import numpy as np
import pandas as pd
import proplot as plot

rng = np.random.default_rng()
x = rng.standard_normal(500)
x = pd.DataFrame(x, columns=['col'])

f = 'test.csv'
x.to_csv(f)
x1 = pd.read_csv(f, index_col=0)
fig, ax = plot.subplots()
ax.hist(x1.col.values)
plot.show()

import matplotlib.pyplot as plt
fig, ax = plt.subplots()
ax.hist(x1.col.values)