Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2608
File: holidays/locale/en_US/LC_MESSAGES/VC.po:76-76
Timestamp: 2025-06-10T05:08:07.939Z
Learning: For the holidays project, localization file formatting issues (like missing terminal periods in .po files) should be automatically fixed by running `make l10n` command (which is included in `make check`). Authors should be directed to use this automated tooling instead of manual formatting fixes.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2631
File: tests/countries/test_sint_maarten.py:62-0
Timestamp: 2025-06-14T21:12:07.224Z
Learning: KJhellico prefers to focus on completing and reviewing the main holiday implementation code before doing detailed reviews of the corresponding test files.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2792
File: holidays/locale/fr/LC_MESSAGES/RW.po:56-59
Timestamp: 2025-08-23T11:49:49.880Z
Learning: In the holidays library localization files, translations should prioritize source accuracy over standard linguistic conventions. For example, if official documents use title case in French translations (like "Journée Nationale des Héros" for Rwanda), this should be preserved rather than following general French capitalization rules.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2881
File: holidays/locale/fr/LC_MESSAGES/DZ.po:37-41
Timestamp: 2025-09-03T17:10:35.672Z
Learning: In Algerian French localization (holidays/locale/fr/LC_MESSAGES/DZ.po), capitalization should follow Algerian source-accurate conventions rather than standard French orthographic rules. For example, "Jour de l'An Grégorien" with capital "G" is correct for Algerian usage, even though standard French would typically use lowercase "grégorien".

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2608
File: tests/countries/test_saint_vincent_and_the_grenadines.py:162-178
Timestamp: 2025-07-02T18:21:59.302Z
Learning: In the Saint Vincent and the Grenadines holiday tests, for holidays without observed rules that only require a single assertHolidayName call, pass the holiday name directly as a string literal rather than storing it in a variable first for cleaner, more concise code.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2960
File: holidays/locale/ca/LC_MESSAGES/ES.po:148-151
Timestamp: 2025-09-26T13:58:49.363Z
Learning: In the holidays project, when translating holiday names in .po files, the msgstr should be a faithful translation of the original msgid (in the country's default language), not influenced by English commentary or common en_US names. For example, "Día de la Pascua Granada" (Spanish) correctly translates to "Dia de la Pasqua Granada" (Catalan), even though the English comment refers to it as "Whit Monday".

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2402
File: holidays/countries/trinidad_and_tobago.py:75-76
Timestamp: 2025-04-05T09:44:39.998Z
Learning: In the holidays library, en_US locale is the standard for localization comments (using American English spelling like "Labor"), while the actual holiday names in code use the appropriate locale-specific spelling (like "Labour" for British English locales such as en_TT).

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2402
File: holidays/locale/en_TT/LC_MESSAGES/TT.po:46-48
Timestamp: 2025-04-05T08:12:19.986Z
Learning: In the holidays library, localization (PO) files follow this convention: comments (#.) always use American English (en_US) spelling, while the msgid content follows the locale-specific spelling standards of the target language.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2388
File: holidays/locale/en_CI/LC_MESSAGES/CI.po:88-88
Timestamp: 2025-03-30T18:25:07.087Z
Learning: In the holidays library, localization files have a specific structure: message comments are in standard English (en_US) describing the holiday, while actual translations (msgstr) should use the locale-specific terminology (e.g., en_CI for Ivory Coast English). For example, "Night of Power" in standard English is translated as "Lailatou-Kadr" in Ivory Coast English.

Learnt from: Harshil-Gupta
Repo: vacanza/holidays PR: 2704
File: holidays/countries/pitcairn_islands.py:26-31
Timestamp: 2025-07-10T21:08:23.709Z
Learning: British territories in the holidays library (like Falkland Islands and Pitcairn Islands) should use default_language = "en_GB" to reuse existing British English translations rather than creating territory-specific locale files like en_FK or en_PN.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2881
File: tests/countries/test_albania.py:40-42
Timestamp: 2025-09-04T08:54:35.319Z
Learning: In the vacanza/holidays project test files, extract holiday name strings to local variables only when they are reused multiple times within the same test method (e.g., used in both assertHolidayName and assertNoHolidayName calls). When a holiday name is used only once, keep it inline rather than extracting it to a variable for the sake of consistency.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2653
File: holidays/locale/th/LC_MESSAGES/TW.po:17-21
Timestamp: 2025-06-21T18:06:50.027Z
Learning: KJhellico's username includes a tilde character (~) as part of their nickname (appears as "~Jhellico" in Last-Translator headers), which is intentional formatting and not an error.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2684
File: holidays/locale/it/LC_MESSAGES/SM.po:13-13
Timestamp: 2025-06-28T10:39:19.185Z
Learning: In the holidays project, .po file header comments use the format "# [Country] holidays." for default language files (without trailing hash) and "# [Country] holidays [locale] localization." for non-default language files (also without trailing hash).

