Python Data Structure
Post Date : 2024-06-08T11:34:07+07:00
Modified Date : 2024-06-08T11:34:07+07:00
Category: python-tutorial
Tags:
Theory
1. Tuple
- A kind of data structure
- Ordered, Immutable, Allow Duplicate Values
- Start and end with parentheses: (1, “a”, (2, “b”), 3, “c”)
2. List
- A kind of data structure
- Ordered, Mutable, Allow Duplicate Values
- Start and end with square brackets: [1, “a”, [2, “b], 3, “c”]
Practice
tp = (1, "a", (2, "b"), 3, "c")
tp_matrix = (("a", "b"), ("c", "d"), ("e", "f"))
print(tp_matrix[0][0].upper())
ls = [1, "a", [2, "b"], 3, "c"]
ls_matrix = [["a1", "a2", "a3"], ["b1", "b2", "b3"], ["c1", "c2", "c3"]]
ls_matrix[0][0] = ls_matrix[0][0].upper()
print(ls_matrix)
# concatenation
tp2 = tp + (4, "d")
print(tp2)
ls[3] = ls[2] + [22, "bb"]
print(ls)
# extend
ls.extend([[4, "d"], [44, "dd"]])
print(ls)
ls.append([5, "e"])
print(ls)
del (ls[0])
print(ls)
# alias and reference value, clone
ls1 = [3, 2, 1]
ls2 = ls1
ls3 = ls1[:] # clone
ls1.sort()
print(ls1)
print(ls2)
print(ls3)
# help
help(ls1)