The Str () Function in Python

This guide provides a practical overview of Str () Function in Python, including its main features, benefits, limitations, and important considerations.

The syntax of the str () function in Python

The str () function in Python has the syntax:

str(object, encoding='utf-8', errors='strict')

Parameters of the str () function

The str () function has 3 parameters:

• Object : An object that can be displayed as a string. If not supplied, the result is an empty string.
• encoding : Encoding of an object. If not provided, the default encoding is UTF-8.
• errors : Respond when encoding fails. The default value is 'strict'.

There are 6 types of errors:

• strict : The default response raises the UnicodeDecodeError exception when an error occurs
• ignore : Removes Unicode which cannot be encoded in the result
• replace : Replace non-Unicode encoding with a question mark
• xmlcharrefreplace : Insert an XML character reference instead of Unicode that cannot be encoded
• blackslashreplace : Insert a string uNNNN instead of Unicode which cannot be encoded
• nameraplace : Insert a string N {.} instead of Unicode which cannot be encoded

The str () function in Python returns the string form of an object

The return value of the str () function

The str () function returns a string that is considered to be an unofficial or printable representation of an object.

Example 1: Converting an object to a string using str ()

If two encoding and errors parameters are not provided, the str () function calls the internal __str __ () method of an object.

If the __str __ () method cannot be found, it will call the repr (obj) function instead.

For example:

NamePage = str('TipsMake.com') print(NamePage)

When running the program, the result we get is:

TipsMake.com

Note: The resulting variable will contain a string.

Example 2: How does str () function with bytes?

If the encoding and errors parameters are provided, the first parameter - the object - will have to be a byte object (bytes or bytearray).

If the object is in the form of bytes or bytearray , the str () function will call the bytes. decode (ecoding, errors) method .

Besides, it will get the byte object in the buffer before calling the decode () method .

For example

# str() handling objects in the form of bytes b = bytes('TipsMake', encoding='utf-8') print(str(b, encoding='ascii', errors='ignore'))

The result is:

TipsMake

Here, the character ö cannot decode in ASCII. Therefore, it will cause an error. However, we have set the errors = 'ignore' parameter so Python will ignore the non-decode characters with the str () function.

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