On Thu, Jun 14, 2007, Rolando Pereira wrote: >[EMAIL PROTECTED] escreveu: >> Okay, I guess, people are missing points here. >> >> When do you >> >> #!/usr/local/bin/python >> You are specifying the location to the python executable in your machine, >> that rest of the script needs to be interpreted with. >> You are pointing to python is located at /usr/local/bin/python >> >> Consider the possiblities that in a different machine, python may be >> installed at /usr/bin/python or /bin/python in those cases, the above #! >> will fail. >> For those cases, we get to call the env executable with argument which will >> determine the arguments path by searching in the $PATH and use it correctly. >> >> Thus, >> #/usr/bin/env python >> Will figure out the correct location of python ( /usr/bin/python or >> /bin/python from $PATH) and make that as the interpreter for rest of the >> script. >> - ( env is almost always located in /usr/bin/ so one need not worry what is >> env is not present at /usr/bin) >> ... >I've always used #!/usr/bin/python... > >Perhaps I should use the "#!/usr/bin/env python" one.
The case where ``#!/usr/bin/env python'' won't work is where there are multiple versions of python on the system, and one wants to run a version that's not first in the PATH. In that case one needs to put the full path to the proper executable. Bill -- INTERNET: [EMAIL PROTECTED] Bill Campbell; Celestial Software LLC URL: http://www.celestial.com/ PO Box 820; 6641 E. Mercer Way FAX: (206) 232-9186 Mercer Island, WA 98040-0820; (206) 236-1676 ``The trouble with fighting for human freedom is that one spends most of one's time defending scoundrels. For it is against scoundrels that oppressive laws are first aimed, and oppression must be stopped at the beginning if it is to be stopped at all.'' -- H. L. Mencken _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