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2960
File: holidays/locale/ca/LC_MESSAGES/ES.po:148-151
Timestamp: 2025-09-26T13:58:49.363Z
Learning: In the holidays project, when translating holiday names in .po files, the msgstr should be a faithful translation of the original msgid (in the country's default language), not influenced by English commentary or common en_US names. For example, "Día de la Pascua Granada" (Spanish) correctly translates to "Dia de la Pasqua Granada" (Catalan), even though the English comment refers to it as "Whit Monday".

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2388
File: holidays/locale/en_CI/LC_MESSAGES/CI.po:88-88
Timestamp: 2025-03-30T18:25:07.087Z
Learning: In the holidays library, localization files have a specific structure: message comments are in standard English (en_US) describing the holiday, while actual translations (msgstr) should use the locale-specific terminology (e.g., en_CI for Ivory Coast English). For example, "Night of Power" in standard English is translated as "Lailatou-Kadr" in Ivory Coast English.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2676
File: holidays/locale/en_US/LC_MESSAGES/TN.po:17-28
Timestamp: 2025-06-26T15:34:35.476Z
Learning: In the holidays project, .po file header metadata updates (version numbers, revision dates, translator information) are legitimate changes when part of localization work and don't require `make l10n` regeneration. The `make l10n` command is primarily for formatting fixes and missing translator comments, not for intentional metadata updates.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2960
File: holidays/locale/ca/LC_MESSAGES/ES.po:97-100
Timestamp: 2025-09-26T13:44:12.652Z
Learning: When fixing localization issues in the holidays project, corrections should be made in both the Python source code comments and the en_US .po file msgstr entries, then all other language .po files should be regenerated to pick up the corrected en_US comments.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2854
File: holidays/locale/en_US/LC_MESSAGES/SD.po:38-42
Timestamp: 2025-08-25T22:19:01.342Z
Learning: In the holidays library, translator comments and translations should consistently use the "observed, estimated" order pattern. Guinea-Bissau (GW.po) was identified as having an inconsistent "estimated, observed" comment that needs to be fixed to match the established convention.

Learnt from: ankushhKapoor
Repo: vacanza/holidays PR: 2601
File: holidays/locale/en_MN/LC_MESSAGES/MN.po:13-14
Timestamp: 2025-06-11T18:32:25.595Z
Learning: For non-default locale `.po` files, the header comment format is:
`# <Country> holidays <locale> localization.` (no trailing hash).

