Python's equivalent to java's Stream.iterate
I'm traversing an abstract Node, which has a parent property, in python script until i hit None. What I need is a one-liner for this generator:
def parents(node):
next = node
while next.parent:
next = next.parent
yield next
I don't mind using the generator above but I'm sure that functional programming has a better solution for that
python functional-programming
asked Jan 19 at 9:25
NEGR KITAECNEGR KITAEC
1097
add a comment |
I'm traversing an abstract Node, which has a parent property, in python script until i hit None. What I need is a one-liner for this generator:
def parents(node):
next = node
while next.parent:
next = next.parent
yield next
I don't mind using the generator above but I'm sure that functional programming has a better solution for that
python functional-programming
asked Jan 19 at 9:25
NEGR KITAECNEGR KITAEC
1097
Does the code you posted even work without raising an error? You never check if node/next is None before doing the property access.
– Jared Smith
Jan 19 at 19:06
This is a prototype. Of course I might check it in working code
– NEGR KITAEC
Jan 19 at 19:37
add a comment |
I'm traversing an abstract Node, which has a parent property, in python script until i hit None. What I need is a one-liner for this generator:
def parents(node):
next = node
while next.parent:
next = next.parent
yield next
I don't mind using the generator above but I'm sure that functional programming has a better solution for that
python functional-programming
asked Jan 19 at 9:25
NEGR KITAECNEGR KITAEC
1097
I'm traversing an abstract Node, which has a parent property, in python script until i hit None. What I need is a one-liner for this generator:
def parents(node):
next = node
while next.parent:
next = next.parent
yield next
I don't mind using the generator above but I'm sure that functional programming has a better solution for that
python functional-programming
python functional-programming
asked Jan 19 at 9:25
NEGR KITAECNEGR KITAEC
1097
asked Jan 19 at 9:25
NEGR KITAECNEGR KITAEC
1097
asked Jan 19 at 9:25
NEGR KITAECNEGR KITAEC
1097
asked Jan 19 at 9:25
NEGR KITAECNEGR KITAEC
1097
asked Jan 19 at 9:25
NEGR KITAECNEGR KITAEC
1097
1097
Does the code you posted even work without raising an error? You never check if node/next is None before doing the property access.
– Jared Smith
Jan 19 at 19:06
This is a prototype. Of course I might check it in working code
– NEGR KITAEC
Jan 19 at 19:37
add a comment |
Does the code you posted even work without raising an error? You never check if node/next is None before doing the property access.
– Jared Smith
Jan 19 at 19:06
This is a prototype. Of course I might check it in working code
– NEGR KITAEC
Jan 19 at 19:37
Does the code you posted even work without raising an error? You never check if node/next is None before doing the property access.
– Jared Smith
Jan 19 at 19:06
Does the code you posted even work without raising an error? You never check if node/next is None before doing the property access.
– Jared Smith
Jan 19 at 19:06
This is a prototype. Of course I might check it in working code
– NEGR KITAEC
Jan 19 at 19:37
This is a prototype. Of course I might check it in working code
– NEGR KITAEC
Jan 19 at 19:37
add a comment |
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Does the code you posted even work without raising an error? You never check if node/next is None before doing the property access.
– Jared Smith
Jan 19 at 19:06
This is a prototype. Of course I might check it in working code
– NEGR KITAEC
Jan 19 at 19:37