Python

PATH not known in Windows?

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Join Date: Jan 2007

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Reputation: dams is an unknown quantity at this point

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dams

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Newbie Poster

PATH not known in Windows?

Jan 17th, 2007

Hello,

I am new to Python and find it really nice.
But I can not launch an executable file using only its name. I have to give its whole path. I expected that the PATH environment variable is known by Python and that it could retrieve the full path itself...
I use Windows XP, Python 2.5 and os.spawnl to launch the executable file.
Thanks in advance for your help!

dams

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Join Date: Oct 2004

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Reputation: vegaseat is just really nice

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vegaseat

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Re: PATH not known in Windows?

Jan 17th, 2007

Write a small Python program like the one below and save it as PrintHello.py ...

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 Python Syntax (Toggle Plain Text) 
print "Hello"
 
raw_input("Press Enter to go on ... ")
print "Hello"
 
raw_input("Press Enter to go on ... ")

Now run this program ...

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import subprocess
 
subprocess.call(["Python.exe", "PrintHello.py"])
import subprocess
 
subprocess.call(["Python.exe", "PrintHello.py"])

It seems to find Python.exe without any problems.

May 'the Google' be with you!

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Join Date: Dec 2006

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Reputation: woooee is a jewel in the rough

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woooee

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Re: PATH not known in Windows?

Jan 17th, 2007

This will print your PYTHONPATH. If the path you want is not listed, and it shouldn't be because your program isn't found, then you have to use sys.path.append to add it.

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 Python Syntax (Toggle Plain Text) 
import sys
path_list= sys.path
for eachPath in path_list :
   print eachPath
import sys
path_list= sys.path
for eachPath in path_list :
   print eachPath

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Join Date: Jul 2005

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bumsfeld

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Re: PATH not known in Windows?

Jan 18th, 2007

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Originally Posted by woooee

This will print your PYTHONPATH. If the path you want is not listed, and it shouldn't be because your program isn't found, then you have to use sys.path.append to add it.
Help with Code Tags

Python Syntax (Toggle Plain Text)
import sys
path_list= sys.path
for eachPath in path_list :
   print eachPath
import sys path_list= sys.path for eachPath in path_list : print eachPath