How to replace string in a file with value of variable using python and save updated content as new file

Question

Trying to update string in file with value generated by my code not sure what is the best way to do so.

from datetime import datetime

import sys
import time
today = datetime.today().strftime('%m/%d/%Y')
a = 546
color = "#F1C40F"
replacements = {'SCORE':'{}', 'CURRDATE':'{}', 'COLORCODE':'{}'}.format(a, today, color)

with open('/home/kali/Desktop/template.txt') as infile, open('/home/kali/Desktop/updatedtemplate.txt', 'w') as outfile:
    for line in infile:
        for src, target in replacements.items():
            line = line.replace(src, target)
        outfile.write(line)

Traceback (most recent call last): File "/home/kali/Desktop/replace.py", line 8, in <module> replacements = {'CYBERSCORE':'{}', 'CURRDATE':'{}', 'COLORCODE':'{}'}.format(a, today, color) AttributeError: 'dict' object has no attribute 'format' — user3754136
– user3754136, Commented Sep 26, 2022 at 19:19
you can't format dictionaries. use this replacements = {'SCORE':a, 'CURRDATE':today, 'COLORCODE':color} instead of this ` replacements = {'SCORE':'{}', 'CURRDATE':'{}', 'COLORCODE':'{}'}.format(a, today, color)` — Dmitriy Neledva
– Dmitriy Neledva, Commented Sep 26, 2022 at 19:21

Hakan Müştak · Accepted Answer · 2022-09-26 19:21:53Z

1

'dict' object has no attribute 'format' , so replacement is defined incorrectly.

If you change it like this, it will be fine.

replacements = {'SCORE': a, 'CURRDATE': today, 'COLORCODE': color}

answered Sep 26, 2022 at 19:21

Hakan Müştak

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2 Comments

user3754136 Over a year ago

Tried that but that is replacing CURRDATE with today what i am trying is to replace CURRDATE with value in today that is 09/27/2022

Hakan Müştak Over a year ago

for date you should use it like this import datetime and today = datetime.date.today().strftime("%m/%d/%Y")

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