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Identify the error in this code snippet:

medium📝 Debug Q6 of 15
Matplotlib - Real-World Visualization Patterns
Identify the error in this code snippet:
import matplotlib.pyplot as plt
plt.plot([1,2,3], [4,5,6])
plt.annotate('Point', xytext=(2,5), xy=(2,5))
plt.show()
AMissing arrowprops dictionary to show arrow
Bxy and xytext coordinates are the same, so arrow won't be visible
CThe order of xy and xytext parameters is incorrect
DNo error, code runs fine
Step-by-Step Solution
Solution:
  1. Step 1: Check annotate parameters

    The code provides xy and xytext but lacks arrowprops, which is necessary to draw an arrow between the text position and the annotated point.
  2. Step 2: Understand arrow drawing

    Without the arrowprops dictionary, no arrow appears regardless of the coordinates.
  3. Final Answer:

    Missing arrowprops dictionary to show arrow -> Option A
  4. Quick Check:

    Missing arrowprops = no arrow [OK]
Quick Trick: arrowprops=dict(arrowstyle='->') required to draw arrow [OK]
Common Mistakes:
  • Thinking parameter order matters
  • Believing xy and xytext alone draw arrow
  • Focusing on overlapping coordinates

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