Syntax change about patterns

[Suor]

I see no point so far. See comment in gist

[ir4y]

If you want more complicated logic.

@patterns
def list_sum():
    with [x]+xs:        
        if x in str: list_sum([int(x)]+xs)
        if x > 10: x + list_sum(xs)       

[Suor]

@patterns
def list_sum():
    if [x is str] + xs: list_sum([int(x)]+xs)
    if [x > 10] + xs: x + list_sum(xs) 

[Suor]

There are some cases when you need nest conditionals:

@patterns
def list_sum():
    with [x] + xs:
        if x is int: x
        if len(x) < 10: 1
        if len(x) >= 20: 2

But you can always use natural python ifs in "magic if" body:

@patterns
def list_sum():
    if [x] + xs:
        if isinstance(x, int): x
        if len(x) < 10: 1
        if len(x) >= 20: 2

or

@patterns
def list_sum():
    if [x is int] + xs: x
    if [x] + xs:
        if len(x) < 10: 1
        if len(x) >= 20: 2

So I see little value in imbuing more magic this way. Closed until some better use cases come up.