The information on this page is in four parts including general ASCII information, conversions of the non-printable control characters, conversions of the printable ASCII characters, and a keyboard input for printable ASCII character conversion. An acronym for American Standard Code for Information Interchange, this is the most common code for text on computers. In common usage, ASCII means a text file 115 in binary option doesn’t include any formatting. Text editors and word processors are usually capable of storing data in ASCII format, although ASCII format is not always the default storage format.
Most data files, particularly if they contain numeric data, are not stored in ASCII format unless there is a need for easy and quick interchange with several types of systems that access that data. The standard ASCII character set uses only 7 bits of the 8 bit byte for each character. There are several larger character sets that use all 8 bits of the byte, which gives them an 128 additional characters in the set. The extra characters are used to represent characters not used in the English language, graphics characters or symbols, and mathematical representations or symbols. O devices, printer or other peripherals to do something.
You generate these characters on the keyboard by holding down the Control key while you strike another key. ASCII Control Characters The following table lists ASCII Control codes in octal, decimal, hexadecimal and their corresponding Control-key combinations. This value is not locale-dependent and will not change. The specific value is locale-dependent, and will be updated when locale. A string containing all the characters that are considered lowercase letters.
String of characters which are considered printable. A string containing all the characters that are considered uppercase letters. A string containing all characters that are considered whitespace. On most systems this includes the characters space, tab, linefeed, return, formfeed, and vertical tab. The built-in str and unicode classes provide the ability to do complex variable substitutions and value formatting via the str.
It takes a format string and an arbitrary set of positional and keyword arguments. This function does the actual work of formatting. It calls the various methods described below. The values in the tuple conceptually represent a span of literal text followed by a single replacement field. The key argument will be either an integer or a string. Subsequent components are handled through normal attribute and indexing operations. Implement checking for unused arguments if desired.
The method is provided so that subclasses can override it. Anything that is not contained in braces is considered literal text, which is copied unchanged to the output. In less formal terms, the replacement field can start with a field_name that specifies the object whose value is to be formatted and inserted into the output instead of the replacement field. The field_name is optionally followed by a conversion field, which is preceded by an exclamation point ‘! These specify a non-default format for the replacement value.
The field_name itself begins with an arg_name that is either a number or a keyword. If it’s a number, it refers to a positional argument, and if it’s a keyword, it refers to a named keyword argument. The arg_name can be followed by any number of index or attribute expressions. An expression of the form ‘. The positional argument specifiers can be omitted for str. First element of keyword argument ‘players’. The conversion field causes a type coercion before formatting.
However, in some cases it is desirable to force a type to be formatted as a string, overriding its own definition of formatting. Two conversion flags are currently supported: ‘! The format_spec field contains a specification of how the value should be presented, including such details as field width, alignment, padding, decimal precision and so on. Most built-in types support a common formatting mini-language, which is described in the next section. A format_spec field can also include nested replacement fields within it. These nested replacement fields may contain a field name, conversion flag and format specification, but deeper nesting is not allowed.
The replacement fields within the format_spec are substituted before the format_spec string is interpreted. This allows the formatting of a value to be dynamically specified. Each formattable type may define how the format specification is to be interpreted. Most built-in types implement the following options for format specifications, although some of the formatting options are only supported by the numeric types.