If statement in lambdas Python

Question

I wanted to declare an if statement inside a lambda function:

Suppose:

cells = ['Cat', 'Dog', 'Snake', 'Lion', ...]
result = filter(lambda element: if 'Cat' in element, cells)

Is it possible to filter out the 'cat' into result?

Answer 1

If you want to filter out all the strings that have 'cat' in them, then just use

>>> cells = ['Cat', 'Dog', 'Snake', 'Lion']
>>> filter(lambda x: not 'cat' in x.lower(), cells)
['Dog', 'Snake', 'Lion']

If you want to keep those that have 'cat' in them, just remove the not.

>>> filter(lambda x: 'cat' in x.lower(), cells)
['Cat']

You could use a list comprehension here too.

>>> [elem for elem in cells if 'cat' in elem.lower()]
['Cat']