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Coding Unicode Strings
Encoding and decoding become more meaningful when you start dealing with actual non-ASCII Unicode text. To code arbitrary Unicode characters in your strings, some of which you might not even be able to type on your keyboard, Python string literals support both "\xNN" hex byte value escapes and "\uNNNN" and "\UNNNNNNNN" Unicode escapes in string literals. In Unicode escapes, the first form gives four hex digits to encode a 2-byte (16-bit) character code, and the second gives eight hex digits for a 4-byte (32-bit) code.
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