On Thursday, 11 October 2012 18:44:44 UTC+5:30, Chris Angelico wrote:
> On Thu, Oct 11, 2012 at 11:16 PM, D'Arcy J.M. Cain <da...@druid.net> wrote:
>
> > On Thu, 11 Oct 2012 13:24:22 +0200
>
> > Gisle Vanem <gva...@broadpark.no> wrote:
>
> >
>
> >> Hello list. I'm a newbie when it comes to Python.
>
> >>
>
> >> I'm trying to turn this:
>
> >>
>
> >> def print_sys_path():
>
> >> i = 0
>
> >> for p in sys.path:
>
> >> print ('sys.path[%2d]: %s' % (i, p))
>
> >> i += 1
>
> >>
>
> >> into a one-line python command (in a .bat file):
>
> >
>
> > Is "one liner" an actual requirement or is the requirement to run it
>
> > from the command line?
>
> >
>
> > python -c "
>
> > import sys
>
> > i = 0
>
> > for p in sys.path:
>
> > print('sys.path[%2d]: %s' % (i, p))
>
> > i+=1
>
> > "
>
> >
>
> > I don't know if this works on Windows or not.
>
>
>
> It doesn't, I just tested it. Windows batch is appallingly crude
>
> compared to a modern Unix shell; you may be able to find a way to get
>
> around this, but the easiest solution for most batch files is going to
>
> be an actual Python script file. You may be able to overlay your batch
>
> and Python scripts with a trick like this:
>
>
>
> rem = '''
>
> @echo off
>
> echo This is batch
>
> \python32\python %0
>
> echo All done
>
> exit /b
>
> rem '''
>
> import sys
>
> print("This is Python")
>
> for i,p in enumerate(sys.path):
>
> print('sys.path[%2d]: %s' % (i, p))
>
> print("Python done")
>
>
>
> You'll have a variable in Python called 'rem' which contains all your
>
> batch code :) It exploits the fact that 'rem' makes a one-line
>
> comment, but the triple quotes go across multiple lines. (The "exit
>
> /b" should exit the batch script without closing cmd.exe - this is yet
>
> another weird WEIRD wart in Windows batch. I'm pretty sure neither DOS
>
> nor OS/2 batch required that parameter.)
>
>
>
> ChrisA
What about the "Power" in PowerShell?
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