Hi, I'm just creating this thread to get the problem and the solution indexed by Google
I downloaded several SDF datasets from BindingDB and got errors like this one when using Chem.SDMolSupplier: ERROR: Cannot convert 1. to unsigned int After some digging I found [ https://sourceforge.net/p/rdkit/mailman/rdkit-discuss/thread/CAB3Bi0AYKAYOzMUumk6BscipsujkmG_-uuho3%3Dsf9mNyfoBAwA%40mail.gmail.com/#msg32641808], and it turns out the headers (before every mol) should have three lines. The BindingDB files only had two. In these files, each mol+properties block was separated by four dollar sign symbols. My solution was to add a blank line after each $$$$ by using Notepad++ Find and replace: $$$$ by $$$$ + (new line). -- *Rafael da Fonseca Lameiro* PhD Student - Medicinal and Biological Chemistry Group (NEQUIMED) São Carlos Institute of Chemistry - University of São Paulo - Brazil [image: orcid logo 16px] https://orcid.org/0000-0003-4466-2682
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