how to check if something is in a dictionary python code example

Example 1: python check if key exists

# You can use 'in' on a dictionary to check if a key exists
d = {"key1": 10, "key2": 23}
"key1" in d
# Output:
# True

Example 2: how to know if a key is in a dictionary python

dict = {"key1": 1, "key2": 2}

if "key1" in dict:

Example 3: how to check if a key is present in python dictionary

dict = { "How":1,"you":2,"like":3,"this":4}
key = "this"
if key in dict.keys():
    print("present")
    print("value =",dict[key])
else:
    print("Not present")

Example 4: python check if key exists

d = {"apples": 1, "banannas": 4}
# Preferably use .keys() when searching for a key
if "apples" in d.keys():
  print(d["apples"])

Example 5: python how to check if a dictionary key exists

if word in data:
  return data[word]
else:
  return "The word doesn't exist. Please double check it."

Example 6: python dictionary contains key

if key in dictionary:
  print(True)