While running Python, you may have encountered this new type of code but weren’t sure what it was. Don’t worry. This article will teach you how to effectively use String Builder Equivalent in Python in the shortest time. Without further discussion, let’s find out more about it!

How To Apply String Builder Equivalent in Python?

Method 1: Apply to join ()

The first solution is to apply to join (). It will return a combined string, and you may add strings from a collection in this method. Use the following example to understand more about it.

mylist = ['Hello' for i in range(6)] 
var1 = "".join(mylist) 
print(var1)

Output

Hello Hello Hello Hello Hello Hello

Method 2: Use the append () function

The second method uses the append () function to append a new string to an existing one. You may better get to know it with the following command.

str1="Hello guys." 
str1+="How are you?" 
print(str 1)

Output

Hello guys. How are you?

Method 3: Take a look at the following example

The third method is a very simple and practical procedure. Take a look at the following example.

from io import StringIO
str = ['welcome ','to ','my ','tutorial']
string = StringIO()
for i in str:
string.write(i)
print(string.getvalue())

Output

welcome to my tutorial

Method 4: Use StringIO Module

Excepting the methods mentioned above, there is another method for “String Builder Equivalent in Python”. It is using StringIO module. 

A built-in module of Python which is called StringIO, can read and write strings to and from the memory buffer. After iterating through the list in a loop, we first build a StringIO object and then write it. The getvalue() method is then used to print the necessary string. Look at the following example to understand more about this method:

You must import the StringIO module at the top of your file in order to use it.

from io import StringIO

Make a StringBuilder class now and provide three of its methods.

class StringBuilder:
_file_str = None

def __init__(self):
self._file_str = StringIO()

def Add(self, str):
self._file_str.write(str)

def __str__(self):
return self._file_str.getvalue()

The concatenated strings are returned by the _str_() method after the Add() method appends the strings to that function.

The creation of the class object and calling these functions are the final steps.

string_builder = StringBuilder()

string_builder.Add("Snyder ")
string_builder.Add("Cut ")
string_builder.Add("2021")

print(string_builder)

Here is the complete code.

from io import StringIO


class StringBuilder:
_file_str = None

def __init__(self):
self._file_str = StringIO()

def Add(self, str):
self._file_str.write(str)

def __str__(self):
return self._file_str.getvalue()


string_builder = StringBuilder()

string_builder.Add("Snyder ")
string_builder.Add("Cut ")
string_builder.Add("2021")

print(string_builder)

Output

Snyder Cut 2021

And the strings are concatenated as expected.

Conclusion

The String Builder Equivalent in Python is a new approach that needs a better understanding before applying it. Please provide us with your concerns and ideas to help us support you with better answers. Thank you!

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