polars.exceptions.InvalidOperationError: file encoding is not UTF-8

[Holthuizen]

I first ran pip install -r requirements.txt in a new .venv
but when running python createMeasurements.py i get the following error:

Traceback (most recent call last):
File "D:\CodingProjecs\Python\1brc\createMeasurements.py", line 507, in
measurement.generate_measurement_file(
File "D:\CodingProjecs\Python\1brc\createMeasurements.py", line 463, in generate_measurement_file
data.write_csv(f, separator=sep, float_precision=1, include_header=False)
File "D:\CodingProjecs\Python\1brc.venv\Lib\site-packages\polars\dataframe\frame.py", line 2719, in write_csv
self._df.write_csv(
polars.exceptions.InvalidOperationError: file encoding is not UTF-8

[ifnesi]

Hi @Holthuizen, thank you. Please pull the latest commit and try again. There were a PR open to fix that and I didn't merge it until now. The problem was when opening the measurement file to write to it the encoding was not set to UTF-8.