Earlier quoted context omitted.
I feel that Python will be known in the future as the language that caused a generation to have a crippled sense of reasoning about how to design computer programs. It's lack of a normal, standard scoping model alone teaches a very flawed reasoning about computer programs.
It's lack of a normal, standard scoping model alone teaches a very flawed reasoning about computer programs. Scoping in class definitions is weird, yes. But is that your complaint? What's wrong with the scoping model in general?
That for-loops work by assignment rather than creating a new scope, or that if-conditions do not create a new scope for their arms is most unusual.
Not only does it not teach programmers to properly reason about scope, but it results into subtle bugs that are easy to miss. Consider the following:
list = []
for x in iterator:
list.append(lambda y: some_code_that_closes_over(x))
The proper way do it is by using the fact that functions do create a scope:
list = []
def loop_function(x):
list.append(lambda y: some_code_that_coses_over(x))
for x in iterator:
loop_function(x)