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Jan 17, 2011 · This means that the size of the base-64 representation of a string of size n is: ceil(n / 3) * 4. So, for a 16kB array, the base-64 representation will be ceil (16*1024/3)*4 = 21848 bytes long ~= 21.8kB. A rough approximation would be that the size of the data is increased to 4/3 of the original. edited Feb 14, 2017 at 16:34.
Oct 14, 2008 · Hexadecimal: store the bytes as hex pairs: AC 47 0D 1A etc. where each byte is represented by 2 bytes. The data bloats two-fold. Base-64 maps 3 bytes (8 x 3 = 24 bits) in 4 characters that span 6-bits (6 x 4 = 24 bits). The result looks something like "TWFuIGlzIGRpc3Rpb...". Therefore the bloating is only a mere 4/3 = 1.3333333 times the original.
17 hours ago · Encode the bytes-like object s, which can contain arbitrary binary data, and return bytes containing the base64-encoded data, with newlines (b'\n') inserted after every 76 bytes of output, and ensuring that there is a trailing newline, as per RFC 2045 (MIME).
Aug 7, 2024 · Using Python to decode strings: Decoding Base64 string is exactly opposite to that of encoding. First we convert the Base64 strings into unencoded data bytes followed by conversion into bytes-like object into a string. The below example depicts the decoding of the above example encode string output. Example: Python3 1==.
Sep 19, 2024 · Per the Python docs, they are intended explicitly for RFC 2045, i.e. MIME: Encode the bytes-like object s, which can contain arbitrary binary data, and return bytes containing the base64-encoded data, with newlines (b'\n') inserted after every 76 bytes of output, and ensuring that there is a trailing newline, as per RFC 2045 (MIME).
Encoding data in Base64 using Python is straightforward thanks to the built-in base64 library. Here’s how you can encode a string into Base64: # Original data. data = "Hello, World!" # Encoding the data to bytes. # Encoding to Base64. print (base64_encoded.decode('utf-8')) # Output: SGVsbG8sIFdvcmxkIQ==.
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Conclusion. Base64 is an encoding mechanism that allows to convert to string long sequences of bytes, it has two supported implementations in Python, standart and urlsafe. Base64 is not a compresion algorithm but it can be combined with the zipfile module to compress bytes or files and then encode them to base64.
