Util class

class crsyspqc.Util

Utilities for strings, etc.

static substring(s, start, length)

Extract a substring of a string.

Parameters:

• s (str) – Source string.

• start (int) – Start index (0 is the first character in the string). A negative value means count backwards from end of string.

• length (int) – Length of substring to extract (specify 0 to indicate all characters to end of string).

Returns:

Extracted substring.

Return type:

str