|
Addition
|
9 + 2 |
>> 11 |
|
Subtraction
|
9 - 2 |
>> 7 |
|
Multiplication
|
9 * 2 |
>> 18 |
|
Division
|
9 / 2 |
>> 4.5 |
|
Modulus
|
9 % 2 |
>> 1 |
|
Exponentiation
|
3 ** 2 |
>> 81 |
|
Floor division
|
9 // 2 |
>> 4 |
|
Operator
|
Example
|
Same As
|
|
=
|
x = 2 |
x = 2 |
|
+=
|
x += 2 |
x = x + 2 |
|
-=
|
x -= 2 |
x = x - 2 |
|
*=
|
x *= 2 |
x = x * 2 |
|
/=
|
x /= 2 |
x = x / 2 |
|
%=
|
x %= 2 |
x = x % 2 |
|
//=
|
x //= 2 |
x = x // 2 |
|
**=
|
x **= 2 |
x = x ** 2 |
|
Equal
|
x == y |
|
Not equal
|
x != y |
|
Greater than
|
x > y |
|
Less than
|
x < y |
|
Greater than or equal to
|
x >= y |
|
Less than or equal to
|
x <= y |
|
In programming you often need to know if an expression is
True or False. You can evaluate any expression in Python, and get the answer. |
|
print(5 < 8) |
>>> True |
print(5 > 8) |
>>> False |
|
and
|
Returns True if both statements are true
|
x < 5 and x < 10 |
|
|
or
|
Returns True if one of the statements is true
|
x < 5 or x < 4 |
|
|
not
|
Reverse the result, returns False if the result is true
|
not(x < 5 and x < 10) |
|
|
is
|
Returns true if both variables are the same object
|
x is y |
|
|
is not
|
Returns true if both variables are not the same object
|
x is not y |
|
|
in
|
Returns True if a sequence with the specified value is present in the object
|
x in y |
|
|
not in
|
Returns True if a sequence with the specified value is not present in the object
|
x not in y |
|
& |
AND
|
Sets each bit to 1 if both bits are 1
|
| |
OR
|
Sets each bit to 1 if one of two bits is 1
|
^ |
XOR
|
Sets each bit to 1 if only one of two bits is 1
|
~ |
NOT
|
Inverts all the bits
|
<< |
Zero fill left shift
|
Shift left by pushing zeros in from the right and let the leftmost bits fall off
|
>> |
Signed right shift
|
Shift right by pushing copies of the leftmost bit in from the left, and let the rightmost bits fall off
|
Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
