python obține valoare din dicționar
dict = {'color': 'blue', 'shape': 'square', 'perimeter':20}
dict.get('shape') #returns square
#You can also set a return value in case key doesn't exist (default is None)
dict.get('volume', 'The key was not found') #returns 'The key was not found'
obține () piton
# 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.com
cum se obține valoarea cheii în python
print(dict["key"])
cum să obțineți valoare de la dict cheie în python
# Get a value from a dictionary in python from a key
# Create dictionary
dictionary = {1:"Bob", 2:"Alice", 3:"Jack"}
# Retrieve value from key 2
entry = dictionary[2]
# >>> entry
# Alice