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2944
File: holidays/countries/myanmar.py:108-111
Timestamp: 2025-09-17T15:53:16.940Z
Learning: In the holidays package, explanatory comments about year restrictions or policy context should be placed above conditional blocks or at method level, never directly above holiday name comments that precede tr() function calls, as this would include the explanatory text in .po localization files when running `make l10n`.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2438
File: holidays/locale/ar_IQ/LC_MESSAGES/IQ.po:35-81
Timestamp: 2025-04-17T17:08:48.082Z
Learning: In holiday PO files, when the file represents the default language of an entity (e.g., ar_IQ for Iraq), no translations in `msgstr` are required as the `msgid` values are already in the target language.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2537
File: holidays/countries/finland.py:249-253
Timestamp: 2025-05-10T04:02:13.815Z
Learning: Holiday name comments directly above tr() function calls in the holidays package should only contain the holiday name itself (e.g., "# Independence Day.") without any additional context, dates, or historical information.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2402
File: holidays/locale/en_TT/LC_MESSAGES/TT.po:46-48
Timestamp: 2025-04-05T08:12:19.986Z
Learning: In the holidays library, localization (PO) files follow this convention: comments (#.) always use American English (en_US) spelling, while the msgid content follows the locale-specific spelling standards of the target language.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2530
File: holidays/locale/ca/LC_MESSAGES/AD.po:31-40
Timestamp: 2025-05-06T15:25:44.333Z
Learning: In the Holidays project, msgid fields in localization files contain strings in the entity's default language (as defined by default_language attribute), not English source strings as in standard gettext implementations.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2676
File: holidays/locale/ar/LC_MESSAGES/EG.po:0-0
Timestamp: 2025-06-25T10:09:29.029Z
Learning: In the holidays library, msgstr fields can be left empty for source/default_language files when using Lingva, the localization tool used by the project.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2881
File: holidays/countries/south_africa.py:163-170
Timestamp: 2025-09-14T06:39:08.485Z
Learning: In South Africa's holidays implementation (holidays/countries/south_africa.py), the 2021 election uses the literal "Municipal elections" instead of the local_elections constant ("Local Government Elections") - this inconsistency is intentional and should not be flagged as an issue.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2608
File: tests/countries/test_saint_vincent_and_the_grenadines.py:162-178
Timestamp: 2025-07-02T18:21:59.302Z
Learning: In the Saint Vincent and the Grenadines holiday tests, for holidays without observed rules that only require a single assertHolidayName call, pass the holiday name directly as a string literal rather than storing it in a variable first for cleaner, more concise code.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2860
File: holidays/groups/eastern.py:36-36
Timestamp: 2025-08-28T02:34:11.657Z
Learning: The default estimated_label change from "%s (estimated)" to "%s" in holidays/groups/eastern.py is intentional to remove English-only fallback text from localized holiday names. Countries that need estimated labels should define them properly with localization support rather than relying on the English fallback.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2794
File: holidays/groups/christian.py:328-343
Timestamp: 2025-08-11T10:14:28.517Z
Learning: For Ethiopian holidays in the `holidays/groups/christian.py` file, docstring wording should maintain source-accurate phrasing (e.g., "in coincidence of" for Ethiopian New Year/Enkutatash), even when it might read awkwardly in English, to ensure consistency with official Ethiopian documentation.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2820
File: holidays/countries/__init__.py:199-203
Timestamp: 2025-08-31T19:34:20.731Z
Learning: In the Saint Helena, Ascension and Tristan da Cunha implementation, there's a discrepancy between the registry.py entry (which references "HolidaysSH") and the actual implementation (which only defines SaintHelenaAscensionAndTristanDaCunha, SH, SHN, and SaintHelenaAscensionAndTristanDaCunhaStaticHolidays classes). The HolidaysSH class doesn't exist and according to the maintainer isn't needed.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2706
File: holidays/countries/cayman_islands.py:80-97
Timestamp: 2025-07-10T03:36:16.461Z
Learning: In the holidays library, date dictionaries that map years to specific dates (like queens_birthday_dates, spring_bank_dates, thanksgiving_day_dates, etc.) are typically defined within the _populate_public_holidays method rather than as module-level constants. This is the established library-wide pattern seen across multiple country implementations including United Kingdom, United States, Sri Lanka, and others.

Learnt from: KJhellico
Repo: vacanza/holidays PR: 2944
File: holidays/countries/myanmar.py:183-191
Timestamp: 2025-09-17T15:16:16.192Z
Learning: The special_public_holidays formatting pattern in the holidays codebase follows a consistent convention: single entries per year use flat tuple format like `2024: (MONTH, DAY, name)`, while multiple entries per year use tuple-of-tuples format like `2024: ((MONTH, DAY, name), (MONTH, DAY, name))`. This pattern is used consistently across all countries.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2706
File: holidays/countries/cayman_islands.py:80-97
Timestamp: 2025-07-10T03:36:16.461Z
Learning: In the holidays library, date dictionaries that map years to specific dates (like queens_birthday_dates, special holiday dates, etc.) are typically defined within the _populate_public_holidays method rather than as module-level constants. This is the established library-wide pattern and should be maintained for consistency.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2354
File: holidays/countries/fiji.py:185-188
Timestamp: 2025-03-19T16:53:00.375Z
Learning: In the Fiji holidays implementation, the `special_public_holidays_observed` dictionary in `FijiStaticHolidays` is only used for exceptions to the normal observance rules, not for documenting all holidays. Only 2019's Constitution Day needed a special entry as it didn't follow the standard patterns.

Learnt from: PPsyrius
Repo: vacanza/holidays PR: 2354
File: holidays/countries/fiji.py:146-159
Timestamp: 2025-03-19T16:54:58.657Z
Learning: In the holidays library implementation, explicit holiday dates (like Diwali in Fiji) are only defined for historical years with official sources (2016-2025). Future dates beyond the explicitly defined range are automatically calculated by methods like `_add_diwali`, which provide approximations when official dates aren't yet available.