Update cloud-web-ipallocator.py

[Shantanuhatagale13]

Shebang updated for portability. Exception handling now prints error details. Used pop(0) for removing the first element from availIP. Added constants for better code management. Used f-strings for modern string formatting. File writing in with block for safety. Improved comments to enhance readability.

Description

This PR...

Types of changes

• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] Enhancement (improves an existing feature and functionality)
• [ ] Cleanup (Code refactoring and cleanup, that may add test cases)
• [ ] build/CI
• [ ] test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• [ ] Major
• [ ] Minor

Bug Severity

• [ ] BLOCKER
• [ ] Critical
• [ ] Major
• [ ] Minor
• [ ] Trivial

Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?

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[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 17.46%. Comparing base (f417c6b) to head (9057860).

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #9796   +/-   ##
=========================================
  Coverage     17.46%   17.46%           
+ Complexity    15516    15514    -2     
=========================================
  Files          5913     5913           
  Lines        529385   529385           
  Branches      64679    64679           
=========================================
  Hits          92448    92448           
  Misses       426518   426518           
  Partials      10419    10419           

Flag	Coverage Δ
uitests	3.58% <ø> (ø)
unittests	18.52% <ø> (ø)

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