Let us look at the above concepts using a simple example. Inserts a backslash escape sequence ( \uNNNN) instead of un-encodable Unicode characters. Replaces all un-encodable Unicode characters with a question mark ( ?) This chapter describes modules (function. In addition, this module also provides the b64encode. The base64 module is used to encode and decode the data in the following ways: Base64 Encoding The base64 module provides the b64encode () function. To allow for extensibility, some built-in modules can be extended from Python code loaded onto the device filesystem. To decode Base64 to original data, Python provides the b64decode function of the base64 module. The below example depicts the decoding of the above example encode string output. First we convert the Base64 strings into unencoded data bytes followed by conversion into bytes-like object into a string. Ignores the un-encodable Unicode from the result. The base64 module have functions which helps to encode the text or binary data into base64 format and decode the base64 data into text or binary data. Using Python to decode strings: Decoding Base64 string is exactly opposite to that of encoding. There are various types of errors, some of which are mentioned below: Type of Errorĭefault behavior which raises UnicodeDecodeError on failure. This is actually not human-readable and is only represented as the original string for readability, prefixed with a b, to denote that it is not a string, but a sequence of bytes. This means that the string is converted to a stream of bytes, which is how it is stored on any computer. ![]() Although there is not much of a difference, you can observe that the string is prefixed with a b. ![]() NOTE: As you can observe, we have encoded the input string in the UTF-8 format. file open('file1.txt', 'rb') encodeddata file.read() file.close() decode base64 string data decodeddatabase64.b64decode( (encodeddata)) write the decoded data back to original format in file imgfile open('image.jpeg', 'wb') imgfile.write(decodeddata) imgfile.close() Input: Base64 string data stored in file1. Original string: This is a simple sentence.Įncoded string: b'This is a simple sentence.'
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