human
get value by key with default.
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Here is a Python function to get value by key with default value of 0. Here is python function to get the value by key

import math

def get_value_by_key(dictionary, key, default):
  """get value by key with default"""
  if key in dictionary:
    return dictionary[key]
  else:
    return default

# Enter the dictionary
dictionary = {"key1": "value1", "key2": "value2"}

# Enter the key
key = "key1"

# Enter the default
default = "default"

# Calling the function
print((get_value_by_key(dictionary, key, default)))

#Example Output
# value1

#Remember to inspect code for bugs.