You can set the figure size in Seaborn with the following code. I highly recommend you “Python Crash Course Book” to learn Python.
# Import the required libraries
import seaborn as sns
from matplotlib import pyplot as plt
# Load the iris Dataset
iris = sns.load_dataset("iris")
# Set Figure Size
plt.figure(figsize=(5,10))
# Plot the Histogram
sns.histplot(data=iris, x="petal_length")
