Add --encoding to csv2numbers

pyproject.toml

@@ -12,7 +12,7 @@ name = "numbers-parser"
 packages = [{include = "numbers_parser", from = "src"}]
 readme = "README.md"
 repository = "https://github.com/masaccio/numbers-parser"
-version = "4.13.2"
+version = "4.13.3"
 
 [tool.poetry.scripts]
 cat-numbers = "numbers_parser._cat_numbers:main"

src/numbers_parser/_csv2numbers.py

@@ -33,6 +33,7 @@ class Converter:
     no_header: bool = False
     reverse: bool = False
     whitespace: bool = None
+    encoding: str = "utf-8"
 
     def __post_init__(self: Converter) -> None:
         """Parse CSV file with Pandas and return a dataframe."""
@@ -45,7 +46,7 @@ def _read_csv(self) -> None:
             dialect = csv.excel
             dialect.strict = True
             lineno = 1
-            with open(self.input_filename) as csvfile:
+            with open(self.input_filename, encoding=self.encoding) as csvfile:
                 csvreader = csv.reader(csvfile, dialect=dialect)
                 if self.no_header:
                     self.header = None
@@ -333,6 +334,12 @@ def command_line_parser() -> argparse.ArgumentParser:
         action="store_true",
         help="dates are represented day first in the CSV file (default: false)",
     )
+    parser.add_argument(
+        "--encoding",
+        required=False,
+        default="utf-8",
+        help="python-style text encoding of the CSV file (default: utf-8)",
+    )
     parser.add_argument(
         "--date",
         metavar="COLUMNS",
@@ -400,6 +407,7 @@ def main() -> None:
                 date_columns=args.date,
                 input_filename=input_filename,
                 output_filename=output_filename,
+                encoding=args.encoding,
             )
 
             converter.transform_columns(args.transform)