Python Tutorial: String operations

Key Takeaways

in this video we'll learn more about string manipulation specifically about basic string operations most at the science projects involve a string manipulation bison has many Belden methods that allow us to handle strings let's check some of them suppose we have a string like the one in the example code sometimes the analysis requires a string to be entire lowercase we could use the dot flower method to convert all alphabetic characters to lowercase are shown in the output on the contrary we may want the string to be uppercase we could use the dot approved methods to convert all faretta characters to a practice as displayed lastly we could use dot capitalize to return copy of the string with the first character in uppercase while keeping all other characters in lowercase of this plate there are no thoughts that can compare between a string and other types of data such as lists by breaking a string into business let's work with the following example we want to split the string into a list of sub-strings Python provide us with two methods that split and that are split both of them return a list they both take a separating element by which we are split in the string Animax split that tell us the maximum number of sub strings we want as we can send the code the difference is that split start splitting on the left are split begins at the right of the string if Mac split is not specified both methods behave in the same way they give as many sub strings as possible if you want the split to be done by the whitespace you don't have to specify the sub argument consider the following string if we print it out we can see that contains two lines why is that there are some escape sequences suggest /n or /r that indicates a long boundary sometimes we want to split a string into lines so in the case of our string we want to split it at the /n for this aim Python has the method split lines as we can see in the code the string is a split at the /n sequence returning a list of two elements some methods can paste or concatenate together the objects in a list or other iterable data this is that case for dot join methods the syntax is simple it first takes the separating element inside the call we specify the list or interval element what kind of servant example that whitespace is a specified as a separate and the data type is a list the result is a single string containing all the objects in the list separated by the I space lastly we'll talk about methods that will train characters from a string the dot strip methods will remove both leading and trailing characters inside the core we can specify a current if we don't do it y space will be removed let's say we have the following string and we apply the dot strip method are shown we get a string where both the leading space and the trailing escape sequence were removed we can apply dot are three methods and it will return a string where the trailing slash end was removed if we apply the dot all strip method will get string with a living whitespace eliminated now that you know many building methods for string manipulation you can start to put