[Solved] Identify the error in this code that prevents hover labels from showing:import matplotlib.pyplot as plt import mplcursors fig, ax = plt.subplots() line, = ax.plot([1, 2, 3], [4, 5, 6]) mplcursors.... | Matplotlib

Matplotlib - Interactive Features

Identify the error in this code that prevents hover labels from showing:

import matplotlib.pyplot as plt
import mplcursors

fig, ax = plt.subplots()
line, = ax.plot([1, 2, 3], [4, 5, 6])
mplcursors.cursor(line)
plt.show()

AThe variable 'line' should be a list, not a single Line2D object

BThe plot command is missing marker style to show points

Cmplcursors is not imported correctly

Dmplcursors.cursor() must be called before plotting

Step-by-Step Solution

Solution:

Step 1: Analyze plot and cursor usage
The code plots a line without markers. Hover labels appear on points, but here points are not visible because no markers are set.
Step 2: Identify why hover labels don't show
mplcursors works on plotted points. Without markers, the line is continuous and no discrete points exist to hover on, so labels don't appear.
Final Answer:
The plot command is missing marker style to show points -> Option B
Quick Check:
Missing markers = no hover labels [OK]

Quick Trick: Add markers to plot for mplcursors hover labels [OK]

Common Mistakes:

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