Update generic.py to repair the SyntaxWarning

[TDYQ-Liu]

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Description

Please include a summary of the change and which issue is fixed (if available). Please also include relevant motivation and context.

Fixes #(issue)

when start bottles from CLI I get /usr/share/bottles/bottles/backend/utils/generic.py:95: SyntaxWarning: invalid escape sequence '\d'

reference the python doc

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.

• [ ] Test A
• [ ] Test B

[fab-sonarqube[bot]]

SonarQube Quality Gate

0 Bugs
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No Coverage information
0.0% Duplication

[fab-sonarqube[bot]]

SonarQube Quality Gate

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[github-actions[bot]]

Pylint result on modfied files:

************* Module bottles.backend.utils.generic
bottles/backend/utils/generic.py:88:4: W0702: No exception type(s) specified (bare-except)
bottles/backend/utils/generic.py:80:8: C0415: Import outside toplevel (ctypes) (import-outside-toplevel)