FM / methods

/usr/local/lib64/python3.6/site-packages/pandas/tests/frame/methods/

/usr/local/lib64/python3.6/site-packages/pandas/tests/frame/methods

Name	Size	Mode	Actions
__pycache__/	-	0755	rm
test_align.py	10339	0644	edit dl rm
test_append.py	7399	0644	edit dl rm
test_asfreq.py	1970	0644	edit dl rm
test_asof.py	5767	0644	edit dl rm
test_assign.py	2982	0644	edit dl rm
test_astype.py	21027	0644	edit dl rm
test_at_time.py	3205	0644	edit dl rm
test_between_time.py	3675	0644	edit dl rm
test_clip.py	6028	0644	edit dl rm
test_combine.py	1359	0644	edit dl rm
test_combine_first.py	12748	0644	edit dl rm
test_compare.py	6158	0644	edit dl rm
test_count.py	1068	0644	edit dl rm
test_cov_corr.py	11888	0644	edit dl rm
test_describe.py	12492	0644	edit dl rm
test_diff.py	7374	0644	edit dl rm
test_drop.py	15662	0644	edit dl rm
test_droplevel.py	855	0644	edit dl rm
test_drop_duplicates.py	13387	0644	edit dl rm
test_duplicated.py	3191	0644	edit dl rm
test_explode.py	5294	0644	edit dl rm
test_filter.py	4933	0644	edit dl rm
test_first_and_last.py	1803	0644	edit dl rm
test_head_tail.py	1194	0644	edit dl rm
test_interpolate.py	11816	0644	edit dl rm
test_isin.py	7324	0644	edit dl rm
test_nlargest.py	6731	0644	edit dl rm
test_pct_change.py	3436	0644	edit dl rm
test_pop.py	1226	0644	edit dl rm
test_quantile.py	18028	0644	edit dl rm
test_rank.py	11377	0644	edit dl rm
test_reindex_like.py	1187	0644	edit dl rm
test_rename.py	12543	0644	edit dl rm
test_rename_axis.py	4074	0644	edit dl rm
test_replace.py	59230	0644	edit dl rm
test_reset_index.py	12506	0644	edit dl rm
test_round.py	7916	0644	edit dl rm
test_select_dtypes.py	12104	0644	edit dl rm
test_set_index.py	19571	0644	edit dl rm
test_shift.py	10324	0644	edit dl rm
test_sort_index.py	25678	0644	edit dl rm
test_sort_values.py	25358	0644	edit dl rm
test_to_dict.py	9989	0644	edit dl rm
test_to_period.py	984	0644	edit dl rm
test_to_records.py	13981	0644	edit dl rm
test_to_timestamp.py	4020	0644	edit dl rm
test_transpose.py	2426	0644	edit dl rm
test_truncate.py	4180	0644	edit dl rm
test_tz_convert.py	3415	0644	edit dl rm
test_tz_localize.py	666	0644	edit dl rm
test_update.py	4259	0644	edit dl rm
test_value_counts.py	2631	0644	edit dl rm
__init__.py	229	0644	edit dl rm

Edit: /usr/local/lib64/python3.6/site-packages/pandas/tests/frame/methods/test_first_and_last.py (1803B)

"""
Note: includes tests for `last`
"""
import pytest

from pandas import DataFrame
import pandas._testing as tm

class TestFirst:
    def test_first_subset(self):
        ts = tm.makeTimeDataFrame(freq="12h")
        result = ts.first("10d")
        assert len(result) == 20

ts = tm.makeTimeDataFrame(freq="D")
        result = ts.first("10d")
        assert len(result) == 10

result = ts.first("3M")
        expected = ts[:"3/31/2000"]
        tm.assert_frame_equal(result, expected)

result = ts.first("21D")
        expected = ts[:21]
        tm.assert_frame_equal(result, expected)

result = ts[:0].first("3M")
        tm.assert_frame_equal(result, ts[:0])

def test_first_raises(self):
        # GH#20725
        df = DataFrame([[1, 2, 3], [4, 5, 6]])
        msg = "'first' only supports a DatetimeIndex index"
        with pytest.raises(TypeError, match=msg):  # index is not a DatetimeIndex
            df.first("1D")

def test_last_subset(self):
        ts = tm.makeTimeDataFrame(freq="12h")
        result = ts.last("10d")
        assert len(result) == 20

ts = tm.makeTimeDataFrame(nper=30, freq="D")
        result = ts.last("10d")
        assert len(result) == 10

result = ts.last("21D")
        expected = ts["2000-01-10":]
        tm.assert_frame_equal(result, expected)

result = ts.last("21D")
        expected = ts[-21:]
        tm.assert_frame_equal(result, expected)

result = ts[:0].last("3M")
        tm.assert_frame_equal(result, ts[:0])

def test_last_raises(self):
        # GH20725
        df = DataFrame([[1, 2, 3], [4, 5, 6]])
        msg = "'last' only supports a DatetimeIndex index"
        with pytest.raises(TypeError, match=msg):  # index is not a DatetimeIndex
            df.last("1D")

cmd: