Add tests to cover Finnish dates with 'klo' (#1301)

serhii73 · web-flow · commit f0f9102771e2 · 2026-01-23T14:08:35.000+01:00
* Add tests to cover Finnish dates with 'klo'

* Add Finnish "klo" (o'clock) to skip tokens and add translation test

- Add "klo" to skip tokens in Finnish language data files
  - Modified: dateparser/data/date_translation_data/fi.py
  - Modified: dateparser_data/supplementary_language_data/date_translation_data/fi.yaml
- Add translation test case for Finnish dates with "klo"
  - Modified: tests/test_languages.py

This fixes parsing of Finnish dates like "28 maalis klo 9:37" (March 28 at 9:37).
The word "klo" (abbreviation for "kello", meaning "o'clock") is now properly
skipped during tokenization, allowing correct date parsing.
diff --git a/dateparser/data/date_translation_data/fi.py b/dateparser/data/date_translation_data/fi.py
@@ -316,6 +316,7 @@
     "locale_specific": {},
     "skip": [
         ":n",
+        "klo",
         " ",
         "'",
         ",",
diff --git a/dateparser_data/supplementary_language_data/date_translation_data/fi.yaml b/dateparser_data/supplementary_language_data/date_translation_data/fi.yaml
@@ -1,4 +1,4 @@
-skip: [":n"]
+skip: [":n", "klo"]
 
 sentence_splitter_group : 1
 
diff --git a/tests/test_date_parser.py b/tests/test_date_parser.py
@@ -214,6 +214,11 @@ def setUp(self):
             # Finnish dates
             param("5.7.2018 5.45 ip.", datetime(2018, 7, 5, 17, 45)),
             param("5 .7 .2018 5.45 ip.", datetime(2018, 7, 5, 17, 45)),
+            param("28 maalis klo 9:37", datetime(2012, 3, 28, 9, 37)),
+            param("28 maalis 9:37", datetime(2012, 3, 28, 9, 37)),
+            param("15 tammi klo 14:30", datetime(2012, 1, 15, 14, 30)),
+            param("5 kesä klo 18:00", datetime(2012, 6, 5, 18, 0)),
+            param("12.5.2020 klo 16:45", datetime(2020, 5, 12, 16, 45)),
             # Croatian dates
             param("06. travnja 2021.", datetime(2021, 4, 6, 0, 0)),
             param("13. svibanj 2022.", datetime(2022, 5, 13, 0, 0)),
diff --git a/tests/test_languages.py b/tests/test_languages.py
@@ -214,6 +214,7 @@ def setUp(self):
             param("fi", "su joulu 16, 2015", "sunday december 16 2015"),
             param("fi", "1. tammikuuta, 2016", "1. january 2016"),
             param("fi", "tiistaina, 27. lokakuuta 2015", "tuesday 27. october 2015"),
+            param("fi", "28 maalis klo 9:37", "28 march  9:37"),
             # Japanese
             param("ja", "午後3時", "pm 3:00"),
             param("ja", "2時", "2:00"),

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-skip: [":n"]`
	`1`	`+skip: [":n", "klo"]`
`2`	`2`
`3`	`3`	`sentence_splitter_group : 1`
`4`	`4`