So far, we have seen that lists and dictionaries are the most fundamental data structures in python programming with their own differences in certain ways like syntax, storage method, implementation, etc. ![]() It is used to create the data frame with lists.Dictionaries are used when you wish to build the map objects.Dictionaries are used to build the indexes of the content.It used to store large amounts of data for easy and quick access.Dictionary is used as a switch statement in Python.Lists are highly useful for array operations.Lists are used to store the data, which should be ordered and sequential.Looking at all the above parameters, it is quite obvious that dictionaries are better and more efficient to use compared to the python lists. Moreover, dictionaries in Python require very little space to store the data elements in comparison to lists. ![]() It is because keys in the dictionary should be unique in nature, and it may cause problems while modifying them later. ![]() Also, it is recommended to use a list data structure when dealing with the data values that might get changed in the future. So, it is wise to use a list data structure when you are concerned with the order of the data elements. Moreover, lists keep the order of the elements while dictionary does not. It is more efficient to use dictionaries for the lookup of elements as it is faster than a list and takes less time to traverse. Therefore, the dictionary is faster than a list in Python. Due to this, fetching the elements from the list data structure is quite complex compared to dictionaries in Python. The list is an ordered collection of data, whereas the dictionaries store the data in the form of key-value pairs using the hashtable structure. When to use a dictionary vs list in Python? Reverse() method reverse the list elementsĭictionary items cannot be reversed as they are the key-value pairs Sort() method sorts the keys in the dictionary by defaultĬount() methods returns the number of elements appeared in listĬount() method does not exists in dictionation Sort() method sorts the elements in ascending or descending order List object is created using list() functionĭictionary object is created using dict() function The default order of elements is always maintainedĭictionaries are mutable, but keys do not allow duplicates We can access the elements using the keys We can access the elements using the index value The keys in the dictionary are of any given data type Indices are integer values starts from value 0 ![]() Also, each key and pair is separated by a semi-colon (:) To learn more about the python list, refer to our article “ 5 Ways to Convert Set to List in Python". As lists are mutable, you can add, update or delete the elements of the list at any moment while programming. Just as strings are defined as characters between quotes, lists are defined by having values between square brackets () separated by commas.Ī list is great to use when you have to deal with the related values. Each item or value that is inside of a list is called an element. Python possesses a list as a data structure that is an ordered sequence of elements and mutable in nature. This article will explain list and dictionary data structure and their difference and when to use list vs. List and dictionary are some of those python data structures that are simple yet powerful and store a wide range of data. All these python data structures are sequential and store data collection in various formats, unlike others. I can print individual entries but can’t get further than that with a loop etc… any help apreciated.Python supports various in-built data structures to make the programming easy and efficient like any other programming language. I want to print the key value pairs in the following dictionary, I can do it with no problems formatting it just as a dictionary, however I am stumped trying to do it from a list. Hi, I have tried multiple ways to print this but came up stumped:
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