Verifying My Troublesome Linkage Claim between Python and Win7
in [Python]
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From: W. eWatson on 23 Feb 2010 08:03 In the last day, I posted a message titled "What's Going on between Python and win7?" I'd appreciate it if someone could verify my claim. A sample program to do this is below. I'm using IDLE in Win7 with Py 2.5. My claim is that if one creates a program in a folder that reads a file in the folder it and then copies it to another folder, it will read the data file in the first folder, and not a changed file in the new folder. I'd appreciate it if some w7 users could try this, and let me know what they find. My experience is that if one checks the properties of the copied file, it will point to the original py file and execute it and not the copy. # Test program. Examine strange link in Python under Win7 # when copying py file to another folder. # Call the program vefifywin7.py # To verify my situation use IDLE, save and run this program there. # Put this program into a folder along with a data file # called verify.txt. Create a single text line with a few characters in it # Run this program and note if the output # Copy the program and txt file to another folder # Change the contents of the txt file # Run it again, and see if the output is the same as in the other folder track_file = open("verify.txt") aline = track_file.readline(); print aline track_file.close()
From: Rick Dooling on 23 Feb 2010 11:26 No telling what Windows will do. :) I am a mere hobbyist programmer, but I think real programmers will tell you that it is a bad habit to use relative paths. Use absolute paths instead and remove all doubt. http://docs.python.org/library/os.path.html RD
From: W. eWatson on 23 Feb 2010 13:12 On 2/23/2010 8:26 AM, Rick Dooling wrote: > No telling what Windows will do. :) > > I am a mere hobbyist programmer, but I think real programmers will > tell you that it is a bad habit to use relative paths. Use absolute > paths instead and remove all doubt. > > http://docs.python.org/library/os.path.html > > RD You may be right. The actual 300 line program just reads the folder without specifying any path. I'm not that familiar with os path, but have seen it used.
From: Gib Bogle on 23 Feb 2010 14:08 Rick Dooling wrote: > No telling what Windows will do. :) It isn't useful to respond to a serious question with OS bigotry.
From: Gib Bogle on 23 Feb 2010 14:14
W. eWatson wrote: > On 2/23/2010 8:26 AM, Rick Dooling wrote: >> No telling what Windows will do. :) >> >> I am a mere hobbyist programmer, but I think real programmers will >> tell you that it is a bad habit to use relative paths. Use absolute >> paths instead and remove all doubt. >> >> http://docs.python.org/library/os.path.html >> >> RD > You may be right. The actual 300 line program just reads the folder > without specifying any path. I'm not that familiar with os path, but > have seen it used. How do you invoke the program? Do you use a Command Prompt window? |