feat: add sep choice for output

README.md

@@ -181,7 +181,7 @@ docker build -t data-selector .
 Once built, you can run the container locally with the following command line:
 
 ```sh
-docker run -ti --rm -v <your_path>:/DATA data-selector select_cli  -i DATA/<your_file> -o DATA/<out_name> -f -S <path_to_select_param> -D <path_to_delete_param> -sD <path_to_select_data_param>
+docker run -ti --rm -v <your_path>:/DATA data-selector select_cli  -i DATA/<your_file> -o DATA/<out_name> -f -s <file_sep> -S <path_to_select_param> -D <path_to_delete_param> -sD <path_to_select_data_param>
 ```
 
 -v allows to mount a volume and to use your local data on the docker environment.
@@ -192,6 +192,8 @@ docker run -ti --rm -v <your_path>:/DATA data-selector select_cli  -i DATA/<your
 
 **out_name**: The name you want to give to the output file.
 
+**file_sep**: File separator of the output file.
+
 **path_to_select_param**: Path towards json parametrization file.
 
 **path_to_delete_param**: Path towards json parametrization file.

src/data_selector/cli.py

@@ -58,6 +58,15 @@ def version():
     default='csv',
     help="File format of the output (csv, json).",
 )
+@click.option(
+    "-s",
+    "--file_sep",
+    "file_sep",
+    type=str,
+    required=False,
+    default=',',
+    help="File separator (csv).",
+)
 @click.option(
     "-S",
     "--select",
@@ -91,6 +100,7 @@ def select_cli(
     path_columns_to_keep: str,
     path_columns_to_delete: str,
     path_to_data_and_columns: str,
+    file_sep: str,
     data_frame=None
 ):
     """Start service to select Data to Keep/Delete"""
@@ -103,6 +113,7 @@ def select_cli(
         path_columns_to_keep,
         path_columns_to_delete,
         path_to_data_and_columns,
+        file_sep,
         data_frame
     )
 

src/data_selector/selector.py

@@ -15,6 +15,7 @@ def select(
     path_columns_to_keep=None,
     path_columns_to_delete=None,
     path_to_data_and_columns=None,
+    file_sep=',',
     data_frame=None
 ) -> None:
     """Documentation:
@@ -32,7 +33,7 @@ def select(
         with open(path_columns_to_keep) as d:
             param_dict = json.load(d)
             list_col_names: list[str] = [value for value in param_dict['column_names'].values()]
-            data_frame = data_frame.reindex(columns=list_col_names)
+            data_frame = select_column(data_frame, list_col_names)
 
     if path_columns_to_delete is not None:
 
@@ -53,7 +54,8 @@ def select(
         output_file,
         overwrite,
         format_choice,
-        input_format
+        input_format,
+        file_sep
     )
 
 
@@ -62,7 +64,8 @@ def save(
     output_file: str,
     overwrite: bool,
     format_choice=None,
-    input_format=None
+    input_format=None,
+    file_sep=','
 ) -> None:
     """Documentation:
         inputs:
@@ -76,7 +79,7 @@ def save(
             format_choice = input_format
 
         if format_choice == "csv":
-            data_frame.to_csv(output_file, index=False, sep=";")
+            data_frame.to_csv(output_file, index=False, sep=file_sep)
             print("File has been saved. End of the service.")
 
         elif format_choice == "json":
@@ -111,8 +114,11 @@ def delete_column(
     returns the new DataFrame.
     """
 
-    df_res: df = data_frame.drop(columns=List_of_columns)
-    return df_res
+    try:
+        df_res: df = data_frame.drop(columns=List_of_columns)
+        return df_res
+    except KeyError as ke:
+        raise KeyError("KeyError : " + str(ke))
 
 
 def select_column(