#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2010 Doug Hellmann.  All rights reserved.
     #
     """Example setting the locale using environment variable(s).
     """
     #end_pymotw_header
     
     import locale
     import os
     import pprint
     import codecs
     import sys
     
     sys.stdout = codecs.getwriter('UTF-8')(sys.stdout)
     
     # Default settings based on the user's environment.
     locale.setlocale(locale.LC_ALL, '')
     
     print 'Environment settings:'
     for env_name in [ 'LC_ALL', 'LC_CTYPE', 'LANG', 'LANGUAGE' ]:
         print '\t%s = %s' % (env_name, os.environ.get(env_name, ''))
     
     # What is the locale?
     print
     print 'Locale from environment:', locale.getlocale()
     
     template = """
     Numeric formatting:
     
       Decimal point      : "%(decimal_point)s"
       Grouping positions : %(grouping)s
       Thousands separator: "%(thousands_sep)s"
     
     Monetary formatting:
     
       International currency symbol             : "%(int_curr_symbol)r"
       Local currency symbol                     : %(currency_symbol)r (%(currency_symbol_u)s)
       Symbol precedes positive value            : %(p_cs_precedes)s
       Symbol precedes negative value            : %(n_cs_precedes)s
       Decimal point                             : "%(mon_decimal_point)s"
       Digits in fractional values               : %(frac_digits)s
       Digits in fractional values, international: %(int_frac_digits)s
       Grouping positions                        : %(mon_grouping)s
       Thousands separator                       : "%(mon_thousands_sep)s"
       Positive sign                             : "%(positive_sign)s"
       Positive sign position                    : %(p_sign_posn)s
       Negative sign                             : "%(negative_sign)s"
       Negative sign position                    : %(n_sign_posn)s
     
     """
     
     sign_positions = {
         0 : 'Surrounded by parentheses',
         1 : 'Before value and symbol',
         2 : 'After value and symbol',
         3 : 'Before value',
         4 : 'After value',
         locale.CHAR_MAX : 'Unspecified',
         }
     
     info = {}
     info.update(locale.localeconv())
     info['p_sign_posn'] = sign_positions[info['p_sign_posn']]
     info['n_sign_posn'] = sign_positions[info['n_sign_posn']]
     # convert the currency symbol to unicode
     info['currency_symbol_u'] = info['currency_symbol'].decode('utf-8')
     
     print (template % info)