🐛 Bug Report: AttributeError: type object 'datetime.datetime' has no attribute 'fromisoformat'

[anskrish]

👟 Reproduction steps

airiam find_unused

:~# airiam find_unused

     ____      __           _____      ____     __        __
    / __ \    |__|  _  ____|_   _|    / __ \   |   \    /   |
   / /  \ \    __  | |/ ___| | |     / /  \ \  | |\ \  / /| |
  / /____\ \  |  | |   /     | |    / /____\ \ | | \ \/ / | |
 /  ______  \_|  |_|  |     _| |_  /  ______  \  |  \  /  | |
/_/        \_\_____|__|    |_____|/_/        \_\_|   \/   |_|
v0.1.64 

AirIAM - Least privilege AWS IAM Terraformer

To continuously scan configurations, try the Bridgecrew free community plan.
https://www.bridgecrew.io

INFO:botocore.credentials:Found credentials in environment variables.
Reusing local data
Traceback (most recent call last):
  File "/usr/local/bin/airiam", line 5, in <module>
    run()
  File "/usr/local/lib/python3.6/dist-packages/airiam/main.py", line 29, in run
    runtime_results = find_unused(logger, args.profile, args.no_cache, args.last_used_threshold, args.command)
  File "/usr/local/lib/python3.6/dist-packages/airiam/find_unused/find_unused.py", line 55, in find_unused
    unused_users, used_users = find_unused_users(account_users, credential_report, unused_threshold)
  File "/usr/local/lib/python3.6/dist-packages/airiam/find_unused/find_unused.py", line 83, in find_unused_users
    days_from_today(credentials.get('access_key_1_last_used_date', 'N/A')),
  File "/usr/local/lib/python3.6/dist-packages/airiam/find_unused/find_unused.py", line 249, in days_from_today
    date = dt.datetime.fromisoformat(str_date_from_today)
AttributeError: type object 'datetime.datetime' has no attribute 'fromisoformat'

👍 Expected behavior

it should generate a report

👎 Actual Behavior

:~# airiam find_unused

     ____      __           _____      ____     __        __
    / __ \    |__|  _  ____|_   _|    / __ \   |   \    /   |
   / /  \ \    __  | |/ ___| | |     / /  \ \  | |\ \  / /| |
  / /____\ \  |  | |   /     | |    / /____\ \ | | \ \/ / | |
 /  ______  \_|  |_|  |     _| |_  /  ______  \  |  \  /  | |
/_/        \_\_____|__|    |_____|/_/        \_\_|   \/   |_|
v0.1.64 

AirIAM - Least privilege AWS IAM Terraformer

To continuously scan configurations, try the Bridgecrew free community plan.
https://www.bridgecrew.io

INFO:botocore.credentials:Found credentials in environment variables.
Reusing local data
Traceback (most recent call last):
  File "/usr/local/bin/airiam", line 5, in <module>
    run()
  File "/usr/local/lib/python3.6/dist-packages/airiam/main.py", line 29, in run
    runtime_results = find_unused(logger, args.profile, args.no_cache, args.last_used_threshold, args.command)
  File "/usr/local/lib/python3.6/dist-packages/airiam/find_unused/find_unused.py", line 55, in find_unused
    unused_users, used_users = find_unused_users(account_users, credential_report, unused_threshold)
  File "/usr/local/lib/python3.6/dist-packages/airiam/find_unused/find_unused.py", line 83, in find_unused_users
    days_from_today(credentials.get('access_key_1_last_used_date', 'N/A')),
  File "/usr/local/lib/python3.6/dist-packages/airiam/find_unused/find_unused.py", line 249, in days_from_today
    date = dt.datetime.fromisoformat(str_date_from_today)
AttributeError: type object 'datetime.datetime' has no attribute 'fromisoformat'

💻 Operating system

Linux

🧱 Your Environment

No response

Python Version

root@xx:~# python --version
Python 2.7.17
root@xx:~# python3 --version
Python 3.6.9
root@ip-xx:~#```

### checkov-version

not installed

### Share output with the environment variable LOG_LEVEL set to DEBUG

Reusing local data
Traceback (most recent call last):
File "/usr/local/bin/airiam", line 5, in
run()
File "/usr/local/lib/python3.6/dist-packages/airiam/main.py", line 29, in run
runtime_results = find_unused(logger, args.profile, args.no_cache, args.last_used_threshold, args.command)
File "/usr/local/lib/python3.6/dist-packages/airiam/find_unused/find_unused.py", line 55, in find_unused
unused_users, used_users = find_unused_users(account_users, credential_report, unused_threshold)
File "/usr/local/lib/python3.6/dist-packages/airiam/find_unused/find_unused.py", line 83, in find_unused_users
days_from_today(credentials.get('access_key_1_last_used_date', 'N/A')),
File "/usr/local/lib/python3.6/dist-packages/airiam/find_unused/find_unused.py", line 249, in days_from_today
date = dt.datetime.fromisoformat(str_date_from_today)
AttributeError: type object 'datetime.datetime' has no attribute 'fromisoformat'

### 👀 Have you spent some time to check if this issue has been raised before?

- [X] I checked and didn't find similar issue