Home/ Questions/Stabilizing the error with the best answers: typeerror: cannot concatenate 'str' and 'int' objects
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Margaret O'Brien
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Asked: 2022-05-18T15:49:44+00:00 In:

Stabilizing the error with the best answers: typeerror: cannot concatenate ‘str’ and ‘int’ objects

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I don’t know what I’m doing wrong, but I’ve already lost a couple of days struggling with this. Here is my command line:

a = raw_input("Enter a: ")
 b = raw_input("Enter b: ")
 print "a + b as strings: " + a + b
 a = int(a)
 b = int(b)
 c = a + b
 str(c)
 print "a + b as integers: " + c

This returns:

Python: TypeError: cannot concatenate 'str' and 'int' objects

I don’t have any experience with the “typeerror: cannot concatenate ‘str’ and ‘int’ objects.” In this case, how should I change?

cannot concatenate 'str' and 'int' objects
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2 Answers

  1. Best Answer
    Expert

    The cause: The issue can be produced by the last print statement.

    The solution: There are two options for resolving the issue. The result of the str(c) function can be assigned to c and then concatenate all of the strings or simply use the following to replace the last print:

    print "a + b as integers: ", c # note the comma here

    in which case

    str(c)

    is not required and can be removed.

    The following is the output of the sample run:

    Enter a: 3
Enter b: 7
a + b as strings: 37
a + b as integers: 10

    with:

    a = raw_input("Enter a: ")
b = raw_input("Enter b: ")
print "a + b as strings: " + a + b # + everywhere is ok since all are strings
a = int(a)
b = int(b)
c = a + b
print "a + b as integers: ", c
    • 14

  2. str(c) returns an new string representation for c and does not modify c. 

    c = str(c)

    This is most likely what you are searching for

    • 23

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