how to define dictionary in python code example
Example 1: dictionary in python
programming_dictionary = {
"Bug": "An error in a program that prevents the program from running as expected.",
"Function": "A piece of code that you can easily call over and over again.",
"Loop": "The action of doing sommething again and again",
}
print(programming_dictionary["Function"])
for key in programming_dictionary:
print(programming_dictionary[key])
programming_dictionary["Variable"] = "The label to store some sort of data"
print(programming_dictionary["Variable"])
programming_dictionary["Variable"] = "Variables are nothing but reserved memory locations to store values. This means that when you create a variableyou reserve some space in memory"
Example 2: python make a dictionary
thisdict = {
"brand": "Ford",
"model": "Mustang",
"year": 1964
}
thisdict["year"] = 2018
Example 3: dictionaries in python 3
clear() - Removes all the elements from the dictionary
copy() - Returns a copy of the dictionary
fromkeys() - Returns a dictionary with the specified keys and value
get() - Returns the value of the specified key
items() - Returns a list containing a tuple for each key value pair
keys() - Returns a list containing the dictionary's keys
pop() - Removes the element with the specified key
popitem() - Removes the last inserted key-value pair
setdefault() - Returns the value of the specified key. If the key does not exist: insert the key, with the specified value
update() - Updates the dictionary with the specified key-value pairs
values() - Returns a list of all the values in the dictionary
Example 4: dictionary in python
d = {'key1':'value1','key2':'value2'}
print(d)
l=d.keys
print(l)
b=d.values
print(b)
Example 5: dictionary in python
thisdictionary = {'key':'value','key1':'value1'}
print(thisdictionary['key'])
Example 6: dicts python
thisdict = {
"brand": "Ford",
"model": "Mustang",
"year": 1964
}
x = thisdict["model"]
print(x)
---------------------------------------------------------------------------
Mustang