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fixme2.py

  • Description: Fix the syntax error in this Python script to print the flag.
  • Difficulty: Easy

🔎 Solution​

This challenge focuses on debugging a Python script. When running the program, it immediately throws an error at line 22: invalid syntax.

┌──(kali㉿kali)-[~/Desktop]
└─$ python fixme2.py  
  File "/home/kali/Desktop/fixme2.py", line 22
    if flag = "":
       ^^^^^^^^^
SyntaxError: invalid syntax. Maybe you meant '==' or ':=' instead of '='?

In Python, conditional statements like if require the comparison operator == to test equality. The error at line 22 occurs because a single = is mistakenly used instead of ==.

if flag == "":
  print('String XOR encountered a problem, quitting.')
else:
  print('That is correct! Here\'s your flag: ' + flag)

Fixing this syntax mistake and rerunning the script reveals the flag.

┌──(kali㉿kali)-[~/Desktop]
└─$ python fixme2.py  
That is correct! Here's your flag: picoCTF{3qu4l1ty_n0t_4551gnm3nt_4863e11b}

🚩Flag​

picoCTF{3qu4l1ty_n0t_4551gnm3nt_4863e11b}