Detailed explanation of type conversion methods in python

int(x [,base ]) Convert x to a integer

long(x [,base ]) Convert x to a long integer

float(x ) Convert x to a floating point number

complex(real [,imag ]) Create a complex number

str(x ) Convert object x Convert to string

repr(x ) Convert object x to Expression String

eval(str ) Used Evaluates a valid Python expression in a string and returns an object

tuple(s) Converts the sequence s into a tuple

list(s) Convert sequence s to a list

chr(x) Convert an integer to a character

unichr(x) Convert an integer to Unicode characters

ord(x) Convert a character to its integer value

hex(x) Convert an integer to a hexadecimal string

oct(x) Convert an integer to an octal string

The sequence supports the following operations:

Operation description

s + r Sequence connection

s * n, n * s n copies of s, n is an integer

s % d String formatting (only strings)

s [i] Index

s[i :j ] Slice

x in s , x not in s Dependency relationship

for x in s : Iteration

len(s) length

min(s) minimum element

max(s) maximum element

s[i] = x is s [i] Reassign

s[i :j ] = r Reassign the list fragment

del s[i ] Delete an element in the list

del s[i :j ] Delete a segment in the list

Operation description

s + r Sequence connection

s * n, n * s n copies of s, n is an integer

s % d string formatting (string only)

s[i] index

s[i :j ] slice

x in s , x not in s dependency relationship

for x in s: iteration

len(s) length

min(s) minimum element

max(s ) Maximum element

s[i ] = x Reassign s[i]

s[i :j ] = r Reassign the list fragment

del s[ i ] Delete an element in the list

del s[i :j ] Delete a fragment in the list

Numeric operation:

x << y shift left

x >> y Right shift

x & y Bitwise AND

x | y Bitwise OR

x ^ y Bitwise XOR( exclusive or)

~x Bitwise flip

x + y Add

x - y Subtract

x * y Multiply

x / y regular division

x // y floor division

x ** y raised to power(xy)

x % y modulo(x mod y)

-x Change the sign bit of the operand

+x Do nothing

~x ~x=-(x+1)

abs(x ) Absolute value

divmod(x ,y ) Returns (int(x / y ), x % y )

pow(x ,y [,modulo ]) Returns (x ** y ) x % modulo

round(x ,[n]) Rounding, n is the number of decimal places

x < y is less than

x > y is greater than

x == y is equal to

x != y is not equal to (same as <>)

x >= y is greater than or equal to

x < = y is less than or equal to

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