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Python | Convert Stream of numbers to list
  • Last Updated : 04 Jul, 2019

Sometimes, we can be stuck with a problem in which we are given a stream of space separated numbers with a goal to convert them into a list of numbers. This type of problem can occur in common day-day programming or competitive programming while taking inputs. Let’s discuss certain ways in which this problem can be solved.

Method #1 : Using list() + split()
The space separated numbers can be converted to list by using a simple split function that would convert the string to list of numbers and hence solve our problem.




# Python3 code to demonstrate working of
# Convert Stream of numbers to list
# Using list() + split()
  
# initializing string 
test_str = "10 12 3 54 6 777 443"
  
# printing original string 
print("The original string is : " + test_str)
  
# Using list() + split()
# Convert Stream of numbers to list
res = list(test_str.split())
  
# printing result 
print("The list of stream of numbers : " + str(res))
Output :
The original string is : 10 12 3 54 6 777 443
The list of stream of numbers : ['10', '12', '3', '54', '6', '777', '443']

 

Method #2 : Using map() + split() + list()
Since the drawback of above method is that the conversion doesn’t change the datatype of the unit numbers, so if it’s desired to change the data type of number as well, it is suggested to additionally use map() to have list of strings as integers.






# Python3 code to demonstrate working of
# Convert Stream of numbers to list
# Using map() + split() + list()
  
# initializing string 
test_str = "10 12 3 54 6 777 443"
  
# printing original string 
print("The original string is : " + test_str)
  
# Using map() + split() + list()
# Convert Stream of numbers to list
res = list(map(int, test_str.split()))
  
# printing result 
print("The list of stream of numbers : " + str(res))
Output :
The original string is : 10 12 3 54 6 777 443
The list of stream of numbers : [10, 12, 3, 54, 6, 777, 443]

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