babel.numbers ~~~~~~~~~~~~~ Locale dependent formatting and parsing of numeric data. The default locale for the functions in this module is determined by the following environment variables, in that order: * ``LC_NUMERIC``, * ``LC_ALL``, and * ``LANG`` :copyright: (c) 2013-2023 by the Babel Team. :license: BSD, see LICENSE for more details.
Class |
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No class docstring; 0/10 instance variable, 3/9 methods documented |
Exception |
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Exception raised when a string cannot be parsed into a number. |
Exception |
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Exception thrown when a currency is requested for which no data is available. |
Exception |
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Exception raised when an unknown currency format is requested. |
Function | format |
Format a number as a currency value in compact form. |
Function | format |
Return the given decimal number formatted for a specific locale in compact form. |
Function | format |
Return formatted currency value. |
Function | format |
Return the given decimal number formatted for a specific locale. |
Function | format |
Return the given number formatted for a specific locale. |
Function | format |
Return formatted percent value for a specific locale. |
Function | format |
Return value formatted in scientific notation for a specific locale. |
Function | get |
Return the name used by the locale for the specified currency. |
Function | get |
Return currency's precision. |
Function | get |
Return the symbol used by the locale for the specified currency. |
Function | get |
Return the unit pattern used for long display of a currency value for a given locale. This is a string containing ``{0}`` where the numeric part should be substituted and ``{1}`` where the currency long display name should be substituted. |
Function | get |
Return maximum precision of a decimal instance's fractional part. |
Function | get |
Return minimal quantum of a number, as defined by precision. |
Function | get |
Return the symbol used by the locale to separate decimal fractions. |
Function | get |
Return the symbol used by the locale to separate mantissa and exponent. |
Function | get |
Return the symbol used by the locale to separate groups of thousands. |
Function | get |
Return the symbol used by the locale to represent infinity. |
Function | get |
Return the plus sign symbol used by the current locale. |
Function | get |
Return the plus sign symbol used by the current locale. |
Function | get |
Returns the list of currencies for the given territory that are valid for the given date range. In addition to that the currency database distinguishes between tender and non-tender currencies. By default only tender currencies are returned. |
Function | is |
Returns `True` only if a currency is recognized by Babel. |
Function | list |
Return a `set` of normalized currency codes. |
Function | normalize |
Returns the normalized identifier of any currency code. |
Function | parse |
Parse localized decimal string into a decimal. |
Function | parse |
Parse primary and secondary digit grouping |
Function | parse |
Parse localized number string into an integer. |
Function | parse |
Parse number format patterns |
Function | validate |
Check the currency code is recognized by Babel. |
Constant | LC |
Undocumented |
Constant | NUMBER |
Undocumented |
Constant | NUMBER |
Undocumented |
Constant | PREFIX |
Undocumented |
Constant | PREFIX |
Undocumented |
Constant | SUFFIX |
Undocumented |
Variable | number |
Undocumented |
Function | _format |
Undocumented |
Function | _get |
Returns the number after dividing by the unit and the format pattern to use. The algorithm is described here: https://www.unicode.org/reports/tr35/tr35-45/tr35-numbers.html#Compact_Number_Formats. |
(float|decimal.Decimal)|str
, currency: str
, *, format_type: Literal[ 'short']
= 'short', locale: (Locale|str)|None
= LC_NUMERIC, fraction_digits: int
= 0) -> str
:
(source)
¶
Format a number as a currency value in compact form. >>> format_compact_currency(12345, 'USD', locale='en_US') u'$12K' >>> format_compact_currency(123456789, 'USD', locale='en_US', fraction_digits=2) u'$123.46M' >>> format_compact_currency(123456789, 'EUR', locale='de_DE', fraction_digits=1) '123,5 Mio. €' :param number: the number to format :param currency: the currency code :param format_type: the compact format type to use. Defaults to "short". :param locale: the `Locale` object or locale identifier :param fraction_digits: Number of digits after the decimal point to use. Defaults to `0`.
