The assert function in python, a practical technique

The assert command in Python can be used to determine whether the value of the variable is consistent with the expected value

The sample program is as follows:

a = 4
assert a==4
print("There is no mistake")
# assert a==3
print("That's ok")

At this time, when the second assert function is used, comment it out first, because the actual value of a is consistent with the size of 4, so the program executes normally and completely.

But if the second assert function is uncommented:

a = 4
assert a == 4
print("There is no mistake")
assert a == 3
print("That's ok")

Then the program will report an error and will not execute subsequent codes

The execution results are as follows:

 The above is a brief introduction to the assert function.