm still trying to figure out
how Python is handling RegEx.  I'm converting my thoughts from Perl (the
mother of regex) to Python, and expect the same results.  Why are they
different?

Perl:
$line='>Checking Privilege for UserId:
{874BE70A-194B-DE11-BE5C-000C297901A5}, PrivilegeId: {prvReadSdkMessage}.
Returned hr = 0'
$line=~/(\w+)\:.+.{8}-.{4}-.{4}-.{4}-.{12}/;
print "$1"
RESULT:
UserId

This is the result I want.  I'm trying to get the name's of GUID's from log
files.

Python:
line='>Checking Privilege for UserId:
{874BE70A-194B-DE11-BE5C-000C297901A5}, PrivilegeId: {prvReadSdkMessage}.
Returned hr = 0'
(re.search('(\w+)\:.+.{8}-.{4}-.{4}-.{4}-.{12}',line)).group(0)
RESULT
'UserId: {874BE70A-194B-DE11-BE5C-000C297901A5'

How/Why are these results different?  What is Python doing differently in
regex, that I need to adjust to?  
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