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feat: Explicitly throw UnknownColumnNameError in TaggedTable._from_table #334

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Merged
zzril merged 5 commits into from
Jun 9, 2023
Merged

feat: Explicitly throw UnknownColumnNameError in TaggedTable._from_table #334

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d156dc2
Explicitely throw UnknownColumnNameError
zzril May 29, 2023
363ec0f
Merge branch 'main' into 333-argument-validation-and-documentation-of…
zzril Jun 1, 2023
8de9f77
Merge branch 'main' into 333-argument-validation-and-documentation-of…
Marsmaennchen221 Jun 2, 2023
b7e1537
Merge branch 'main' into 333-argument-validation-and-documentation-of…
zzril Jun 6, 2023
57c752d
Merge branch 'main' into 333-argument-validation-and-documentation-of…
zzril Jun 7, 2023
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9 changes: 7 additions & 2 deletions src/safeds/data/tabular/containers/_tagged_table.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
from typing import TYPE_CHECKING

from safeds.data.tabular.containers import Column, Table
from safeds.exceptions import UnknownColumnNameError

if TYPE_CHECKING:
from collections.abc import Mapping, Sequence
Expand Down Expand Up @@ -67,6 +68,8 @@ def _from_table(

Raises
------
UnknownColumnNameError
If target_name matches none of the column names.
ValueError
If the target column is also a feature column.
ValueError
Expand All @@ -78,11 +81,13 @@ def _from_table(
>>> table = Table({"col1": ["a", "b", "c", "a"], "col2": [1, 2, 3, 4]})
>>> tagged_table = TaggedTable._from_table(table, "col2", ["col1"])
"""
if target_name not in table.column_names:
raise UnknownColumnNameError([target_name])

# If no feature names are specified, use all columns except the target column
if feature_names is None:
feature_names = table.column_names
if target_name in feature_names:
feature_names.remove(target_name)
feature_names.remove(target_name)

# Validate inputs
if target_name in feature_names:
Expand Down