1. Description pyLASDev is a small Python package which provides reading and writing of LAS (Log ASCII Standart) 1.2 and 2.0 files. Also it can be used for reading Dev (deviation) files, which are common in geoscience to store deviations and paths (for example, for wells in oil industry). pyLASDev is written according to LAS 1.2 and 2.0 specifications. 2. Requierements - PLY (Python Lex-Yacc) package (used for parsing). - NumPy package (numpy arrays used to store log data). - SetupTools package (optional, for egg file easy installation). pyLASDev is distributed under BSD license.