Arcpy create feature class from selectionFileIsExist. Checks the existence of a file. Checked file can turn out to be a subdirectory. In this case, FileIsExist() function will return false, while error 5019 will be logged in _LastError variable - "This is a directory, not a file" (see example for FileFindFirst() function).Polaris sno traveler for saleSep 11, 2018 · All my files is readonly. I have two TVS-1271u with 12 HDD (8TB/HDD). One for production and the second one for backup. Last week, a disk he had a problem with smart and all files have entered in readonly. I removed that disk and the raid regeneration was successfully finish. After that, all files is still in readonly.