In this tutorial, we are going to learn how we can slice strings in Python.<\/p>\n\n\n\n
Python supports the slicing of strings. It is the creation of a new sub-string from the given string on the basis of the user-defined starting and ending indices. <\/p>\n\n\n\n
If you want to slice strings in Python, it’s going to be as simple as this one line below. <\/p>\n\n\n
\nres_s = s[ start_pos:end_pos:step ]\n<\/pre><\/div>\n\n\nHere, <\/p>\n\n\n\n
Note<\/strong>: All of the above three parameters are optional. By default, Now let us take some examples to understand how to slice strings in Python in a better way. <\/p>\n\n\n\n Slicing Python strings can be done in different ways.<\/p>\n\n\n\n Usually, we access string elements(characters) using simple indexing that starts from 0<\/em> up to n-1<\/strong>(n is the length of the string). Hence for accessing the 1st<\/strong> element of a string Again, there is another way to access these characters, that is, using negative indexing<\/strong>. Negative indexing starts from -1<\/strong> to -n<\/strong>(n is the length for the given string). Note, negative indexing is done from the other end of the string. Hence, to access the first character this time we need to follow the below-given code. <\/p>\n\n\n Now let us look at some ways following which we can slice a string using the above concept. <\/p>\n\n\n\n We can easily slice a given string by mentioning the starting and ending indices for the desired sub-string we are looking for. Look at the example given below, it explains string slicing using starting and ending indices for both usual and negative indexing method. <\/p>\n\n\n Output<\/strong>:<\/p>\n\n\n Here,<\/p>\n\n\n\n Hence, our output is justified.<\/p>\n\n\n\n As mentioned earlier, all of the three parameters for string slicing are optional. Hence, we can easily accomplish our tasks using one parameter. Look at the code below to get a clear understanding. <\/p>\n\n\n Output<\/strong>:<\/p>\n\n\n Here, <\/p>\n\n\n\n The Output<\/strong>:<\/p>\n\n\n In the code above, <\/p>\n\n\n\n With the use of negative index string slicing in Python, we can also reverse the string and store it in another variable. For doing so we just need to mention a Let us see how that works in the example given below.<\/p>\n\n\n Output<\/strong>:<\/p>\n\n\n As we can see, the string s is reversed and stored into So in this tutorial, we learned about the string slicing methodology and its different forms. Hope, the readers had a clear understanding of the topic.<\/p>\n\n\n\n For any further questions related to this topic, feel free to use the comments below. <\/p>\n\n\n\nstart_pos<\/code> is set to 0<\/strong>, end_pos<\/code> is considered equal to the length of the string, and step<\/code> is set to 1<\/strong>.<\/p>\n\n\n\nSlice Strings in Python – Examples<\/h2>\n\n\n\n
string1<\/code>, we can simply use the below code. <\/p>\n\n\n\ns1 = String1[0]\n<\/pre><\/div>\n\n\n
\ns1 = String\ufeff1[-n]\n<\/pre><\/div>\n\n\n
1. Slice Strings in Python with Start and End<\/h3>\n\n\n\n
\n#string slicing with two parameters\ns = "Hello World!"\n\nres1 = s[2:8]\nres2 = s[-4:-1] #using negative indexing\n\nprint("Result1 = ",res1)\nprint("Result2 = ",res2)\n<\/pre><\/div>\n\n\n\nResult1 = llo Wo\nResult2 = rld\n<\/pre><\/div>\n\n\n
s<\/code> as “Hello World!”<\/strong>, <\/li>2. Slice Strings Using Only the Start or End<\/h3>\n\n\n\n
\n#string slicing with one parameter\ns1= "Charlie"\ns2="Jordan"\n\nres1 = s1[2:] #default value of ending position is set to the length of string\nres2 = s2[:4] #default value of starting position is set to 0\n\nprint("Result1 = ",res1)\nprint("Result2 = ",res2)\n<\/pre><\/div>\n\n\n\nResult1 = arlie\nResult2 = Jord\n<\/pre><\/div>\n\n\n
3. Slice Strings in Python with Step Parameter<\/h3>\n\n\n\n
step<\/code> value decides the jump the slicing operation would take from one index to the other. Look at the example below carefully. <\/p>\n\n\n\n#string slicing with step parameter\ns= "Python"\ns1="Kotlin"\n\nres = s[0:5:2]\nres1 = s1[-1:-4:-2] #using negative parameters\n\nprint("Resultant sliced string = ",res)\nprint("Resultant sliced string(negative parameters) = ",res1)\n<\/pre><\/div>\n\n\n\nResultant sliced string = Pto\nResultant sliced string(negative parameters) = nl\n<\/pre><\/div>\n\n\n
4. Reversing a String using Slicing in Python<\/h3>\n\n\n\n
step<\/code> size of (-1)<\/strong>. <\/p>\n\n\n\n\n#reversing string using string slicing\ns= "AskPython"\nrev_s = s[::-1] #reverse string stored into rev_s\n\nprint(rev_s)\n<\/pre><\/div>\n\n\n
\nnohtyPksA\n<\/pre><\/div>\n\n\n
rev_s<\/code>. Note<\/strong>: For this case too, the original string remains intact and untouched.<\/p>\n\n\n\nConclusion<\/h2>\n\n\n\n
References<\/h2>\n\n\n\n