(float|decimal.Decimal)|str
, *, format_type: Literal[ 'short', 'long']
= 'short', locale: (Locale|str)|None
= LC_NUMERIC, fraction_digits: int
= 0) -> str
:
(source)
¶
Return the given decimal number formatted for a specific locale in compact form. >>> format_compact_decimal(12345, format_type="short", locale='en_US') u'12K' >>> format_compact_decimal(12345, format_type="long", locale='en_US') u'12 thousand' >>> format_compact_decimal(12345, format_type="short", locale='en_US', fraction_digits=2) u'12.34K' >>> format_compact_decimal(1234567, format_type="short", locale="ja_JP") u'123万' >>> format_compact_decimal(2345678, format_type="long", locale="mk") u'2 милиони' >>> format_compact_decimal(21000000, format_type="long", locale="mk") u'21 милион' :param number: the number to format :param format_type: Compact format to use ("short" or "long") :param locale: the `Locale` object or locale identifier :param fraction_digits: Number of digits after the decimal point to use. Defaults to `0`.
(float|decimal.Decimal)|str
, currency: str
, format: (str|NumberPattern)|None
= None, locale: (Locale|str)|None
= LC_NUMERIC, currency_digits: bool
= True, format_type: Literal[ 'name', 'standard', 'accounting']
= 'standard', decimal_quantization: bool
= True, group_separator: bool
= True) -> str
:
(source)
¶
Return formatted currency value. >>> format_currency(1099.98, 'USD', locale='en_US') '$1,099.98' >>> format_currency(1099.98, 'USD', locale='es_CO') u'US$1.099,98' >>> format_currency(1099.98, 'EUR', locale='de_DE') u'1.099,98\xa0\u20ac' The format can also be specified explicitly. The currency is placed with the '¤' sign. As the sign gets repeated the format expands (¤ being the symbol, ¤¤ is the currency abbreviation and ¤¤¤ is the full name of the currency): >>> format_currency(1099.98, 'EUR', u'¤¤ #,##0.00', locale='en_US') u'EUR 1,099.98' >>> format_currency(1099.98, 'EUR', u'#,##0.00 ¤¤¤', locale='en_US') u'1,099.98 euros' Currencies usually have a specific number of decimal digits. This function favours that information over the given format: >>> format_currency(1099.98, 'JPY', locale='en_US') u'\xa51,100' >>> format_currency(1099.98, 'COP', u'#,##0.00', locale='es_ES') u'1.099,98' However, the number of decimal digits can be overridden from the currency information, by setting the last parameter to ``False``: >>> format_currency(1099.98, 'JPY', locale='en_US', currency_digits=False) u'\xa51,099.98' >>> format_currency(1099.98, 'COP', u'#,##0.00', locale='es_ES', currency_digits=False) u'1.099,98' If a format is not specified the type of currency format to use from the locale can be specified: >>> format_currency(1099.98, 'EUR', locale='en_US', format_type='standard') u'\u20ac1,099.98' When the given currency format type is not available, an exception is raised: >>> format_currency('1099.98', 'EUR', locale='root', format_type='unknown') Traceback (most recent call last): ... UnknownCurrencyFormatError: "'unknown' is not a known currency format type" >>> format_currency(101299.98, 'USD', locale='en_US', group_separator=False) u'$101299.98' >>> format_currency(101299.98, 'USD', locale='en_US', group_separator=True) u'$101,299.98' You can also pass format_type='name' to use long display names. The order of the number and currency name, along with the correct localized plural form of the currency name, is chosen according to locale: >>> format_currency(1, 'USD', locale='en_US', format_type='name') u'1.00 US dollar' >>> format_currency(1099.98, 'USD', locale='en_US', format_type='name') u'1,099.98 US dollars' >>> format_currency(1099.98, 'USD', locale='ee', format_type='name') u'us ga dollar 1,099.98' By default the locale is allowed to truncate and round a high-precision number by forcing its format pattern onto the decimal part. You can bypass this behavior with the `decimal_quantization` parameter: >>> format_currency(1099.9876, 'USD', locale='en_US') u'$1,099.99' >>> format_currency(1099.9876, 'USD', locale='en_US', decimal_quantization=False) u'$1,099.9876' :param number: the number to format :param currency: the currency code :param format: the format string to use :param locale: the `Locale` object or locale identifier :param currency_digits: use the currency's natural number of decimal digits :param format_type: the currency format type to use :param decimal_quantization: Truncate and round high-precision numbers to the format pattern. Defaults to `True`. :param group_separator: Boolean to switch group separator on/off in a locale's number format.
