Python string `endswith()` usage and example

Python string methods

If the string ends with the specified value, the `endswith()` method returns True. If not, it returns False.

The syntax of `endswith()` is:

str.endswith(suffix[, start[, end]])

The `endswith()` parameters

The `endswith()` function has three parameters:

• Suffix -The suffix string or tuple to be checked

• Start(Optional)- Check in the stringSuffixStart position.

• End(Optional)- Check in the stringSuffixEnd position.

The `endswith()` return value

The `endswith()` method returns a boolean value.

• Returns True if the string ends with the specified value.

• Returns False if the string does not end with the specified value.

Example1: The `endswith()` function without start and end parameters

text = "Python is easy to learn."
result = text.endswith('to learn')
# Return False
print(result)
result = text.endswith('to learn.')
# Return True
print(result)
result = text.endswith('Python is easy to learn.')
# Return True
print(result)

When running the program, the output is:

False
True
True

Example2: The `endswith()` function with start and end parameters

text = "Python programming is easy to learn."
# start parameter:　7
# "programming is easy to learn." is the string to be searched
result = text.endswith('learn.',　7)
print(result)
# Pass both start and end parameters
# start:　7, end:　26
# "programming is easy" is the string to be searched
result = text.endswith('is',　7,　26)
# Return False
print(result)
result = text.endswith('easy',　7,　26)
# Return True
print(result)

When running the program, the output is:

True
False
True

Passing a tuple to endswith()

You can pass a tuple as a specified value to the endswith() method in Python.

If a string ends with any item in the tuple, endswith() returns True. If not, it returns False

Example3：With tuple endswith()

text = "programming is easy"
result = text.endswith(('programming', 'python'))
# Output False
print(result)
result = text.endswith(('python', 'easy', 'java'))
# Output True
print(result)
# With start and end parameters
# 'programming is' string is checked
result = text.endswith(('is', 'an'), 0,)　14)
# Output True
print(result)

When running the program, the output is:

False
True
True

If you need to check if a string starts with a specified prefix, you can use it in Pythonstartswith() method.

Python string methods