CODEWITHSUNDEEP
pythonoptparse
shobhit
shobhit

Reputation: 700

Unable to pass argument to the python using Optparse

i have written this python program. whenever i run the script using parameters like

python script.py -t It returns me current time in unixtime.

but whenever i try to pass an argument like

python script.py -c 1325058720 It says LMT is not defined. So i removed the LMT from the 

LMT = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.localtime())

Then it just skip my argument and returns the current time in Localtime.

Can someone please help me to pass an argument in the LMT and convert it to Readable time format. I need to pass an argument to it and see the output in the localtime readable format

import optparse
import re
import time


GMT = int(time.time())
AMT = 123456789
LMT = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.localtime(LMT))


VERBOSE=False
def report(output,cmdtype="UNIX COMMAND:"):
   #Notice the global statement allows input from outside of function
   if VERBOSE:
       print "%s: %s" % (cmdtype, output)
   else:
       print output

#Function to control option parsing in Python
def controller():
    global VERBOSE
    p = optparse.OptionParser()
    p.add_option('--time', '-t', action="store_true", help='gets current time in epoch')
    p.add_option('--nums', '-n', action="store_true", help='gets the some random number')
    p.add_option('--conv', '-c', action="store_true", help='convert epoch to readable')
    p.add_option('--verbose', '-v',
                action = 'store_true',
                help='prints verbosely',
                default=False)
    #Option Handling passes correct parameter to runBash
    options, arguments = p.parse_args()
    if options.verbose:
     VERBOSE=True
    if options.time:
        value = GMT
        report(value, "GMT")
    elif options.nums:
        value = AMT
        report(value, "AMT")
    elif options.conv:
        value = LMT
        report(value, "LMT")
    else:
        p.print_help()

Upvotes: 1

Views: 509

Answers (2)

shobhit
shobhit

Reputation: 700

I was wrong to access the variable outside the function which didn't clicked me.

 elif options.conv:
        LMT = options.conv
        LMT= float(LMT)
        LMT = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.localtime(LMT))
        print '%s'% LMT

Upvotes: 1

Lennart Regebro
Lennart Regebro

Reputation: 172269

The parameters you pass in are completely irrelevant. Way before optparse even tries to look at your parameters, this line is executed:

LMT = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.localtime(LMT))

And as you point out, LMT is undefined, and will raise an error. I have no idea what you expect LMT to be at that point. time.localtime() converts a number of seconds from epoch to localtime, since you want the current time (if I understand you) you don't need to pass in anything.

So in fact, you first say that:

python script.py -t  # It returns me current time in unixtime.

This is wrong, it does not. Try it and you'll see. It gives you a NameError: name 'LMT' is not defined.

Upvotes: 0

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