Python Escape Sequences, Text, and Unicode Characters

Since Python 3.0, strings are stored as Unicode, where each character in the string is represented by a unique number called a code point. For example, the character ‘J' has the code point decimal value of 74. There is more than 1 million code points in the Unicode standard character set. For efficient storage of these strings, encoding converts the sequence of code points into a set of bytes.

Python has the following escape sequences
\n - new line
\t – tab or indent
\’ – single quote
\” - double quote
\\ - backslash

You can ignore escape sequences by using a raw string. A raw string is created by adding an 'r' before a string literal, as in r'this is a test\'', which would output as this is a test\’.

Converting between a text character and it’s encoded value may be useful. The built-in ord() function returns an encoded integer value for a string of length one. The built-in chr() function returns a single character string for an encoded integer.

Ex: chr(75) returns K
Ex: ord(‘B’) returns 66

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[vkhan]

Nice quick tutorial. Great demo. Thanks!