Question: 
Write a function to remove even characters in a string.


Model's Code:
def remove_even(s):
    return ''.join(s[i] for i in range(len(s)) if i % 2 == 0)



Sample Correct Code:
def remove_even(str1):
 str2 = ''
 for i in range(1, len(str1) + 1):
    if(i % 2 != 0):
        str2 = str2 + str1[i - 1]
 return str2


Asserts:
assert remove_even("python")==("pto")
assert remove_even("program")==("porm")
assert remove_even("language")==("lnug")


Tests:
Test 1 of 3: PASS
Test 2 of 3: PASS
Test 3 of 3: PASS

Test 202 of 974: 149/202 (73.76237623762376%): success