Remove date_ticker_factory

oscargus · oscargus · commit 99acf479afd5 · 2023-01-16T10:50:41.000+01:00
diff --git a/lib/matplotlib/dates.py b/lib/matplotlib/dates.py
@@ -172,7 +172,6 @@
 import datetime
 import functools
 import logging
-import math
 import re
 
 from dateutil.rrule import (rrule, MO, TU, WE, TH, FR, SA, SU, YEARLY,
@@ -1779,50 +1778,6 @@ def _get_interval(self):
         return self._interval
 
 
-@_api.deprecated("3.6", alternative="`AutoDateLocator` and `AutoDateFormatter`"
-                 " or vendor the code")
-def date_ticker_factory(span, tz=None, numticks=5):
-    """
-    Create a date locator with *numticks* (approx) and a date formatter
-    for *span* in days.  Return value is (locator, formatter).
-    """
-
-    if span == 0:
-        span = 1 / HOURS_PER_DAY
-
-    mins = span * MINUTES_PER_DAY
-    hrs = span * HOURS_PER_DAY
-    days = span
-    wks = span / DAYS_PER_WEEK
-    months = span / DAYS_PER_MONTH      # Approx
-    years = span / DAYS_PER_YEAR        # Approx
-
-    if years > numticks:
-        locator = YearLocator(int(years / numticks), tz=tz)  # define
-        fmt = '%Y'
-    elif months > numticks:
-        locator = MonthLocator(tz=tz)
-        fmt = '%b %Y'
-    elif wks > numticks:
-        locator = WeekdayLocator(tz=tz)
-        fmt = '%a, %b %d'
-    elif days > numticks:
-        locator = DayLocator(interval=math.ceil(days / numticks), tz=tz)
-        fmt = '%b %d'
-    elif hrs > numticks:
-        locator = HourLocator(interval=math.ceil(hrs / numticks), tz=tz)
-        fmt = '%H:%M\n%b %d'
-    elif mins > numticks:
-        locator = MinuteLocator(interval=math.ceil(mins / numticks), tz=tz)
-        fmt = '%H:%M:%S'
-    else:
-        locator = MinuteLocator(tz=tz)
-        fmt = '%H:%M:%S'
-
-    formatter = DateFormatter(fmt, tz=tz)
-    return locator, formatter
-
-
 class DateConverter(units.ConversionInterface):
     """
     Converter for `datetime.date` and `datetime.datetime` data, or for
diff --git a/lib/matplotlib/tests/test_dates.py b/lib/matplotlib/tests/test_dates.py
@@ -1350,19 +1350,6 @@ def test_concise_formatter_call():
     assert formatter.format_data_short(19002.0) == '2022-01-10 00:00:00'
 
 
-@pytest.mark.parametrize('span, expected_locator',
-                         ((0.02, mdates.MinuteLocator),
-                          (1, mdates.HourLocator),
-                          (19, mdates.DayLocator),
-                          (40, mdates.WeekdayLocator),
-                          (200, mdates.MonthLocator),
-                          (2000, mdates.YearLocator)))
-def test_date_ticker_factory(span, expected_locator):
-    with pytest.warns(_api.MatplotlibDeprecationWarning):
-        locator, _ = mdates.date_ticker_factory(span)
-        assert isinstance(locator, expected_locator)
-
-
 def test_datetime_masked():
     # make sure that all-masked data falls back to the viewlim
     # set in convert.axisinfo....
