[Chicago] Now I get it.
William E. S. Clemens
wesclemens at gmail.com
Tue Jun 16 06:29:49 CEST 2015
Although Python does lack some classic control flows notably do-while and
switch-case, it offers plenty of other uniq control flows. I often use a
else statement with a for loop. Python also offers list and
dictionary comprehension.
https://docs.python.org/3.5/tutorial/controlflow.html
https://docs.python.org/2/tutorial/datastructures.html#list-comprehensions
I would also suggest that you can easily implement a do-while like such:
while True:
pass # Do Stuff
if condition: break # Our do statement
Switch-cases are a little tricky. Most the time a if ... elif ... else
works just fine, although this is a bit limiting if you want to use a fall
through condition. A neat trick that you can do with python is use a
dictionary as a switch-case.
def foo():
print("foo")
def bar():
print("bar")
def baz():
print("default baz")
map = {
"Blue": foo,
"Red": bar
}
map.get("Red", baz)() # bar
map.get("Yellow", baz)() # default baz
This has the added advantage that you can dynamically build out
the dictionary map.
--
William Clemens
Phone: 847.485.9455
E-mail: wesclemens at gmail.com
On Mon, Jun 15, 2015 at 10:55 PM, Lewit, Douglas <d-lewit at neiu.edu> wrote:
> if __name__ = "__main__":
> etc.
> etc.
> etc.
>
> Now I get it. Do you want to just import the methods from your .py file?
> Or do you want to actually run the program directly? Cool stuff!
>
> Best,
>
> Douglas.
>
> P.S. Any thoughts on Ruby guys? I've been messing around with it
> lately. Sort of Python-like, but it actually offers more constructs than
> Python. For example, Ruby has a do-while loop and Ruby offers two
> different ways to represent ranges, one with the upper limit included and
> the other with the upper limit excluded--as in Python. But Ruby has a very
> "Pythonic" feel to it.
>
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