optparse

问题 I am trying to pass multiple file path arguments via command line to an Rscript which can then be processed using an arguments parser. Ultimately I would want something like this Rscript test.R --inputfiles fileA.txt fileB.txt fileC.txt --printvar yes --size 10 --anotheroption helloworld -- etc... passed through the command line and have the result as an array in R when parsed args$inputfiles = "fileA.txt", "fileB.txt", "fileC.txt" I have tried several parsers including optparse and getopt

问题 This Question is continuation of old question @: how to access nargs of optparse-add_action? As that question was answered for what it was in-tented. Brief: Suppose if I am using add_option utility like below: parser.add_option('-c','--categories', dest='Categories', nargs=4 ) Is there a way to modify nargs of add_option() from user input using raw_input .? EDIT: I will give a clear difference between my "previous question need" and "this question need". First question case: My script will

问题 Using python's optparse module I would like to add extra example lines below the regular usage output. My current help_print() output looks like this: usage: check_dell.py [options] options: -h, --help show this help message and exit -s, --storage checks virtual and physical disks -c, --chassis checks specified chassis components I would like it to include usage examples for the less *nix literate users at my work. Something like this: usage: check_dell.py [options] options: -h, --help show

问题 Using python's optparse module I would like to add extra example lines below the regular usage output. My current help_print() output looks like this: usage: check_dell.py [options] options: -h, --help show this help message and exit -s, --storage checks virtual and physical disks -c, --chassis checks specified chassis components I would like it to include usage examples for the less *nix literate users at my work. Something like this: usage: check_dell.py [options] options: -h, --help show

问题 When I use Python's argparse or optparse command line argument parser, any unique prefix of an argument is considered valid, e.g. $ ./buildall.py --help usage: buildall.py [-h] [-f] Build all repositories optional arguments: -h, --help show this help message and exit -f, --force Build dirty repositories works with --help , --hel , --he for the help option as well as --forc and --fo for the force option. Can this behavior be turned off somehow? I want to get an error message for incomplete

问题 I am using optparse to get command line input. Lets say that I am running a script demo.py and it creates some output. But unless I specify the command line input, the output is not written to a file. I am trying to do the following: python demo.py in command line should run the script, but not write the output anywhere. python demo.py -o in command line should write the output to my default file name output.txt . python demo.py -o demooutput.txt in command line should write the output to

问题 I'm currently working on a script that will be able to take multiple flags. I want it so that no matter what the last argument should be 'start|stop|status'. #!/usr/bin/env python from argparse import ArgumentParser def argument_analysis(): """ This will analyze arguments, and return the region as a string, the filter as a dictionary, and the command as a string. :return: region,filters,command """ parser_options = ArgumentParser() parser_options.add_argument("-r", "--region", dest='region',

问题 I have written a subclass for Option and OptionParser in optparse. I am overriding the add_option function in OptionParser to make it parse a new keyword. Following is my code. from optparse import Option, OptionError, OptionParser class MyOptionParser(OptionParser): def add_option(self,*args,**kwargs): ##add the new keyword "deft". If deft="some value", kwargs[default] = deft ##else process args to get deft if kwargs.has_key["deft"]: newDef = kwargs["deft"] del kwargs["deft"] else: newDef =

问题 Trying to learn how to use outparse. So here is the situation, I think I got my setup correct its just how to set my options is kinda... confusing me. Basically I just want to check my filename to see if there are specific strings. For example: python script.py -f filename.txt -a hello simple I want it to return something like... Reading filename.txt.... The word, Hello, was found at: Line 10 The word, simple, was found at: Line 15 Here is what I have so far, I just don't know how to set it

问题 Using python optparse.py, is there a way to work out whether a specific option value was set from the command line or from the default value. Ideally I would like to have a dict just like defaults, but containing the options actually supplied from command line I know that you could compare the value for each option with defaults, but this wouldn't distinguish a value was passed through command line which matched the default. Thanks! EDIT Sorry my original phrasing wasn't very clear. I have a