Barplot + Angle

bar_angle.py

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(0, 2, 10)
y = np.linspace(2, 0, 10)
err = 0.1 + np.random.rand(len(x)) * 0.3
angle = np.random.rand(len(x)) * np.pi / 3

plt.figure(figsize=(2, 2), dpi=300)
for i in range(len(x)):
    dx = err[i] * np.cos(angle[i])
    dy = err[i] * np.sin(angle[i])
    plt.plot([x[i], x[i] + dx], [y[i], y[i] + dy], "k", linewidth=1)
    plt.plot([x[i], x[i] - dx], [y[i], y[i] - dy], "k", linewidth=1)
    
plt.plot(x, y, "ok", markersize=5)

Result