String Slicing In Python | Indexing And Slicing Python For Beginners
String slicing in Python refers to the ability to extract a portion of a string by specifying a range of indices. You can use square brackets [] along with the start and end indices to slice a string.
For example, consider the string text = "Hello, World!". You can slice this string to extract specific portions:
text = "Hello, World!"
Get characters from index 0 to 4 (exclusive of index 4)
substring1 = text[0:5] # Output: "Hello"
Get characters from index 7 to the end of the string
substring2 = text[7:] # Output: "World!"
Get the last character of the string
last_char = text[-1] # Output: "!"
Get characters from index 0 to 10 in steps of 2
substring3 = text[0:11:2] # Output: "Hlo o"
Reverse the string
reversed_text = text[::-1] # Output: "!dlroW ,olleH"
In Python string slicing:
text[start:end] extracts characters from index start to end-1.
Omitting start or end means the slicing will start from the beginning or go till the end, respectively.
Negative indices can be used to count from the end of the string.
text[start:end:step] allows you to specify a step or stride for the slicing.
Feel free to play around with different indices and combinations to extract the substrings you need!
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