I am using wx.Grid to build spreadsheetlike input interface. I want to lock the size of the cells so the user can not change them. I have successfully disabled the drag-sizing with grid.EnableDragGridSize(False) of the grid but user can still resize the cells by using borders between column and row labels. I am probably missing something in wxGrid documentation.
I found the solution. To completely lock user ability to resize cells it is needed to use .EnableDragGridSize(False) , .DisableDragColSize() and .DisableDragRowSize()  methods.
wx.Grid cell size lock