string operations python code example

Example 1: python string in string

>>> str = "Messi is the best soccer player"
>>> "soccer" in str
True
>>> "football" in str
False

Example 2: strings in python

#A string is a type of data. There are many data types. It can be manipulated.
#It can be storerd as a variable
myString = "Hello world"
#WE can print it:
print(myString)
#You can append it to arraY:
myArr = []
myArr.append(myString)
#You can find the index of a character in a string:
H = myString[0]
#You can use methods on it:
lowercase = myString.lower()
#You can convert it into a integer provided it is a numerical string
myInt = int(myString)
#So thats the basics, hope i haven't left anything out.

Example 3: {} string python

txt1 = "My name is {fname}, I'm {age}".format(fname = "John", age = 36)
txt2 = "My name is {0}, I'm {1}".format("John",36)
txt3 = "My name is {}, I'm {}".format("John",36)

#https://www.w3schools.com/python/ref_string_format.asp

Example 4: string function in class python

class Person:
    name = ""
    age = 0

    def __init__(self, personName, personAge):
        self.name = personName
        self.age = personAge

    def __repr__(self):
        return {'name':self.name, 'age':self.age}

    def __str__(self):
        return 'Person(name='+self.name+', age='+str(self.age)+ ')'