parsexml: Use sys.stderr instead of print(file=sys.stderr)
parsexml: Use sys.stderr instead of print(file=sys.stderr)

It seems like the linters detect the latter as a syntax error(?)

smspillaz/pubmed-retraction-analysis,smspillaz/pubmed-retraction-analysis,smspillaz/pubmed-retraction-analysis,smspillaz/pubmed-retraction-analysis