Skip to content

BUG: multi-index HDFStore data_columns=True #14791

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 1 commit into from
Closed

BUG: multi-index HDFStore data_columns=True #14791

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion doc/source/whatsnew/v0.19.2.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,7 @@ Bug Fixes




- Bug ``HDFStore`` writing a ``MultiIndex`` when using ``data_columns=True`` (:issue:`14435`)


- Bug in clipboard functions on linux with python2 with unicode and separators (:issue:`13747`)
Expand Down
2 changes: 1 addition & 1 deletion pandas/io/pytables.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4254,7 +4254,7 @@ def write(self, obj, data_columns=None, **kwargs):
if data_columns is None:
data_columns = []
elif data_columns is True:
data_columns = obj.columns[:]
data_columns = obj.columns.tolist()
obj, self.levels = self.validate_multiindex(obj)
for n in self.levels:
if n not in data_columns:
Expand Down
13 changes: 13 additions & 0 deletions pandas/io/tests/test_pytables.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1818,6 +1818,19 @@ def test_select_columns_in_where(self):
store.put('s', s, format='table')
tm.assert_series_equal(store.select('s', where="columns=['A']"), s)

def test_mi_data_columns(self):
# GH 14435
idx = pd.MultiIndex.from_arrays([date_range('2000-01-01', periods=5),
range(5)], names=['date', 'id'])
df = pd.DataFrame({'a': [1.1, 1.2, 1.3, 1.4, 1.5]}, index=idx)

with ensure_clean_store(self.path) as store:
store.append('df', df, data_columns=True)

actual = store.select('df', where='id == 1')
expected = df.iloc[[1], :]
tm.assert_frame_equal(actual, expected)

def test_pass_spec_to_storer(self):

df = tm.makeDataFrame()
Expand Down