How do you display a count in python?

PYTHON String Count[] Method:

The count [] is used to count the number of times a substring occurs in each string. A single parameter [substring value] is quite enough for execution, optionally the other two values are also available.

Syntax:

string.count[value, start, end]

or

string.count[value]

Parameter values:

Value - This is the substring whose count in Python is to be found. This can be a single character or a substring, which needs to be searched for in the given string.

Start [Optional] - This should be an integer, which is the index value to start the search in the given string. By default, it starts from 0, when the value is not given.

End [Optional] - This should be an integer, which is the index value to end the search. By default, it is the end of the string. When the end value is not given, it will find values until the end of the string or list.

The count in Python method returns a number as a return value. The integer value is the return value. When the count in Python returns 0, then it means that the value is not found in the list or string.

Example 1: 

Code 1:

# this line for declaring a variable and its value

myText = "I love Paris, Paris is my favorite tourist destination"

# this line for calling the count method

numofCounts = myText.count["Paris"]

# this line for print output

print["{} number of times".format[numofCounts]] # format is the inbuilt 

function to use join the values.

Output:

2 number of times

In the above example, the count method will search for the word “Paris'' in myText. It will return 2 as an integer value since the word Paris occurs two times in the string. The variable ‘numofCounts’ will get the return value and display the result.

Example 2:

Code 2:

# this line for declaring the variable and its value

myText = "I love Paris, Paris is my favorite tourist destination"

# this line for calling the count method with start and end value

numofCounts = myText.count["Paris",8,20] # 8 is start value , 20 is end value

# this line for print output

print["{} number of times".format[numofCounts]] 

# format is the inbuilt function to use join the values.

Output

1 number of times

In the above example, the same count method searches for the word “Paris” from the specified index value. Here, the count method has two more parameters. The starting search point is the 8th index, and it ends the searching at the 20th index value of myText string [“aris, Paris is”]. So, it returns only 1 time.

PYTHON List Count[] method:

The count[] method returns the number of elements that appear in the specified list. This method takes a single argument as input. It iterates the list and counts the number of instances that match it.

Syntax:

list.count[value]

Parameters:

Value—The value to be counted in Python. It can be of any type [String, number, list, etc.]

Example 1:

Code 3:

# this line for declare variable and its value

cities= ["Paris","London","New York"]

# this line for calling count method

numofCount =cities.count["Paris"] # this is for test data Paris already Exist

numofTestCount  =  cities.count["Rome"] # this is for test data Rome not exist in list

# this line for print output

print["{} number of times".format[numofCount]] # one because paris exist in List

print["{} number of times".format[numofTestCount]] # zero because Rome not exist in List

Output

1 number of times

0 number of times

Note that in the above example, the print numofTestCount output is 0, as it received an invalid or non-existent parameter.

Example 2:

Count from even number list:

Code 4:

# this line for declaring the variable and its value

evennumbers= [2,4,6,8,10,12,14,16,18,20,22]

# this line for calling the count method

numofEvens = evennumbers.count[4]

print["{} number of times".format[numofEvens]] # format is the inbuilt function to use join the values.

Output

1 number of times

You might have noticed that the output of print numofEvens was 1, though 2 appears at 12 and 20 in the list. It is because the list only counts the element which matches the data type and the value of the parameter passed.

Example 3:

Count from tuple 

Code 5:

# this line for declare variable and its value

cities = [['Paris',1],['London',2],['Rome',3]] # here we passing Tuple values

numofCounts = cities.count[['London',2]]# here we pass only one tuble value . if we pass more tuple values we will face Type Error

print["{} number of times".format[numofCounts]] # format is the in-build function to use join the values.

Output

1 number of times

In the above example, cities denote the list variable that holds a few tuple values. We can find the tuple value with the help of the count method in the list. The numofCounts variable displays 1 since the value was found one time.

When we deal with the list count method, the error possibility in the count method is TypeError. When over 1 parameter is passed, it throws TypeError.

Looking forward to making a move to the programming field? Take up the Python Training Course and begin your career as a professional Python programmer

Conclusion:

Count[] is a Python built-in function that returns the number of times an object appears in a list. The count[] method is one of Python's built-in functions. It returns the number of times a given value occurs in a string or a list, as the name implies. In real-time, we deal with statistical functions and financial functions where the number of arguments containing numbers, or the number of cells containing a number, will benefit from the count process. This approach can also be used to count the number of elements in an array.

To become an expert in Python programming, join Simplilearn's python course. The basics of Python and how to apply it to real-world applications are covered in this Python training course. Data operations in Python, strings, conditional statements, error handling, shell scripting, web scraping, and the frequently used Python web system ‘Django’ are covered in the modules. Lesson-end tasks and assignments make up the curriculum, among other interesting learning methods. It is a 38-hour blended learning curriculum that includes 8 hours of self-paced online learning, 30 hours of instructor-led preparation, 20+ supported practices on all modules, 5 lesson-end information tests, and 1 real-life course-end project, and an industry-recognized course completion certificate.

Have any questions for us? Leave them in the comments section of this article, and our experts will get back to you on the same, ASAP!