how to get the key for a value in a dictionary in python
# function to return key for any value
def get_key(val):
for key, value in my_dict.items():
if val == value:
return key
return "key doesn't exist"
# Driver Code
my_dict ={"java":100, "python":112, "c":11}
print(get_key(100))
print(get_key(11))python get dictionary keys
# To get all the keys of a dictionary use 'keys()'
newdict = {1:0, 2:0, 3:0}
newdict.keys()
# Output:
# dict_keys([1, 2, 3])get() python
# The get() method on dicts
# and its "default" argument
name_for_userid = {
382: "Alice",
590: "Bob",
951: "Dilbert",
}
def greeting(userid):
return "Hi %s!" % name_for_userid.get(userid, "there")
>>> greeting(382)
"Hi Alice!"
>>> greeting(333333)
"Hi there!"
'''When "get()" is called it checks if the given key exists in the dict.
If it does exist, the value for that key is returned.
If it does not exist then the value of the default argument is returned instead.
'''
# transferred by @ebdeuslave
# From Dan Bader - realpython.comdict ;get a key of a value
myDict={"name":"PythonForBeginners","acronym":"PFB"}
print("Dictionary is:")
print(myDict)
dict_items=myDict.items()
print("Given value is:")
myValue="PFB"
print(myValue)
print("Associated Key is:")
for key,value in dict_items:
if value==myValue:
print(key)Copyright © 2021 Codeinu
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