Log Message:
py-pdf: update to 3.17.1.

Bug Fixes (BUG)

    Mediabox expansion size when applying non-right angle rotation (#2282) by \ 
@MrinalJain17

Robustness (ROB)

    MissingWidth is IndirectObject (#2288) by @MartinThoma
    Initialize states array with an empty value (#2280) by @alexey-v-paramonov

Documentation (DOC)

    Typo in example in extract-attachments.md (#2285) by @ageitgey
    Add Alexey Paramonov as a contributor for #2280 by @MartinThoma

Maintenance (MAINT)

    Update sample-files by @MartinThoma