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Merged
merged 10 commits into from
Nov 28, 2020
Merged

data_structures/linked_list: Adding __str__() function #3960 #3961

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5a3f3b9
Adding __str__() function
arif599 Nov 26, 2020
a68dbac
Removing white space
arif599 Nov 26, 2020
cf44661
Update data_structures/linked_list/__init__.py
arif599 Nov 26, 2020
9597382
Adding type hints
arif599 Nov 26, 2020
b1e97f2
Update __init__.py
arif599 Nov 26, 2020
5fb99fb
Update __init__.py
arif599 Nov 26, 2020
3cb86be
Adding the changes requested
arif599 Nov 27, 2020
8ff8d29
Updating to fix pre-commit
arif599 Nov 27, 2020
58f2c17
Updating __init__.py
arif599 Nov 27, 2020
bc386e6
Updating __init__.py
arif599 Nov 28, 2020
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20 changes: 20 additions & 0 deletions data_structures/linked_list/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,26 @@ def remove(self):
def is_empty(self):
return self.head is None

def __str__(self):
"""
>>> linked_list = LinkedList()
>>> linked_list.add(23)
>>> linked_list.add(14)
>>> linked_list.add(9)
>>> print(linked_list)
9 --> 14 --> 23 -->
"""
if not self.is_empty:
return "Linked List is empty."
else:
iterate = self.head
iteam_str = ""
while iterate:
iteam_str += f"{iterate.item} --> "
iterate = iterate.next

return iteam_str

def __len__(self):
"""
>>> linked_list = LinkedList()
Expand Down