Is it possible in python to write a lambda function that does not need any parameters passed to it? For instance, is there a way to translate this function:
def file_opener():
f = open('filename.txt').read()
return f
or any other function with no passed input into a lambda expression?
You certainly can do it..
x = lambda : 6
print(x()) # prints -> 6
You probably shouldn't though. Once you feel the need to bind a function to a variable name you should go the long road instead (def ..
) as you do it in your example.