(float|decimal.Decimal)|str
, format: (str|NumberPattern)|None
= None, locale: (Locale|str)|None
= LC_NUMERIC, decimal_quantization: bool
= True, group_separator: bool
= True) -> str
:
(source)
¶
Return the given decimal number formatted for a specific locale. >>> format_decimal(1.2345, locale='en_US') u'1.234' >>> format_decimal(1.2346, locale='en_US') u'1.235' >>> format_decimal(-1.2346, locale='en_US') u'-1.235' >>> format_decimal(1.2345, locale='sv_SE') u'1,234' >>> format_decimal(1.2345, locale='de') u'1,234' The appropriate thousands grouping and the decimal separator are used for each locale: >>> format_decimal(12345.5, locale='en_US') u'12,345.5' By default the locale is allowed to truncate and round a high-precision number by forcing its format pattern onto the decimal part. You can bypass this behavior with the `decimal_quantization` parameter: >>> format_decimal(1.2346, locale='en_US') u'1.235' >>> format_decimal(1.2346, locale='en_US', decimal_quantization=False) u'1.2346' >>> format_decimal(12345.67, locale='fr_CA', group_separator=False) u'12345,67' >>> format_decimal(12345.67, locale='en_US', group_separator=True) u'12,345.67' :param number: the number to format :param format: :param locale: the `Locale` object or locale identifier :param decimal_quantization: Truncate and round high-precision numbers to the format pattern. Defaults to `True`. :param group_separator: Boolean to switch group separator on/off in a locale's number format.
(float|decimal.Decimal)|str
, locale: (Locale|str)|None
= LC_NUMERIC) -> str
:
(source)
¶
Return the given number formatted for a specific locale. >>> format_number(1099, locale='en_US') # doctest: +SKIP u'1,099' >>> format_number(1099, locale='de_DE') # doctest: +SKIP u'1.099' .. deprecated:: 2.6.0 Use babel.numbers.format_decimal() instead. :param number: the number to format :param locale: the `Locale` object or locale identifier
(float|decimal.Decimal)|str
, format: (str|NumberPattern)|None
= None, locale: (Locale|str)|None
= LC_NUMERIC, decimal_quantization: bool
= True, group_separator: bool
= True) -> str
:
(source)
¶
Return formatted percent value for a specific locale. >>> format_percent(0.34, locale='en_US') u'34%' >>> format_percent(25.1234, locale='en_US') u'2,512%' >>> format_percent(25.1234, locale='sv_SE') u'2\xa0512\xa0%' The format pattern can also be specified explicitly: >>> format_percent(25.1234, u'#,##0‰', locale='en_US') u'25,123‰' By default the locale is allowed to truncate and round a high-precision number by forcing its format pattern onto the decimal part. You can bypass this behavior with the `decimal_quantization` parameter: >>> format_percent(23.9876, locale='en_US') u'2,399%' >>> format_percent(23.9876, locale='en_US', decimal_quantization=False) u'2,398.76%' >>> format_percent(229291.1234, locale='pt_BR', group_separator=False) u'22929112%' >>> format_percent(229291.1234, locale='pt_BR', group_separator=True) u'22.929.112%' :param number: the percent number to format :param format: :param locale: the `Locale` object or locale identifier :param decimal_quantization: Truncate and round high-precision numbers to the format pattern. Defaults to `True`. :param group_separator: Boolean to switch group separator on/off in a locale's number format.
