[Python] image processing

This is an assignment, i have put good effort since i am new to python programming:

I am running the following function which takes in image and phrase (spaces will be removed so just text) as arguments, i have already been given all the import and preprocessing code, i just need to implement this function. I can only use getpixel, putpixel, load, and save. That is why coding this has been a hard task for me.

def InsertoImage(srcImage, phrase):
pix = srcImage.load()
for index,value in enumerate(phrase):
pix[10+index,15] = phrase[index]
srcImage.save()
pass


This code is giving "system error" which says that "new style getargs format but argument is not tuple"

C:\Users\Nave\Desktop\a1>a1_template.py lolmini.jpg Hi
Traceback (most recent call last):
File "C:\Users\Nave\Desktop\a1\a1_template.py", line 31, in <module>
doLOLImage(srcImage, phrase)
File "C:\Users\Nave\Desktop\a1\a1_template.py", line 23, in doLOLImage
pix[10+index,15] = phrase[index]
SystemError: new style getargs format but argument is not a tuple


here is full code:

from __future__ import division

# letters, numbers, and punctation are dictionaries mapping (uppercase)
# characters to Images representing that character
# NOTE: There is no space character stored!
from imageproc import letters, numbers, punctuation, preProcess

# This is the function to implement
def InserttoImage(srcImage, phrase):
pix = srcImage.load()
for index,value in enumerate(phrase):
if value in letters:
pix[10+index, 15] = letters[value]
elif value in numbers:
pix[10+index, 15] = numbers[value]
elif value in punctuation:
pix[10+index, 15] = punctuation[value]
srcImage.save()
pass

# This code is performed when this script is called from the command line via:
# 'python <name of this file>.py'
if __name__ == '__main__':
srcImage, phrase = preProcess()
InserttoImage(srcImage, phrase)


Thanks, letter, numbers, and punctuation are dictionaries which see the key element and open the image (font). But still there is an issue with pix[10+index, 15] as it is giving error:

pix[10+index, 15] = letters[value]
SystemError: new style getargs format but argument is not a tuple

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