[cronos4d]

I have the following code

if sys.argv[4] == 'state':
	try:

		print(sys.argv[5])

	except:

		print "Error gathering server state ", sys.argv[5]

I invoke the python program with myscript.py option1, 2, 3, etc

The fifth argument is a server with a numeric range:
server1,server2,server3, etc.

Instead of wrapping the script, I would like to be able to feed a range to the script instead.
For example, right now all I can do is myscript.py server1, myscript.py server2

I would like to be able to pass myscript.py server1-20 and it would execute the command on all 20 servers.

Any suggestions are appreciated.

[linuxunil]

It would probably be easier and more useful to just put the servers in a configuration file and load it. This would keep you from having to type the server over and over again. You could even use a YAML file and declare groups of servers. Take a look at PyYaml. YAML is much easier to read and write than XML.

[cronos4d]

linuxunil, on 1 Jul, 2008 - 07:33 AM, said:

It would probably be easier and more useful to just put the servers in a configuration file and load it. This would keep you from having to type the server over and over again. You could even use a YAML file and declare groups of servers. Take a look at PyYaml. YAML is much easier to read and write than XML.

I agree that this might be easier; however, I do not always want to execute commands against all servers in the config file. Hence the need for a range.

[perfectly.insane]

cronos4d, on 30 Jun, 2008 - 06:44 PM, said:

I have the following code

if sys.argv[4] == 'state':
	try:

		print(sys.argv[5])

	except:

		print "Error gathering server state ", sys.argv[5]

I invoke the python program with myscript.py option1, 2, 3, etc

The fifth argument is a server with a numeric range:
server1,server2,server3, etc.

Instead of wrapping the script, I would like to be able to feed a range to the script instead.
For example, right now all I can do is myscript.py server1, myscript.py server2

I would like to be able to pass myscript.py server1-20 and it would execute the command on all 20 servers.

Any suggestions are appreciated.

Use ZSH.
Actually, bash supports this syntax also.

myscript.py server{1..20}

Expands to:
myscript.py server1 server2 server3 ... server20

Then simply process the argument list. If you have other arguments besides servers that get passed to your program, then make them options (as in, begin with one or two dashes... --long-option). You can also implement an option terminator option (just two dashes, --) to indicate that the rest of the arguments in the list are not options.

[linuxunil]

You may be better off with optparse, it provides more flexibility in setting up you option parsing. Reference Guide