snippets_argparse

argparse

#!/usr/bin/env python
# -*- coding: utf-8 -*-
########################################################################
# 
# Copyright (c) 2016 Baidu.com, Inc. All Rights Reserved
# 
########################################################################
 
"""
File: argparse_test.py
Author: mijianhong(mijianhong@baidu.com)
Date: 2016/07/04 17:26:11
"""

#!/usr/bin/env python
# -*- coding: utf-8 -*-
########################################################################
# 
# Copyright (c) 2016 Baidu.com, Inc. All Rights Reserved
# 
########################################################################
 
"""
File: argparse_test.py
Author: mijianhong(mijianhong@baidu.com)
Date: 2016/07/04 17:26:11
"""

import argparse

 

parser = argparse.ArgumentParser()

 

parser.add_argument('-s', action='store',

                   dest='simple_value',

                   default='default',

                    help='Storea simple value')

 

parser.add_argument('-c', action='store_const',

                   dest='constant_value',

                   const='value-to-store',


                   help='Store a constant value')

 

parser.add_argument('-t', action='store_true',

                   default=False,

                   dest='boolean_switch',

                   help='Set a switch to true')

parser.add_argument('-f', action='store_false',

                   default=False,

                   dest='boolean_switch',

                   help='Set a switch to false')

 

parser.add_argument('-a', action='append',

                   dest='collection',

                   default=[],

                   help='Add repeated values to a list')

 

parser.add_argument('-A', action='append_const',

                   dest='const_collection',

                   const='value-1-to-append',

                   default=[],

                   help='Add different values to list')

parser.add_argument('-B', action='append_const',

                   dest='const_collection',

                   const='value-2-to-append',

                   help='Add different values to list')

 
parser.add_argument('--version', action='version',

                   version='%(prog)s 1.0')

 

results = parser.parse_args()

print 'simple_value    = %r' % results.simple_value

print 'constant_value  = %r' % results.constant_value

print 'boolean_switch  = %r' % results.boolean_switch

print 'collection      = %r' % results.collection

print 'const_collection = %r' % results.const_collection

ConfigParser_Read

#!/usr/bin/env python
# -*- coding: utf-8 -*-
########################################################################
# 
# Copyright (c) 2016 Baidu.com, Inc. All Rights Reserved
# 
########################################################################
 
"""
File: config_parse_read.py
Author: mijianhong(mijianhong@baidu.com)
Date: 2016/07/04 16:25:38
"""
import ConfigParser

config = ConfigParser.ConfigParser()
config.read('example.cfg')

# Set the third, optional argument of get to 1 if you wish to use raw mode.
print config.get('Section1', 'foo', 0)  # -> "Python is fun!"
print config.get('Section1', 'foo', 1)  # -> "%(bar)s is %(baz)s!"

# The optional fourth argument is a dict with members that will take
# precedence in interpolation.
print config.get('Section1', 'foo', 0, {'bar': 'Documentation',
                                                    'baz': 'evil'})

ConfigParser_Write

#!/usr/bin/env python
# -*- coding: utf-8 -*-
########################################################################
# 
# Copyright (c) 2016 Baidu.com, Inc. All Rights Reserved
# 
########################################################################
 
"""
File: config_parse_test.py
Author: mijianhong(mijianhong@baidu.com)
Date: 2016/07/04 16:19:36
"""
import ConfigParser

config = ConfigParser.RawConfigParser()

# When adding sections or items, add them in the reverse order of
# how you want them to be displayed in the actual file.
# In addition, please note that using RawConfigParser's and the raw
# mode of ConfigParser's respective set functions, you can assign
# non-string values to keys internally, but will receive an error
# when attempting to write to a file or when you get it in non-raw
# mode. SafeConfigParser does not allow such assignments to take place.
config.add_section('Section1')
config.set('Section1', 'an_int', '15')
config.set('Section1', 'a_bool', 'true')
config.set('Section1', 'a_float', '3.1415')
config.set('Section1', 'baz', 'fun')
config.set('Section1', 'bar', 'Python')
config.set('Section1', 'foo', '%(bar)s is %(baz)s!')

# Writing our configuration file to 'example.cfg'
with open('example.cfg', 'wb') as configfile:
    config.write(configfile)