find the standard deviation of all keys in a map in python

You can calculate the standard deviation of all the keys in a map in Python by first extracting the keys from the map and then using the statistics module to compute the standard deviation.

Here's an example with comments to explain the steps:

main.py
import statistics

# Create a dictionary
my_map = {'key1': 10, 'key2': 20, 'key3': 30, 'key4': 40}

# Extract the keys into a list
keys = list(my_map.keys())

# Compute the standard deviation of the keys
std_dev = statistics.stdev(keys)

# Print the result
print("Standard deviation of keys:", std_dev)
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In this example, we create a dictionary called my_map and fill it with key-value pairs. Then, we use the keys() method to extract the keys from the dictionary and convert them to a list. Finally, we pass this list to the statistics.stdev() function to compute the standard deviation of the keys. The final result is printed to the console.