Python oneline safe pdf merging showcasing using a way of lambda handling exceptions

safepdfmerge.py

# git clone --branch v0.4 --depth 1 --single-branch https://github.com/pmaupin/pdfrw
# PYTHONPATH="$PWD/pdfrw:$PYTHONPATH" python3 safepdfmerge.py /path/to/target/dir /path/to/my/file1.pdf /path/to/my/file2.pdf /paths/to/other/files.pdf

import sys, os, pdfrw; safe_read_pdf_pages = lambda path: exec(f"try: res = pdfrw.PdfReader({path!r}).pages;\nexcept: print({path!r}, sys.exc_info()); res = []", globals(), globals()) or res; writer = pdfrw.PdfWriter(); [writer.addpages(safe_read_pdf_pages(inpfn)) for inpfn in sys.argv[2:]]; os.makedirs(sys.argv[1], exist_ok = True); writer.write(os.path.join(sys.argv[1], os.path.basename(sys.argv[2])))