Python data Types-notes for the Python 3 Program development Guide

Reference: "Python 3 Program Development Guide"

integer Conversion Functions :

Bin (i)	Returns the binary representation of the integer I (string)
Hex (i)	Returns the hexadecimal representation of I (String)
int (x)	Converts an X to an integer, fails to produce an ValueError exception, the data type of x does not know that the conversion of an integer produces an typeerror exception, and X is a floating-point number to intercept an integral part
Int (x,base)	Converts the x represented by the base into decimal, such as int (' 74 ', 8) returns 60,int (' A4 ', 16) returns 164
Oct (i)	Returns the octal representation of I, such as the OCT (10) = = ' 012 '

String slices:

There are 3 types of syntax for slicing operations:

Seq[start]

Seq[start:end]

Seq[start:end:step]

SEQ can be any sequence, such as a list, a string, or a meta-ancestor

>>> s= ' The waxwork man ' >>> s = s[:12] + ' wo ' + s[12:]>>> s ' The waxwork woman ' >>> s[::- 1] ' Namow krowxaw EhT '

Python data Types-notes for the Python 3 Program development Guide