define DICTIONARY python code example
Example 1: create dictionary comprehension python
{key:value for key in iterable}
Example 2: python make a dictionary
thisdict = {
"brand": "Ford",
"model": "Mustang",
"year": 1964
}
thisdict["year"] = 2018
Example 3: 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 4: dictionary in python
tel = {'jack': 4098, 'sape': 4139}
tel['guido'] = 4127
print(tel)
print(tel['jack'])
del tel['sape']
tel['irv'] = 4127
print(tel)
print(list(tel))
print(sorted(tel))
print('guido' in tel)
print('jack' not in tel)
Example 5: what is a dictionary in programming
// This is a JS Object (dictionary eqiv.)
var obj = {
num:16,
str:'hello',
bool:true
};
Example 6: python3 add dictionary to dictionary
dict_1 = {"1":"a", "2":"b", "3":"c"}
dict_2 = {"4":"d", "5":"e", "6":"f"}
dict_1.update(dict_2)
print(dict_1)