#!/usr/bin/env python
# coding: utf-8

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get_ipython().run_line_magic('load_ext', 'autoreload')
get_ipython().run_line_magic('autoreload', '2')


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import polars as pl
df = pl.scan_csv('./bike_sharing_dc.csv', try_parse_dates = True)
strange_name = f"{''.join(chr(i) for i in range(1, 256))}"
df = df.select([
    pl.col("date").alias(strange_name),
    pl.col("*")
])
df = df.fetch(10)
df = df.with_columns( [
    pl.lit(df["holiday"].set_at_idx(1,strange_name)),
])
df


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import pygwalker as pyg
pyg.walk(df)


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