(float|decimal.Decimal)|str
, format: (str|NumberPattern)|None
= None, locale: (Locale|str)|None
= LC_NUMERIC, decimal_quantization: bool
= True) -> str
:
(source)
¶
Return value formatted in scientific notation for a specific locale. >>> format_scientific(10000, locale='en_US') u'1E4' The format pattern can also be specified explicitly: >>> format_scientific(1234567, u'##0.##E00', locale='en_US') u'1.23E06' By default the locale is allowed to truncate and round a high-precision number by forcing its format pattern onto the decimal part. You can bypass this behavior with the `decimal_quantization` parameter: >>> format_scientific(1234.9876, u'#.##E0', locale='en_US') u'1.23E3' >>> format_scientific(1234.9876, u'#.##E0', locale='en_US', decimal_quantization=False) u'1.2349876E3' :param number: the number to format :param format: :param locale: the `Locale` object or locale identifier :param decimal_quantization: Truncate and round high-precision numbers to the format pattern. Defaults to `True`.
str
, count: (float|decimal.Decimal)|None
= None, locale: (Locale|str)|None
= LC_NUMERIC) -> str
:
(source)
¶
Return the name used by the locale for the specified currency. >>> get_currency_name('USD', locale='en_US') u'US Dollar' .. versionadded:: 0.9.4 :param currency: the currency code. :param count: the optional count. If provided the currency name will be pluralized to that number if possible. :param locale: the `Locale` object or locale identifier.
Return currency's precision. Precision is the number of decimals found after the decimal point in the currency's format pattern. .. versionadded:: 2.5.0 :param currency: the currency code.
Return the symbol used by the locale for the specified currency. >>> get_currency_symbol('USD', locale='en_US') u'$' :param currency: the currency code. :param locale: the `Locale` object or locale identifier.
str
, count: (float|decimal.Decimal)|None
= None, locale: (Locale|str)|None
= LC_NUMERIC) -> str
:
(source)
¶
Return the unit pattern used for long display of a currency value for a given locale. This is a string containing ``{0}`` where the numeric part should be substituted and ``{1}`` where the currency long display name should be substituted. >>> get_currency_unit_pattern('USD', locale='en_US', count=10) u'{0} {1}' .. versionadded:: 2.7.0 :param currency: the currency code. :param count: the optional count. If provided the unit pattern for that number will be returned. :param locale: the `Locale` object or locale identifier.
Return maximum precision of a decimal instance's fractional part. Precision is extracted from the fractional part only.
Return the symbol used by the locale to separate decimal fractions. >>> get_decimal_symbol('en_US') u'.' :param locale: the `Locale` object or locale identifier
Return the symbol used by the locale to separate mantissa and exponent. >>> get_exponential_symbol('en_US') u'E' :param locale: the `Locale` object or locale identifier
Return the symbol used by the locale to separate groups of thousands. >>> get_group_symbol('en_US') u',' :param locale: the `Locale` object or locale identifier
Return the symbol used by the locale to represent infinity. >>> get_infinity_symbol('en_US') u'∞' :param locale: the `Locale` object or locale identifier
Return the plus sign symbol used by the current locale. >>> get_minus_sign_symbol('en_US') u'-' :param locale: the `Locale` object or locale identifier
Return the plus sign symbol used by the current locale. >>> get_plus_sign_symbol('en_US') u'+' :param locale: the `Locale` object or locale identifier
str
, start_date: datetime.date|None
= ..., end_date: datetime.date|None
= ..., tender: bool
= ..., non_tender: bool
= ..., include_details: Literal[ False]
= ...) -> list[ str]
:str
, start_date: datetime.date|None
= ..., end_date: datetime.date|None
= ..., tender: bool
= ..., non_tender: bool
= ..., include_details: Literal[ True]
= ...) -> list[ dict[ str, Any]]
:Returns the list of currencies for the given territory that are valid for the given date range. In addition to that the currency database distinguishes between tender and non-tender currencies. By default only tender currencies are returned. The return value is a list of all currencies roughly ordered by the time of when the currency became active. The longer the currency is being in use the more to the left of the list it will be. The start date defaults to today. If no end date is given it will be the same as the start date. Otherwise a range can be defined. For instance this can be used to find the currencies in use in Austria between 1995 and 2011: >>> from datetime import date >>> get_territory_currencies('AT', date(1995, 1, 1), date(2011, 1, 1)) ['ATS', 'EUR'] Likewise it's also possible to find all the currencies in use on a single date: >>> get_territory_currencies('AT', date(1995, 1, 1)) ['ATS'] >>> get_territory_currencies('AT', date(2011, 1, 1)) ['EUR'] By default the return value only includes tender currencies. This however can be changed: >>> get_territory_currencies('US') ['USD'] >>> get_territory_currencies('US', tender=False, non_tender=True, ... start_date=date(2014, 1, 1)) ['USN', 'USS'] .. versionadded:: 2.0 :param territory: the name of the territory to find the currency for. :param start_date: the start date. If not given today is assumed. :param end_date: the end date. If not given the start date is assumed. :param tender: controls whether tender currencies should be included. :param non_tender: controls whether non-tender currencies should be included. :param include_details: if set to `True`, instead of returning currency codes the return value will be dictionaries with detail information. In that case each dictionary will have the keys ``'currency'``, ``'from'``, ``'to'``, and ``'tender'``.
