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to call class function from command line

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abc def

Posts: 2
Nickname: mareeinaa
Registered: Jul, 2006

to call class function from command line

Posted: Jul 17, 2006 5:27 AM

Hi,

I have written following code to call class function from command line

###

##### This is a script for calling function from command line #####

import getopt, sys
from sys import argv

class fileOperations:

def writeFile():
fw = open("abc.txt",'w')
fw.write('Simple File Operations')
fw.close()

def writeSpFile(*args):
fw = open(args[0],'w')
fw.write('Simple File Operations')
fw.close()

"""Our dispatch table has function names as the keys, with (description, function) tuples as values."""

x = fileOperations()
DISPATCH_TABLE = { 'writeFile' : x.writeFile,
'writeSpFile' : x.writeSpFile }

##### This is a script for calling function from command line #####

def callFunction(function_name,arguments):
the_func = DISPATCH_TABLE[function_name]
count = len(arguments)
print count

x.writeFile()
#the_func(*arguments)

if __name__ == "__main__" :

print "Unknown command '%s'" % sys.argv[1]

if DISPATCH_TABLE.has_key( sys.argv[1] ) :
callFunction(sys.argv[1],sys.argv[2:])

sys.exit( 1 )
###

when i am running this command
>>> python class_fn_Call1.py writeFile
I am getting the following error

Traceback (most recent call last):
File "class_fn_Call1.py", line 39, in ?
callFunction(sys.argv[1],sys.argv[2:])
File "class_fn_Call1.py", line 33, in callFunction
x.writeFile()
TypeError: writeFile() takes no arguments (1 given)

Same program i am able to run without using class functions. i.e if i write writeFile and writeSpFile functions as normal functions program will run properly. But when i am making it as class functions then it is giving errors.
So can anybody help me to reslove this problem? Is this a proper way to call a class function?
Please help me.

Thanks & Regards,

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