Many petrophysical or geophysical applications often involve using the same type of geophysical logs from different locations, stored in different Log ASCII Standard (LAS) files. The LAS format is a structured ASCII file format containing log curve data and header information for records of several sub-surface measurements as functions of depth. Checking for specific logs in a large database of LAS files can be painstaking process taking several days. This process is further complicated by the use of mnemonics (different names) for the same log-type by different companies. PyLogFinder is a Python program for automating the process of analyzing a large database of LAS files and selecting the LAS files that contain specific geophysical log...