178 lines
3.2 KiB
Python
178 lines
3.2 KiB
Python
"""Constants used internally in arrow."""
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import sys
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from datetime import datetime
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if sys.version_info < (3, 8): # pragma: no cover
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from typing_extensions import Final
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else:
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from typing import Final # pragma: no cover
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# datetime.max.timestamp() errors on Windows, so we must hardcode
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# the highest possible datetime value that can output a timestamp.
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# tl;dr platform-independent max timestamps are hard to form
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# See: https://stackoverflow.com/q/46133223
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try:
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# Get max timestamp. Works on POSIX-based systems like Linux and macOS,
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# but will trigger an OverflowError, ValueError, or OSError on Windows
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_MAX_TIMESTAMP = datetime.max.timestamp()
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except (OverflowError, ValueError, OSError): # pragma: no cover
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# Fallback for Windows and 32-bit systems if initial max timestamp call fails
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# Must get max value of ctime on Windows based on architecture (x32 vs x64)
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# https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/ctime-ctime32-ctime64-wctime-wctime32-wctime64
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# Note: this may occur on both 32-bit Linux systems (issue #930) along with Windows systems
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is_64bits = sys.maxsize > 2**32
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_MAX_TIMESTAMP = (
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datetime(3000, 1, 1, 23, 59, 59, 999999).timestamp()
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if is_64bits
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else datetime(2038, 1, 1, 23, 59, 59, 999999).timestamp()
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)
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MAX_TIMESTAMP: Final[float] = _MAX_TIMESTAMP
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MAX_TIMESTAMP_MS: Final[float] = MAX_TIMESTAMP * 1000
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MAX_TIMESTAMP_US: Final[float] = MAX_TIMESTAMP * 1_000_000
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MAX_ORDINAL: Final[int] = datetime.max.toordinal()
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MIN_ORDINAL: Final[int] = 1
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DEFAULT_LOCALE: Final[str] = "en-us"
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# Supported dehumanize locales
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DEHUMANIZE_LOCALES = {
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"en",
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"en-us",
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"en-gb",
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"en-au",
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"en-be",
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"en-jp",
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"en-za",
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"en-ca",
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"en-ph",
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"fr",
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"fr-fr",
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"fr-ca",
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"it",
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"it-it",
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"es",
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"es-es",
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"el",
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"el-gr",
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"ja",
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"ja-jp",
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"se",
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"se-fi",
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"se-no",
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"se-se",
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"sv",
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"sv-se",
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"fi",
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"fi-fi",
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"zh",
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"zh-cn",
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"zh-tw",
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"zh-hk",
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"nl",
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"nl-nl",
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"be",
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"be-by",
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"pl",
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"pl-pl",
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"ru",
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"ru-ru",
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"af",
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"bg",
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"bg-bg",
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"ua",
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"uk",
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"uk-ua",
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"mk",
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"mk-mk",
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"de",
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"de-de",
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"de-ch",
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"de-at",
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"nb",
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"nb-no",
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"nn",
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"nn-no",
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"pt",
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"pt-pt",
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"pt-br",
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"tl",
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"tl-ph",
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"vi",
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"vi-vn",
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"tr",
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"tr-tr",
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"az",
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"az-az",
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"da",
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"da-dk",
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"ml",
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"hi",
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"cs",
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"cs-cz",
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"sk",
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"sk-sk",
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"fa",
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"fa-ir",
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"mr",
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"ca",
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"ca-es",
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"ca-ad",
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"ca-fr",
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"ca-it",
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"eo",
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"eo-xx",
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"bn",
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"bn-bd",
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"bn-in",
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"rm",
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"rm-ch",
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"ro",
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"ro-ro",
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"sl",
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"sl-si",
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"id",
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"id-id",
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"ne",
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"ne-np",
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"ee",
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"et",
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"sw",
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"sw-ke",
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"sw-tz",
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"la",
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"la-va",
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"lt",
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"lt-lt",
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"ms",
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"ms-my",
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"ms-bn",
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"or",
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"or-in",
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"lb",
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"lb-lu",
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"zu",
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"zu-za",
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"sq",
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"sq-al",
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"ta",
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"ta-in",
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"ta-lk",
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"ur",
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"ur-pk",
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"ka",
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"ka-ge",
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"kk",
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"kk-kz",
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# "lo",
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# "lo-la",
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"am",
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"am-et",
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"hy-am",
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"hy",
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"uz",
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"uz-uz",
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}
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