Returns `True` only if a currency is recognized by Babel. This method always return a Boolean and never raise.
Return a `set` of normalized currency codes. .. versionadded:: 2.5.0 :param locale: filters returned currency codes by the provided locale. Expected to be a locale instance or code. If no locale is provided, returns the list of all currencies from all locales.
Returns the normalized identifier of any currency code. Accepts a ``locale`` parameter for fined-grained validation, working as the one defined above in ``list_currencies()`` method. Returns None if the currency is unknown to Babel.
str
, locale: (Locale|str)|None
= LC_NUMERIC, strict: bool
= False) -> decimal.Decimal
:
(source)
¶
Parse localized decimal string into a decimal. >>> parse_decimal('1,099.98', locale='en_US') Decimal('1099.98') >>> parse_decimal('1.099,98', locale='de') Decimal('1099.98') >>> parse_decimal('12 345,123', locale='ru') Decimal('12345.123') When the given string cannot be parsed, an exception is raised: >>> parse_decimal('2,109,998', locale='de') Traceback (most recent call last): ... NumberFormatError: '2,109,998' is not a valid decimal number If `strict` is set to `True` and the given string contains a number formatted in an irregular way, an exception is raised: >>> parse_decimal('30.00', locale='de', strict=True) Traceback (most recent call last): ... NumberFormatError: '30.00' is not a properly formatted decimal number. Did you mean '3.000'? Or maybe '30,00'? >>> parse_decimal('0.00', locale='de', strict=True) Traceback (most recent call last): ... NumberFormatError: '0.00' is not a properly formatted decimal number. Did you mean '0'? :param string: the string to parse :param locale: the `Locale` object or locale identifier :param strict: controls whether numbers formatted in a weird way are accepted or rejected :raise NumberFormatError: if the string can not be converted to a decimal number
Parse primary and secondary digit grouping >>> parse_grouping('##') (1000, 1000) >>> parse_grouping('#,###') (3, 3) >>> parse_grouping('#,####,###') (3, 4)
Parse localized number string into an integer. >>> parse_number('1,099', locale='en_US') 1099 >>> parse_number('1.099', locale='de_DE') 1099 When the given string cannot be parsed, an exception is raised: >>> parse_number('1.099,98', locale='de') Traceback (most recent call last): ... NumberFormatError: '1.099,98' is not a valid number :param string: the string to parse :param locale: the `Locale` object or locale identifier :return: the parsed number :raise `NumberFormatError`: if the string can not be converted to a number
Check the currency code is recognized by Babel. Accepts a ``locale`` parameter for fined-grained validation, working as the one defined above in ``list_currencies()`` method. Raises a `UnknownCurrencyError` exception if the currency is unknown to Babel.
(float|decimal.Decimal)|str
, currency: str
, format: (str|NumberPattern)|None
= None, locale: (Locale|str)|None
= LC_NUMERIC, currency_digits: bool
= True, format_type: Literal[ 'name', 'standard', 'accounting']
= 'standard', decimal_quantization: bool
= True, group_separator: bool
= True) -> str
:
(source)
¶
Undocumented
(float|decimal.Decimal)|str
, compact_format: LocaleDataDict
, locale: Locale
, fraction_digits: int
) -> tuple[ decimal.Decimal, NumberPattern|None]
:
(source)
¶
Returns the number after dividing by the unit and the format pattern to use. The algorithm is described here: https://www.unicode.org/reports/tr35/tr35-45/tr35-numbers.html#Compact_Number_Formats.