how to extract digits from a number in python and put in list code example
Example: how to extract numbers from a list in python
a = ['1 2 3', '4 5 6', 'invalid']
numbers = []
for item in a:
for subitem in item.split():
if(subitem.isdigit()):
numbers.append(subitem)
print(numbers)
['1', '2', '3', '4', '5', '6']