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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")
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# You can use 'in' on a dictionary to check if a key exists
d = {"key1": 10, "key2": 23}
"key1" in d
# Output:
# True
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>>> d = {'1': 'one', '3': 'three', '2': 'two', '5': 'five', '4': 'four'}
>>> 'one' in d.values()
True
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d = {"apples": 1, "banannas": 4}
# Preferably use .keys() when searching for a key
if "apples" in d.keys():
print(d["apples"])
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val = dict.get(key , defVal) # defVal is a default value if key does not exist
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if word in data:
return data[word]
else:
return "The word doesn't exist. Please double check it."
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# python check if value exist in dict using "in" & values()
if value in word_freq.values():
print(f"Yes, Value: '{value}' exists in dictionary")
else:
print(f"No, Value: '{value}' does not exists in dictionary")
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# Dictionary
my_dict = {"apple": 1, "banana": 2, "orange": 3}
# Method 1: Using the "in" operator
if "apple" in my_dict:
print("Key 'apple' exists in the dictionary")
else:
print("Key 'apple' does not exist in the dictionary")
# Method 2: Using the get() method
if my_dict.get("banana"):
print("Key 'banana' exists in the dictionary")
else:
print("Key 'banana' does not exist in the dictionary")
# Method 3: Using the keys() method
if "orange" in my_dict.keys():
print("Key 'orange' exists in the dictionary")
else:
print("Key 'orange' does not exist in the dictionary")