string - traceback error - python -

my code working find on win machine , python 3.6 try code on mac - terminal , showing me error. have install latest version of python code:

print ("==================================") print ("    print string character    ") print ("==================================")  word_secund = input("please add word: ") word_one = str(word_secund)  def list(text):     word = 0     word in text:         print(word) print (list(word_one)) 

error message:

please add word: slavo traceback (most recent call last):   file "strings.py", line 5, in <module>     word_secund = input("please add word: ")   file "<string>", line 1, in <module> nameerror: name 'slavo' not defined 

this error happens python2. note on mac , linux, default python python2. try run program command

python3 yourfile.py 

to avoid error.