❮ List Methods
Example
Return the number of times the value "cherry" appears in the fruits list:
fruits = ['apple', 'banana', 'cherry']
x = fruits.count["cherry"]
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Definition and Usage
The
count[] method returns the number of elements with the specified value.
Syntax
Parameter Values
| value | Required. Any type [string, number, list, tuple, etc.]. The value to search for. |
More Examples
Example
Return the number of times the value 9 appears int the list:
points = [1, 4, 2, 9, 7, 8, 9, 3, 1]
x = points.count[9]
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❮ List Methods
❮ String Methods
Example
Return the number of times the value "apple" appears in the string:
txt = "I love apples, apple are my favorite fruit"
x = txt.count["apple"]
print[x]
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Definition and Usage
The count[] method returns the number of times a specified value appears in the string.
Syntax
string.count[value, start, end]
Parameter Values
| value | Required. A String. The string to value to search for |
| start | Optional. An Integer. The position to start the search. Default is 0 |
| end | Optional. An Integer. The position to end the search. Default is the end of the string |
More Examples
Example
Search from position 10 to 24:
txt = "I love apples, apple are my favorite fruit"
x = txt.count["apple", 10, 24]
print[x]
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❮ String Methods
In this tutorial, we will learn about the Python String count[] method with the help of examples.
The count[] method returns the number of occurrences of a substring in the given string.
Example
message = 'python is popular programming language'
# number of occurrence of 'p'
print['Number of occurrence of p:', message.count['p']]
# Output: Number of occurrence of p: 4Syntax of String count
The syntax of count[] method is:
string.count[substring, start=..., end=...]
count[] Parameters
count[] method only requires a single
parameter for execution. However, it also has two optional parameters:
- substring - string whose count is to be found.
- start [Optional] - starting index within the string where search starts.
- end [Optional] - ending index within the string where search ends.
Note: Index in Python starts from 0, not 1.
count[] Return Value
count[] method returns the number of occurrences of
the substring in the given string.
Example 1: Count number of occurrences of a given substring
# define string
string = "Python is awesome, isn't it?"
substring = "is"
count = string.count[substring]
# print count
print["The count is:", count]Output
The count is: 2
Example 2: Count number of occurrences of a given substring using start and end
# define string
string = "Python is awesome, isn't it?"
substring = "i"
# count after first 'i' and before the last 'i'
count = string.count[substring, 8, 25]
# print count
print["The count is:", count]Output
The count is: 1
Here, the counting starts after the first i has been encountered, i.e. 7th index position.
And, it ends before the last i, i.e. 25th index position.
In this tutorial, we will learn about the Python List count[] method with the help of examples.
The count[] method returns the number of times the specified element appears in the list.
Example
# create a list
numbers = [2, 3, 5, 2, 11, 2, 7]
# check the count of 2
count = numbers.count[2]
print['Count of 2:', count]
# Output: Count of 2: 3Syntax of List count[]
The syntax of the count[] method is:
list.count[element]
count[] Parameters
The count[] method takes a single
argument:
- element - the element to be counted
Return value from count[]
The count[] method returns the number of times element appears in the list.
Example 1: Use of count[]
# vowels list
vowels = ['a', 'e', 'i', 'o', 'i', 'u']
# count element 'i'
count = vowels.count['i']
# print count
print['The count of i is:', count]
# count element 'p'
count = vowels.count['p']
# print count
print['The count of p is:', count]Output
The count of i is: 2 The count of p is: 0
Example 2: Count Tuple and List Elements Inside List
# random list
random = ['a', ['a', 'b'], ['a', 'b'], [3, 4]]
# count element ['a', 'b']
count = random.count[['a', 'b']]
# print count
print["The count of ['a', 'b'] is:", count]
# count element [3, 4]
count = random.count[[3, 4]]
# print count
print["The count of [3, 4] is:", count]Output
The count of ['a', 'b'] is: 2 The count of [3, 4] is: 1