p3270A python library to take control of remote IBM hosts
cobrixA COBOL parser and Mainframe/EBCDIC data source for Apache Spark
oecIBM 3270 terminal controller - a replacement for the IBM 3174
coaxTools for connecting to real IBM 3270 type terminals
hyperionThe SoftDevLabs (SDL) version of the Hercules 4.x Hyperion System/370, ESA/390, and z/Architecture Emulator