Python String endswith() Method with Examples

Python string endswith() method is used with strings, and the method returns true if the end of the string with the specified suffix in all other cases it returns false. If the start and end index is not provided, then by default, it takes 0 and length-1 as starting and ending indexes where ending index is not included in our search.

Content Overview

1 Python String endswith()
1.1 Syntax
1.1.1 Programs on endswith() Method
1.1.2 Write a program including start and end suffix in the endswith() method
2 Python string endswith() With Tuple Suffix
3 Regular expression with Python endswith()
4 Python string endswith list
4.1 How to check if the last characters in a string are numbers

Python String endswith()

Python endswith() method returns the boolean.

  1. It returns True if strings end with the specified suffix.
  2. It returns False if a string doesn’t end with a particular suffix.

Syntax

string.endswith(suffix, start, end)

Suffix: This is the part of the string for which we are checking if the string is ending with that part or not.

Start: The suffix starts from here; it is optional.

End: The suffix ends here; it is optional.

Programs on endswith() Method

Write a program to show the working of the endswith() method.

# app.py

string = "Hello I am a string and I am ending with = end"

result = string.endswith("end")
result1 = string.endswith("END")
print("Comparing it with right suffix so output: ",result)
print("Comparing it with wrong suffix so output: ",result1)

See the output.

Comparing it with right suffix so output:  True
Comparing it with the wrong suffix so output:  False

Write a program including start and end suffix in the endswith() method

See the following program.

# app.py

string = "This is a string and is awesome"
right_suf = "some"
wrong_suf = "some!"
print(string.endswith(right_suf, 28, 31))
print(string.endswith(wrong_suf, 28, 31))

See the output.

False
False

Python string endswith() With Tuple Suffix

See the following code.

# app.py

text = "Jean Milburn"
result = text.endswith(('Jean', 'Otis'))

print(result)

result = text.endswith(('Jean', 'Milburn'))

print(result)

See the output.

➜  pyt python3 app.py
False
True
➜  pyt

Regular expression with Python endswith()

Python endswith() method does not allow for a regular expression. You can only search for a string suffix. This makes sense.
The regular expression can describe an infinite set of matching strings. For example, the regex ‘.*A’ matches all words ending with the character ‘A.’ This operation can be computationally expensive.

Python string endswith list

If you want to check if the string ends with one of the strings from a list, then you can use the Python endswith() function.

See the following code.

# app.py

extensions = ['.jpg','.png']
file_name = 'test.png'

print(file_name.endswith(('.jpg', '.png')))

Python tuple syntax with endswith() function is the following.

file_name.endswith(tuple(extensions))

The endswith() function also accepts the tuple. So the code becomes more straightforward. See the output.

➜  pyt python3 app.py
True
➜  pyt

How to check if the last characters in a string are numbers

Now, for this kind of requirement where you need to check if the last characters in the string are numbers and return those numbers, then you need to use Python regexp.

See the following code.

# app.py

import re

string = 'eleven11'
m = re.search(r'\d+$', string)

# if the string ends in digits m will be a Match object, or None otherwise.
if m is not None:
    print(m.group())

In the above example, our string is eleven11 So, if the string contains the number, then it will return the number; otherwise, it won’t return.

See the output.

➜  pyt python3 app.py
11
➜  pyt

Finally, Python String endswith() Method Example is over.

#python

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Python String endswith() Method with Examples
Ray  Patel

Ray Patel

1619518440

top 30 Python Tips and Tricks for Beginners

Welcome to my Blog , In this article, you are going to learn the top 10 python tips and tricks.

1) swap two numbers.

2) Reversing a string in Python.

3) Create a single string from all the elements in list.

4) Chaining Of Comparison Operators.

5) Print The File Path Of Imported Modules.

6) Return Multiple Values From Functions.

7) Find The Most Frequent Value In A List.

8) Check The Memory Usage Of An Object.

#python #python hacks tricks #python learning tips #python programming tricks #python tips #python tips and tricks #python tips and tricks advanced #python tips and tricks for beginners #python tips tricks and techniques #python tutorial #tips and tricks in python #tips to learn python #top 30 python tips and tricks for beginners

Ray  Patel

Ray Patel

1619510796

Lambda, Map, Filter functions in python

Welcome to my Blog, In this article, we will learn python lambda function, Map function, and filter function.

Lambda function in python: Lambda is a one line anonymous function and lambda takes any number of arguments but can only have one expression and python lambda syntax is

Syntax: x = lambda arguments : expression

Now i will show you some python lambda function examples:

#python #anonymous function python #filter function in python #lambda #lambda python 3 #map python #python filter #python filter lambda #python lambda #python lambda examples #python map

String methods in Python

String methods:

