python functions list

list.append(x) # append x to end of list list.extend(iterable) # append all elements of iterable to list list.insert(i, x) # insert x at index i list.remove(x) # remove first occurance of x from list list.pop([i]) # pop element at index i (defaults to end of list) list.clear() # delete all elements from the list list.index(x[, start[, end]]) # return index of element x list.count(x) # return number of occurances of x in list list.reverse() # reverse elements of list in-place (no return) list.sort(key=None, reverse=False) # sort list in-place list.copy() # return a shallow copy of the list

python list functions

# Method	Description
# append()	Adds an element at the end of the list
# clear()	Removes all the elements from the list
# copy()	Returns a copy of the list
# count()	Returns the number of elements with the specified value
# extend()	Add the elements of a list (or any iterable), to the end of the current list
# index()	Returns the index of the first element with the specified value
# insert()	Adds an element at the specified position
# pop()	Removes the element at the specified position
# remove()	Removes the first item with the specified value
# reverse()	Reverses the order of the list
# sort()	Sorts the list
# Note: Python does not have built-in support for Arrays, but Py# Method	Description
# append()	Adds an element at the end of the list
# clear()	Removes all the elements from the list
# copy()	Returns a copy of the list
# count()	Returns the number of elements with the specified value
# extend()	Add the elements of a list (or any iterable), to the end of the current list
# index()	Returns the index of the first element with the specified value
# insert()	Adds an element at the specified position
# pop()	Removes the element at the specified position
# remove()	Removes the first item with the specified value
# reverse()	Reverses the order of the list
# sort()	Sorts the list

Posted by: Guest on April-08-2021

# True since 1,3 and 4 (at least one) is true l = [1, 3, 4, 0] print(any(l)) # False since both are False l = [0, False] print(any(l)) # True since 5 is true l = [0, False, 5] print(any(l)) # False since iterable is empty l = [] print(any(l))

# empty list print(list()) # vowel string vowel_string = 'aeiou' print(list(vowel_string)) # vowel tuple vowel_tuple = ('a', 'e', 'i', 'o', 'u') print(list(vowel_tuple)) # vowel list vowel_list = ['a', 'e', 'i', 'o', 'u'] print(list(vowel_list))

>>> fruits = ['orange', 'apple', 'pear', 'banana', 'kiwi', 'apple', 'banana'] >>> fruits.count('apple') 2 >>> fruits.count('tangerine') 0 >>> fruits.index('banana') 3 >>> fruits.index('banana', 4) # Find next banana starting a position 4 6 >>> fruits.reverse() >>> fruits ['banana', 'apple', 'kiwi', 'banana', 'pear', 'apple', 'orange'] >>> fruits.append('grape') >>> fruits ['banana', 'apple', 'kiwi', 'banana', 'pear', 'apple', 'orange', 'grape'] >>> fruits.sort() >>> fruits ['apple', 'apple', 'banana', 'banana', 'grape', 'kiwi', 'orange', 'pear'] >>> fruits.pop() 'pear'

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