If it's a executable file, a ".exe" file, you can launch it in this
way, "xxx.exe < input.txt". The text file "input.txt" will be
considered as the standard input.

But when I use this trick on python, it doesn't work. The only way to
do so is like this "python xxx.py < input.txt". But this method has a
problem, that you have to include the full path of "xxx.py" unless
it's in your current folder even if "xxx.py" is in a folder which has
been include in the eviorment variable "path" on windows. Thus, you
can execute you "py" program anywhere by using the command "xxx.py",
but when you want to use an exsiting file as it's input, you have to
use something like "pythong xxx.py < input.txt".

It's very inconvenient as I tried to make my python programs cowork with vim.

Sorry for my poor english!

please put #!/usr/bin/env python in the first line

and if you want to take input.txt as the argument, you can refer it at the
program as sys.argv[1]

----- Original Message ----- 
From: "Peter Cai" <newptcai at gmail.com>
To: <python-chinese at lists.python.cn>
Sent: Monday, July 04, 2005 12:55 AM
Subject: [python-chinese] How execute a .py in this way?


If it's a executable file, a ".exe" file, you can launch it in this
way, "xxx.exe < input.txt". The text file "input.txt" will be
considered as the standard input.

But when I use this trick on python, it doesn't work. The only way to
do so is like this "python xxx.py < input.txt". But this method has a
problem, that you have to include the full path of "xxx.py" unless
it's in your current folder even if "xxx.py" is in a folder which has
been include in the eviorment variable "path" on windows. Thus, you
can execute you "py" program anywhere by using the command "xxx.py",
but when you want to use an exsiting file as it's input, you have to
use something like "pythong xxx.py < input.txt".

It's very inconvenient as I tried to make my python programs cowork with
vim.

Sorry for my poor english!
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