Implementation question: Supporting multiple threats.json files about pytm HOT 1 OPEN

Make tm.threatsFile a list of files, which will be merged via dict.update, something like

 with open(self.threatsFile[0], "r", encoding="utf8") as threat_file:
            threats_json = json.load(threat_file)
  for file in self.threatsFile[1:]:
       with open(file, "r", encoding="utf8") as threat_file:
            t = json.load(threat_file)
            threats_json.update(t)

Use the default threat file if tm.threatsFile is not set, by setting it to [pytm.pytm.default_threats]

If you want to define your own threats you can reuse pytm.pytm.default_threats by writing

tm.threatsFile = [pytm.pytm.default_threats, "path/to/my/threat_lib.json"]

Or not use the default and write

tm.threatsFile = ["path/to/my/threat_lib.json", "path/to/my/threat_lib_for_java.json"]

By using pytm.pytm.default_threats you don't have to use some magic and it is quite obvious what would happen.

For backwards compatibility it should be possible to also define the threats via the old way

 tm.threatsFile = "path/to/my/threat_lib.json"

from pytm.