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Fix: Update return type of read_folder #10

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Fix: Update return type of read_folder #10

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677e7a2
Fix return type of read_folder function
ASR134 Jan 12, 2026
2df3421
Apply suggestion from @Copilot
ASR134 Jan 12, 2026
1a7a9e4
Merge branch 'main' into fix-read-folder-return-type
ASR134 Sep 21, 2026
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21 changes: 3 additions & 18 deletions dskit/io.py
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Original file line number Diff line number Diff line change
Expand Up @@ -29,23 +29,8 @@ def load(filepath):

def read_folder(folder_path:str, file_type:str='csv',dynamic:bool=False,display_ignored:bool=False):
"""
Load and concatenate tabular files from a folder.
Parameters
----------
folder_path : str
Path to the directory containing the files to be loaded.

file_type : str, default='csv'
File extension to filter files when `dynamic=False`.
Example: 'csv', 'xlsx', 'parquet'.

dynamic : bool, default=False
If True, loads all files regardless of extension.
If False, only files matching `file_type` are loaded.

display_ignored : bool, default=False
If True, prints the list of files that were skipped
because they could not be loaded by the `load()` function.
Load multiple files from a folder and return
a list of pandas DataFrames.
"""
if not os.path.exists(folder_path):
raise FileNotFoundError(f"The folder '{folder_path}' was not found.")
Expand All @@ -71,7 +56,7 @@ def read_folder(folder_path:str, file_type:str='csv',dynamic:bool=False,display_
if display_ignored:
print("Ignored Files : ","\n".join(ignored))
if df_list:
return pd.concat(df_list, ignore_index=True)
return df_list
else:
return None

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