  • str.capitalize(): Returns copy of the string with its first character capitalized and rest of the letters in lowercase.
#capitalize-Only first character of string is capitalized
	s1="example of string methods"
	print (s1.capitalize()) #Output:Example of string methods
	s2="EXAMPLE OF STRING METHODS"
	print (s2.capitalize())#Output:Example of string methods
  • str.title()- Returns copy of string where first character in every word is upper case.
s1="example of strings"
	print (s1.title()) #Output:Example Of Strings
  • str.casefold(): Returns casefolded copy of the string. Converts string to lower case. Casefolding is similar to lowercasing but more aggressive because it is intended to remove all case distinctions in a string.
#casefold- converts all character to lower case
	s1="Example Of String Methods"
	print (s1.casefold()) #Output:example of string methods

	s2="ß-Beta"
	#ß-lowercase is equivalent to ss. casefold converts it to ss. But lower doesn't do that.
	print (s2.casefold()) #Output: ss-beta
	print (s2.lower())#Output: ß-beta
  • str.swapcase():Returns copy of string with uppercase characters converted to lowercase and vice versa.
s1="example of strings"
	print (s1.swapcase()) #Output:EXAMPLE OF STRINGS

	s2="EXAMPLE OF STRINGS"
	print (s2.swapcase()) #Output:example of strings

	s3="Example Of Strings"
	print (s3.swapcase()) #Output:eXAMPLE oF sTRINGS
  • str.lower()-Returns copy of string in lowercase.Symbols and numbers are ignored.
s1="Example Of Strings"
	print (s1.lower()) #Output:example of strings

	s2="EXAMPLE OF STRINGS??"
	print (s2.lower())#Output:example of strings??

	s3="1.example of strings?"
	print (s3.lower()) #Output:1.example of strings?
  • str.upper()-Returns copy of string in uppercase.Symbols and numbers are ignored.
s1="Example Of Strings"
	print (s1.upper())#Output:EXAMPLE OF STRINGS

	s2="EXAMPLE OF STRINGS??"
	print (s2.upper())#Output:EXAMPLE OF STRINGS??

	s3="1.example of strings?"
	print (s3.upper()) #Output:1.EXAMPLE OF STRINGS?
  • str.encode():Returns an encoded version of the string in byte format.
str.encode(encoding=”encoding”,errors=”errors”)

encoding(Optional):Default encoding is “utf-8”

errors(Optional):Default errors is “strict”.Raise unicode error.

s1= "example öf strings"
	print (s1) #Output:example öf strings

	#Use backslash for the character that can't be encoded
	print(s1.encode(encoding="ascii",errors="backslashreplace")) #Output:b'example \\xf6f strings'

	#ignores the character that can't be encoded
	print(s1.encode(encoding="ascii",errors="ignore"))#Output:b'example f strings'

	#replace the character that can't be encoded with the text explanining the character. 
	print(s1.encode(encoding="ascii",errors="namereplace"))#Output:b'example \\N{LATIN SMALL LETTER O WITH DIAERESIS}f strings'

	#Replace the character that can't be encoded with the question mark
	print(s1.encode(encoding="ascii",errors="replace"))#Output:b'example ?f strings'

	#Replace the character that can't be encoded with xml character.
	print(s1.encode(encoding="ascii",errors="xmlcharrefreplace"))#Output:b'example öf strings'

	#strict-Raise Unicode Error
	print(s1.encode(encoding="ascii",errors="strict"))
	#Output:UnicodeEncodeError: 'ascii' codec can't encode character '\xf6' in position 8: ordinal not in range(128)

	#errors are not mentioned.Default is strict-Raise Unicode Error.
	print(s1.encode(encoding="ascii"))
	#Output:UnicodeEncodeError: 'ascii' codec can't encode character '\xf6' in position 8: ordinal not in range(128)
  • str.startswith()- Returns True, if the string starts with specified value, otherwise returns False.

#python3 #python #string-methods #python-strings #python-programming

Python String endswith() Method Example

Python string endswith() is an inbuilt method that is used with strings, and the method returns true if the end of the string with the specified suffix in all other cases it returns false. If the start and end index is not provided, then by default, it takes 0 and length-1 as starting and ending indexes where ending index is not included in our search.

Python String endswith()

Python endswith() method returns the boolean.

  1. It returns True if  strings end with the specified suffix.
  2. It returns False if a string doesn’t end with a particular suffix.

#python #endswith #python endswith

How To Compare Tesla and Ford Company By Using Magic Methods in Python

Magic Methods are the special methods which gives us the ability to access built in syntactical features such as ‘<’, ‘>’, ‘==’, ‘+’ etc…

You must have worked with such methods without knowing them to be as magic methods. Magic methods can be identified with their names which start with __ and ends with __ like init, call, str etc. These methods are also called Dunder Methods, because of their name starting and ending with Double Underscore (Dunder).

Now there are a number of such special methods, which you might have come across too, in Python. We will just be taking an example of a few of them to understand how they work and how we can use them.

1. init

class AnyClass:
    def __init__():
        print("Init called on its own")
obj = AnyClass()

The first example is _init, _and as the name suggests, it is used for initializing objects. Init method is called on its own, ie. whenever an object is created for the class, the init method is called on its own.

The output of the above code will be given below. Note how we did not call the init method and it got invoked as we created an object for class AnyClass.

Init called on its own

2. add

Let’s move to some other example, add gives us the ability to access the built in syntax feature of the character +. Let’s see how,

class AnyClass:
    def __init__(self, var):
        self.some_var = var
    def __add__(self, other_obj):
        print("Calling the add method")
        return self.some_var + other_obj.some_var
obj1 = AnyClass(5)
obj2 = AnyClass(6)
obj1 + obj2

#python3 #python #python-programming #python-web-development #python-tutorials #python-top-story #python-tips #learn-python