PYTHON

convert list of strings to ints python

test_list = ['1', '4', '3', '6', '7'] 

int_list = [int(i) for i in test_list]

list of strings to numbers python

test_list = ['1', '4', '3', '6', '7']
test_list = list(map(int, test_list))

python convert list of strings to list of integers

# Basic syntax:
list_of_ints = [int(i) for i in list_of_strings]

# Example usage with list comprehension:
list_of_strings = ['2', '3', '47']
list_of_ints = [int(i) for i in list_of_strings]
print(list_of_ints)
--> [2, 3, 47]

python string to list of int

>>> example_string = '0, 0, 0, 11, 0, 0, 0, 0, 0, 19, 0, 9, 0, 0, 0, 0, 0, 0, 11'
>>> list(map(int, example_string.split(',')))  # Python 3, in Python 2 the list() call is redundant
[0, 0, 0, 11, 0, 0, 0, 0, 0, 19, 0, 9, 0, 0, 0, 0, 0, 0, 11]
>>> [int(s) for s in example_string.split(',')]
[0, 0, 0, 11, 0, 0, 0, 0, 0, 19, 0, 9, 0, 0, 0, 0, 0, 0, 11]

change string list to int list python

Use the map function (in Python 2.x):
results = map(int, results)

In Python 3, you will need to convert the result from map to a list:
results = list(map(int, results))

python string to list of int

[int(s) for s in example_string.split(',')]

String list to Integer list

List<String> stringList = new ArrayList<String>(Arrays.asList("10", "30", "40",
            "50", "60", "70"));
List<Integer> integerList = stringList.stream()
            .map(Integer::valueOf).collect(Collectors.toList());

python convert list of lists of strings to int

# Example usage using list comprehension:
# Say you have the following list of lists of strings and want integers
x = [['565.0', '575.0'], ['1215.0', '245.0'], ['1740.0', '245.0']]
list_of_integers = [[int(float(j)) for j in i] for i in x]

print(list_of_integers)
--> [[565, 575], [1215, 245], [1740, 245]]

# Note, if the strings don't have decimals, you can omit float()

converting list of string into integers

lis = ['1', '-4', '3', '-6', '7']
res = [eval(i) for i in lis]
print("Modified list is: ", res)