/usr/local/lib64/python3.6/site-packages/pandas/tests/series/methods
Edit: /usr/local/lib64/python3.6/site-packages/pandas/tests/series/methods/test_rename.py (3378B)
from datetime import datetime
import numpy as np
from pandas import Index, Series
import pandas._testing as tm
class TestRename:
def test_rename(self, datetime_series):
ts = datetime_series
renamer = lambda x: x.strftime("%Y%m%d")
renamed = ts.rename(renamer)
assert renamed.index[0] == renamer(ts.index[0])
# dict
rename_dict = dict(zip(ts.index, renamed.index))
renamed2 = ts.rename(rename_dict)
tm.assert_series_equal(renamed, renamed2)
# partial dict
s = Series(np.arange(4), index=["a", "b", "c", "d"], dtype="int64")
renamed = s.rename({"b": "foo", "d": "bar"})
tm.assert_index_equal(renamed.index, Index(["a", "foo", "c", "bar"]))
# index with name
renamer = Series(
np.arange(4), index=Index(["a", "b", "c", "d"], name="name"), dtype="int64"
)
renamed = renamer.rename({})
assert renamed.index.name == renamer.index.name
def test_rename_by_series(self):
s = Series(range(5), name="foo")
renamer = Series({1: 10, 2: 20})
result = s.rename(renamer)
expected = Series(range(5), index=[0, 10, 20, 3, 4], name="foo")
tm.assert_series_equal(result, expected)
def test_rename_set_name(self):
s = Series(range(4), index=list("abcd"))
for name in ["foo", 123, 123.0, datetime(2001, 11, 11), ("foo",)]:
result = s.rename(name)
assert result.name == name
tm.assert_numpy_array_equal(result.index.values, s.index.values)
assert s.name is None
def test_rename_set_name_inplace(self):
s = Series(range(3), index=list("abc"))
for name in ["foo", 123, 123.0, datetime(2001, 11, 11), ("foo",)]:
s.rename(name, inplace=True)
assert s.name == name
exp = np.array(["a", "b", "c"], dtype=np.object_)
tm.assert_numpy_array_equal(s.index.values, exp)
def test_rename_axis_supported(self):
# Supporting axis for compatibility, detailed in GH-18589
s = Series(range(5))
s.rename({}, axis=0)
s.rename({}, axis="index")
# FIXME: dont leave commenred-out
# TODO: clean up shared index validation
# with pytest.raises(ValueError, match="No axis named 5"):
# s.rename({}, axis=5)
def test_rename_inplace(self, datetime_series):
renamer = lambda x: x.strftime("%Y%m%d")
expected = renamer(datetime_series.index[0])
datetime_series.rename(renamer, inplace=True)
assert datetime_series.index[0] == expected
def test_rename_with_custom_indexer(self):
# GH 27814
class MyIndexer:
pass
ix = MyIndexer()
s = Series([1, 2, 3]).rename(ix)
assert s.name is ix
def test_rename_with_custom_indexer_inplace(self):
# GH 27814
class MyIndexer:
pass
ix = MyIndexer()
s = Series([1, 2, 3])
s.rename(ix, inplace=True)
assert s.name is ix
def test_rename_callable(self):
# GH 17407
s = Series(range(1, 6), index=Index(range(2, 7), name="IntIndex"))
result = s.rename(str)
expected = s.rename(lambda i: str(i))
tm.assert_series_equal(result, expected)
assert result.name == expected.name