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"""
The most atomic way to train and run inference for a GPT in pure, dependency-free Python.
This file is the complete algorithm.
Everything else is just efficiency.
@karpathy
"""
import os # os.path.exists
import math # math.log, math.exp
@joshlk
joshlk / faster_toPandas.py
Last active September 19, 2025 16:11
PySpark faster toPandas using mapPartitions
import pandas as pd
def _map_to_pandas(rdds):
""" Needs to be here due to pickling issues """
return [pd.DataFrame(list(rdds))]
def toPandas(df, n_partitions=None):
"""
Returns the contents of `df` as a local `pandas.DataFrame` in a speedy fashion. The DataFrame is
repartitioned if `n_partitions` is passed.