`locale` --- 國際化服務¶

原始碼：Lib/locale.py

The locale module opens access to the POSIX locale database and functionality. The POSIX locale mechanism allows programmers to deal with certain cultural issues in an application, without requiring the programmer to know all the specifics of each country where the software is executed.

The locale module is implemented on top of the _locale module, which in turn uses an ANSI C locale implementation if available.

The locale module defines the following exception and functions:

exception locale.Error¶: Exception raised when the locale passed to setlocale() is not recognized.

locale.setlocale(category, locale=None)¶

If locale is given and not None, setlocale() modifies the locale setting for the category. The available categories are listed in the data description below. locale may be a string, or a pair, language code and encoding. An empty string specifies the user's default settings. If the modification of the locale fails, the exception Error is raised. If successful, the new locale setting is returned.

If locale is a pair, it is converted to a locale name using the locale aliasing engine. The language code has the same format as a locale name, but without encoding and @-modifier. The language code and encoding can be None.

If locale is omitted or None, the current setting for category is returned.

範例：

>>> import locale
>>> loc = locale.setlocale(locale.LC_ALL)  # get current locale
# use German locale; name and availability varies with platform
>>> locale.setlocale(locale.LC_ALL, 'de_DE.UTF-8')
>>> locale.strcoll('f\xe4n', 'foo')  # compare a string containing an umlaut
>>> locale.setlocale(locale.LC_ALL, '')   # use user's preferred locale
>>> locale.setlocale(locale.LC_ALL, 'C')  # use default (C) locale
>>> locale.setlocale(locale.LC_ALL, loc)  # restore saved locale

setlocale() is not thread-safe on most systems. Applications typically start with a call of:

import locale
locale.setlocale(locale.LC_ALL, '')

This sets the locale for all categories to the user's default setting (typically specified in the LANG environment variable). If the locale is not changed thereafter, using multithreading should not cause problems.

locale.localeconv()¶

Returns the database of the local conventions as a dictionary. This dictionary has the following strings as keys:

分類	Key	含義
`LC_NUMERIC`	`'decimal_point'`	Decimal point character.
	`'grouping'`	Sequence of numbers specifying which relative positions the `'thousands_sep'` is expected. If the sequence is terminated with `CHAR_MAX`, no further grouping is performed. If the sequence terminates with a `0`, the last group size is repeatedly used.
	`'thousands_sep'`	Character used between groups.
`LC_MONETARY`	`'int_curr_symbol'`	International currency symbol.
	`'currency_symbol'`	Local currency symbol.
	`'p_cs_precedes/n_cs_precedes'`	Whether the currency symbol precedes the value (for positive resp. negative values).
	`'p_sep_by_space/n_sep_by_space'`	Whether the currency symbol is separated from the value by a space (for positive resp. negative values).
	`'mon_decimal_point'`	Decimal point used for monetary values.
	`'frac_digits'`	Number of fractional digits used in local formatting of monetary values.
	`'int_frac_digits'`	Number of fractional digits used in international formatting of monetary values.
	`'mon_thousands_sep'`	Group separator used for monetary values.
	`'mon_grouping'`	Equivalent to `'grouping'`, used for monetary values.
	`'positive_sign'`	Symbol used to annotate a positive monetary value.
	`'negative_sign'`	Symbol used to annotate a negative monetary value.
	`'p_sign_posn/n_sign_posn'`	The position of the sign (for positive resp. negative values), see below.

All numeric values can be set to CHAR_MAX to indicate that there is no value specified in this locale.

The possible values for 'p_sign_posn' and 'n_sign_posn' are given below.

Value	Explanation
`0`	Currency and value are surrounded by parentheses.
`1`	The sign should precede the value and currency symbol.
`2`	The sign should follow the value and currency symbol.
`3`	The sign should immediately precede the value.
`4`	The sign should immediately follow the value.
`CHAR_MAX`	Nothing is specified in this locale.

The function temporarily sets the LC_CTYPE locale to the LC_NUMERIC locale or the LC_MONETARY locale if locales are different and numeric or monetary strings are non-ASCII. This temporary change affects other threads.

在 3.7 版的變更: The function now temporarily sets the LC_CTYPE locale to the LC_NUMERIC locale in some cases.

locale.nl_langinfo(option)¶

Return some locale-specific information as a string. This function is not available on all systems, and the set of possible options might also vary across platforms. The possible argument values are numbers, for which symbolic constants are available in the locale module.

The nl_langinfo() function accepts one of the following keys. Most descriptions are taken from the corresponding description in the GNU C library.

locale.CODESET¶: Get a string with the name of the character encoding used in the selected locale.

locale.D_T_FMT¶: Get a string that can be used as a format string for time.strftime() to represent date and time in a locale-specific way.

locale.D_FMT¶: Get a string that can be used as a format string for time.strftime() to represent a date in a locale-specific way.

locale.T_FMT¶: Get a string that can be used as a format string for time.strftime() to represent a time in a locale-specific way.

locale.T_FMT_AMPM¶: Get a format string for time.strftime() to represent time in the am/pm format.

locale.DAY_1¶
locale.DAY_2¶
locale.DAY_3¶
locale.DAY_4¶
locale.DAY_5¶
locale.DAY_6¶
locale.DAY_7¶: Get the name of the n-th day of the week.

備註

This follows the US convention of DAY_1 being Sunday, not the international convention (ISO 8601) that Monday is the first day of the week.

locale.ABDAY_1¶
locale.ABDAY_2¶
locale.ABDAY_3¶
locale.ABDAY_4¶
locale.ABDAY_5¶
locale.ABDAY_6¶
locale.ABDAY_7¶: Get the abbreviated name of the n-th day of the week.

locale.MON_1¶
locale.MON_2¶
locale.MON_3¶
locale.MON_4¶
locale.MON_5¶
locale.MON_6¶
locale.MON_7¶
locale.MON_8¶
locale.MON_9¶
locale.MON_10¶
locale.MON_11¶
locale.MON_12¶: Get the name of the n-th month.

locale.ABMON_1¶
locale.ABMON_2¶
locale.ABMON_3¶
locale.ABMON_4¶
locale.ABMON_5¶
locale.ABMON_6¶
locale.ABMON_7¶
locale.ABMON_8¶
locale.ABMON_9¶
locale.ABMON_10¶
locale.ABMON_11¶
locale.ABMON_12¶: Get the abbreviated name of the n-th month.

locale.RADIXCHAR¶: Get the radix character (decimal dot, decimal comma, etc.).

locale.THOUSEP¶: Get the separator character for thousands (groups of three digits).

locale.YESEXPR¶: Get a regular expression that can be used with the regex function to recognize a positive response to a yes/no question.

locale.NOEXPR¶: Get a regular expression that can be used with the regex(3) function to recognize a negative response to a yes/no question.

備註

The regular expressions for YESEXPR and NOEXPR use syntax suitable for the

locale --- 國際化服務¶

`locale` --- 國際化服務¶