For example, I have this code:
a = 33
b = 200
if b > a:
# do some thing
I want to switch the > sign without using the else/if-else condition to == or <, is there a way I can store logic condition in a variable x and do something like:
if b x a:
# do something
You can use operator.lt(a, b) or operator.gt(a, b) or operator.eq(a,b).
import operator
a = 33
b = 200
x = operator.lt
if x(a,b):
print("hello world")
Provided they are just numbers (integers or floats), you could multiply both arguments by positive or negative 1, which switches the < sign
a = 5
b = 6
direction = -1
if direction * a < direction * b:
# do something
pass
Note this is a mathematical solution rather than a programming one
You can try using the eval built-in function
eval
>>> a = "5"
>>> b = "*"
>>> c="1"
>>> eval(a+b+c)
5
>>> d = ">"
>>> eval(a+d+c)
True
Similar thread:assign operator to variable in python?
For this use-case you could get some inspiration from the "spaceship operator" (three-way comparison on Wikipedia) available in Perl or PHP.
def cmp3w(a, b):
if a == b:
return 0
return -1 if a < b else 1
Then the meaning of cmp3w(a,b) == x condition depends on the variable x (+1 for gt, 0 for eq, -1 for lt).