On Fri, 11 Aug 2017 12:54 pm, Mikhail V wrote:

> but at a first glance, "while" reads as "if" as in english.

In English the two words don't mean the same thing.

That's why 

if foo:


while foo:

are different.

“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.


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