import datetime

import numpy as np
import matplotlib.pyplot as plt


np.random.seed(19680801)

basedate_x = datetime.datetime(2023, 12, 6, 1, 30, 30)
basedate_y = datetime.datetime(2024, 5, 5, 12, 15, 45)
dates_x = [basedate_x + datetime.timedelta(days=1*i, hours=6*i, minutes=20*i)
           for i in range(10)]
dates_y = [basedate_y + datetime.timedelta(days=1*i, hours=8*i, minutes=30*i)
           for i in range(10)]

data = np.random.rand(0, 100)

fig, ax = plt.subplots()
pc = ax.pcolorfast(dates_x, dates_y, data)

Traceback (most recent call last):
  File "/home/elliott/code/matplotlib/pcolorfast.py", line 19, in <module>
    pc = ax.pcolorfast(dates_x, dates_y, data)
  File "/home/elliott/code/matplotlib/lib/matplotlib/__init__.py", line 1472, in inner
    return func(
  File "/home/elliott/code/matplotlib/lib/matplotlib/axes/_axes.py", line 6527, in pcolorfast
    self.update_datalim(np.array([[xl, yb], [xr, yt]]))
  File "/home/elliott/code/matplotlib/lib/matplotlib/axes/_base.py", line 2503, in update_datalim
    if not np.any(np.isfinite(xys)):
TypeError: ufunc 'isfinite' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe''