How do you list all functions in python?
For global functions Show
For example running:
Returns functions/classes like:
Some of which are not generally meant for general programming use (but by the module itself, except in the case of DunderAliases like
Here is an example:
All the functions and classes
with underscores have been removed, leaving only those that are defined as public and can therefore be used via Note that A case of this is with the ast module: This article was published as a part of the Data Science Blogathon IntroductionIn Python, you’ll be able to use a list function that creates a group that will be manipulated for your analysis. This collection of data is named a list object. While all methods are functions in Python, not all functions are methods. There’s a key difference between functions and methods in Python. Functions take objects as inputs while Methods in contrast act on objects. Image Source: Google Images Python offers the subsequent list functions:
List RefresherIt is the primary, and certainly the foremost common container.
Image Source: Google Images Let’s see all the functions one by one with the help of an example,sort() methodThe sort() method is a built-in Python method that, by default, sorts the list in ascending order. However, you’ll modify the order from ascending to descending by specifying the sorting criteria. ExampleLet’s say you would like to sort the elements of the product’s prices in ascending order. You’d type prices followed by a . (period) followed by the method name, i.e., sort including the parentheses. Python Code: type() functionFor the type() function, it returns the class type of an object. ExampleIn this example, we will see the data type of the formed container. fam = ["abs", 1.57, "egfrma", 1.768, "mom", 1.71, "dad"] type(fam) Output: list append() methodThe append() method will add some elements you enter to the end of the elements you specified. ExampleIn this example, let’s increase the length of the string by adding the element “April” to the list. Therefore, the append() function will increase the length of the list by 1. months = ['January', 'February', 'March'] months.append('April') print(months) Output: ['January', 'February', 'March', 'April'] extend() methodThe extend() method increases the length of the list by the number of elements that are provided to the strategy, so if you’d prefer to add multiple elements to the list, you will be able to use this method. ExampleIn this example, we extend our initial list having three objects to a list having six objects. list = [1, 2, 3] list.extend([4, 5, 6]) list Output: [1, 2, 3, 4, 5, 6] index() methodThe index() method returns the primary appearance of the required value. ExampleIn the below example, let’s examine the index of February within the list of months. months = ['January', 'February', 'March', 'April', 'May'] months.index('March') Output: 2 max() functionThe max() function will return the highest value from the inputted values. ExampleIn this example, we’ll look to use the max() function to hunt out the foremost price within the list named price. prices = [589.36, 237.81, 230.87, 463.98, 453.42] price_max = max(prices) print(price_max) Output: 589.36 min() functionThe min() function will return the rock bottom value from the inputted values. ExampleIn this example, you will find the month with the tiniest consumer indicator (CPI). To identify the month with the tiniest consumer index, you initially apply the min() function on prices to identify the min_price. Next, you’ll use the index method to look out the index location of the min_price. Using this indexed location on months, you’ll identify the month with the smallest consumer indicator. months = ['January', 'February', 'March'] prices = [238.11, 237.81, 238.91] # Identify min price min_price = min(prices) # Identify min price index min_index = prices.index(min_price) # Identify the month with min price min_month = months[min_index] print[min_month] Output: February len() functionThe len() function returns the number of elements in a specified list. ExampleIn the below example, we are going to take a look at the length of the 2 lists using this function. list_1 = [50.29] list_2 = [76.14, 89.64, 167.28] print('list_1 length is ', len(list_1)) print('list_2 length is ', len(list_2)) Output: list_1 length is 1 list_2 length is 3 clear() functionThe clear() method removes all the elements from a specified list and converts them to an empty list. ExampleIn this example, we’ll remove all the elements from the month’s list and make the list empty. months = ['January', 'February', 'March', 'April', 'May'] months.clear() Output: [ ] insert() functionThe insert() method inserts the required value at the desired position. ExampleIn this example, we’ll Insert the fruit “pineapple” at the third position of the fruit list. fruits = ['apple', 'banana', 'cherry']
fruits.insert(2, "pineapple") Output: ['apple', 'banana', 'pineapple', 'cherry'] count() functionThe count() method returns the number of elements with the desired value. ExampleIn this example, we are going to return the number of times the fruit “cherry” appears within the list of fruits. fruits = ['cherry', 'apple', 'cherry', 'banana', 'cherry'] x = fruits.count("cherry") Output: 3 pop() functionThe pop() method removes the element at the required position. ExampleIn this example, we are going to remove the element that’s on the third location of the fruit list. fruits = ['apple', 'banana', 'cherry', 'orange', 'pineapple'] fruits.pop(2) Output: ['apple', 'banana', 'orange', 'pineapple'] remove() functionThe remove() method removes the first occurrence of the element with the specified value. ExampleIn this example, we will Remove the “banana” element from the list of fruits. fruits = ['apple', 'banana', 'cherry', 'orange', 'pineapple'] fruits.remove("banana") Output: ['apple', 'cherry', 'orange', 'pineapple'] reverse() functionThe reverse() method reverses the order of the elements. ExampleIn this example, we will be reverse the order of the fruit list, so that the first element in the initial list becomes last and vice-versa in the new list. fruits = ['apple', 'banana', 'cherry', 'orange', 'pineapple'] fruits.reverse() Output: ['pineapple', 'orange', 'cherry', 'banana', 'apple'] copy() functionThe copy() method returns a copy of the specified list and makes the new list. ExampleIn this example, we want to create a list having the same elements as the list of fruits. fruits = ['apple', 'banana', 'cherry', 'orange'] x = fruits.copy() Output: ['apple', 'banana', 'cherry', 'orange'] This ends our discussion! End NotesI hope you enjoyed the article. If you want to connect with me, please feel free to contact meonEmail Your suggestions and doubts are welcomed here in the comment section. Thank you for reading my article! The media shown in this article are not owned by Analytics Vidhya and are used at the Author’s discretion. Can I have a list of functions in Python?In Python, you can use a list function which creates a collection that can be manipulated for your analysis. This collection of data is called a list object. While all methods are functions in Python, not all functions are methods.
What are all the functions in Python?Python Built-in Functions. print( ) function.. type( ) function.. input( ) function.. abs( ) function.. pow( ) function.. dir( ) function.. sorted( ) function.. max( ) function.. How do I see all methods in Python?You can use the built in dir() function to get a list of all the attributes a module has. Try this at the command line to see how it works. Also, you can use the hasattr(module_name, "attr_name") function to find out if a module has a specific attribute. See the Guide to Python introspection for more information.
How do I print a list of built in functions in Python?The builtins module and __builtins__. import builtins print(len('abc')) # 3 print(builtins. ... . print(__builtins__. ... . import pprint print(type(dir(__builtins__))) # print(dir(__builtins__)[0]) # ArithmeticError print(type(dir(__builtins__)[0])) # |