Python TypeError: an integer is required (got type str) - knnMatch Error Solution

The error message suggests that the variable "db_descriptors_str" is of type "str", but it should be an integer. The "knnMatch" method expects the second argument to be an integer specifying the number of nearest neighbors to return. \n\nTo fix the issue, you need to make sure that "db_descriptors_str" is an integer. You can convert it to an integer by using the "int()" function. Here's an example: \n\npython\nmatches = matcher.knnMatch(query_descriptors, int(db_descriptors_str), 2)\n\n\nMake sure that "db_descriptors_str" contains a valid integer value before converting it.