assert syntax python
assert <condition>,<error message>
#The assert condition must always be True, else it will stop execution and return the error message in the second argument
assert 1==2 , "Not True" #returns 'Not True' as Assertion Error.assert syntax python
assert <condition>,<error message>
#The assert condition must always be True, else it will stop execution and return the error message in the second argument
assert 1==2 , "Not True" #returns 'Not True' as Assertion Error.assert keyword in python
The assert keyword is used when debugging code.
The assert keyword lets you test if a condition in your code returns
True, if not, the program will raise an AssertionError.
You can write a message to be written if the code returns False, check
the example below.
x = "hello"
#if condition returns False, AssertionError is raised:
assert x == "goodbye", "x should be 'hello'"python assert
def input_age(age):
try:
assert int(age) > 18
except ValueError:
return 'ValueError: Cannot convert into int'
else:
return 'Age is saved successfully'
print(input_age('23')) # This will print
print(input_age(25)) # This will print
print(input_age('nothing')) # This will raise ValueError which is handled
print(input_age('18')) # This will raise AssertionError, program collapses
print(input_age(43)) # This won't printpython assert
assert False, "Oh no! This assertion failed!"how to use assert in python
assert type(num) is int,"num must be an integer"isinstance in python
x == 1
isinstance(x<3)
#will automatically return true or falseCopyright © 2021 Codeinu
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