Fixing Issue intel#3377

cve_bin_tool/package_list_parser.py

@@ -36,6 +36,14 @@ def __init__(
         logger: Logger = LOGGER.getChild("PackageListParser"),
         error_mode=ErrorMode.TruncTrace,
     ) -> None:
+        """
+        Initialize the PackageListParser object.
+
+        Args:
+            input_file (str): The path to the input file containing a list of packages.
+            logger (Logger): An optional logger object for logging messages.
+            error_mode (ErrorMode): An optional error mode specifying how errors should be handled.
+        """
         self.input_file = input_file
 
         if self.__class__.__name__ != "PackageListParser":
@@ -50,6 +58,12 @@ def __init__(
         self.package_names_without_vendor: List[Any] = []
 
     def parse_list(self):
+        """
+        Parse the package list and return parsed package information.
+
+        Returns:
+            Dict[Any, Any]: A dictionary containing parsed package information.
+        """
         input_file = self.input_file
         self.check_file()
         installed_packages = []
@@ -143,6 +157,12 @@ def parse_list(self):
         return self.parsed_data_with_vendor
 
     def add_vendor(self, vendor_package_pairs):
+        """
+        Add vendor information to package entries based on data retrieved from the CVE database.
+
+        Args:
+            vendor_package_pairs: A list of vendor-product pairs obtained from the CVE database.
+        """
         for vendor_package_pair in vendor_package_pairs:
             for package_name in self.package_names_without_vendor:
                 if vendor_package_pair["product"] == package_name["name"].replace(
@@ -154,6 +174,9 @@ def add_vendor(self, vendor_package_pairs):
                     break
 
     def parse_data(self):
+        """
+        Parse package data and construct a dictionary with information about each installed package.
+        """
         for row in self.package_names_with_vendor:
             product_info = ProductInfo(
                 row["vendor"], row["name"].lower(), row["version"]
@@ -168,6 +191,9 @@ def parse_data(self):
             self.parsed_data_with_vendor[product_info]["paths"] = {""}
 
     def check_file(self):
+        """
+        Perform various checks on the input file to ensure its validity and compatibility with the system's package manager.
+        """
         input_file = self.input_file
         error_mode = self.error_mode