Path? - Python

Dr. Pastor

I installed Python 2.5 on Windows XP.
I got the following system that works well.
---
Python 2.5b3 (r25b3:51041, Aug 3 2006, 09:35:06) [MSC v.1310 32 bit
(Intel)] on
win32 Type "copyright" , "credits" or "license()" for more information.

IDLE 1.2b3

>>import sys
sys.path

['C:\\Python25\\ Lib\\idlelib', 'C:\\WINDOWS\\s ystem32\\python 25.zip',
'C:\\Python25\\ DLLs', 'C:\\Python25\\ lib', 'C:\\Python25\\ lib\\plat-win',
'C:\\Python25\\ lib\\lib-tk', 'C:\\Python25',
'C:\\Python25\\ lib\\site-packages',
'C:\\Python25\\ lib\\site-packages\\wx-2.6-msw-ansi']

>>>

---
Question: How did I end up with the second item in path?
Is that a zip file?
There is no such a file in system32.
What would be the correct way to set path to assist the search?
Thanks for any advice.

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Sep 6 '06 #1

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1538

Steve Holden

Dr. Pastor wrote:

I installed Python 2.5 on Windows XP.
I got the following system that works well.
---
Python 2.5b3 (r25b3:51041, Aug 3 2006, 09:35:06) [MSC v.1310 32 bit
(Intel)] on
win32 Type "copyright" , "credits" or "license()" for more information.

IDLE 1.2b3

>>import sys
>>sys.path

['C:\\Python25\\ Lib\\idlelib', 'C:\\WINDOWS\\s ystem32\\python 25.zip',
'C:\\Python25\\ DLLs', 'C:\\Python25\\ lib', 'C:\\Python25\\ lib\\plat-win',
'C:\\Python25\\ lib\\lib-tk', 'C:\\Python25',
'C:\\Python25\\ lib\\site-packages',
'C:\\Python25\\ lib\\site-packages\\wx-2.6-msw-ansi']

>>>

---
Question: How did I end up with the second item in path?

That was added as a part of the interpreter's initialisation.

Is that a zip file?

Well, it would be ...

There is no such a file in system32.

.... if it existed! Python has been capable of importing from zip files
for quite a while.

What would be the correct way to set path to assist the search?

Well, that depends. If you want your modules to take precedence over
similarly-named modules in the standard library (which can be risky if
unexpected name clashes occur) then use

sys.path.insert (0, path)

where "path" holds the path of your choice. If you want to search other
directories once the standard list has been exhausted then you should use

sys.path.append (path)

regards
Steve
--
Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC/Ltd http://www.holdenweb.com
Skype: holdenweb http://holdenweb.blogspot.com
Recent Ramblings http://del.icio.us/steve.holden

Sep 7 '06 #2

Dr. Pastor

Many thanks, Sir.

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Sep 7 '06 #3

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