Add typing

plugins/CuraProfileReader/CuraProfileReader.py

@@ -1,6 +1,8 @@
-# Copyright (c) 2018 Ultimaker B.V.
+# Copyright (c) 2019 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
+
 import configparser
+from typing import List, Optional, Tuple
 
 from UM.PluginRegistry import PluginRegistry
 from UM.Logger import Logger
@@ -17,19 +19,19 @@ import zipfile
 class CuraProfileReader(ProfileReader):
     ##  Initialises the cura profile reader.
     #   This does nothing since the only other function is basically stateless.
-    def __init__(self):
+    def __init__(self) -> None:
         super().__init__()
 
     ##  Reads a cura profile from a file and returns it.
     #
     #   \param file_name The file to read the cura profile from.
-    #   \return The cura profile that was in the file, if any. If the file could
-    #   not be read or didn't contain a valid profile, \code None \endcode is
+    #   \return The cura profiles that were in the file, if any. If the file
+    #   could not be read or didn't contain a valid profile, ``None`` is
     #   returned.
-    def read(self, file_name):
+    def read(self, file_name: str) -> List[Optional[InstanceContainer]]:
         try:
             with zipfile.ZipFile(file_name, "r") as archive:
-                results = []
+                results = [] #type: List[Optional[InstanceContainer]]
                 for profile_id in archive.namelist():
                     with archive.open(profile_id) as f:
                         serialized = f.read()
@@ -41,15 +43,16 @@ class CuraProfileReader(ProfileReader):
         except zipfile.BadZipFile:
             # It must be an older profile from Cura 2.1.
             with open(file_name, encoding = "utf-8") as fhandle:
-                serialized = fhandle.read()
-            return [self._loadProfile(serialized, profile_id) for serialized, profile_id in self._upgradeProfile(serialized, file_name)]
+                serialized_bytes = fhandle.read()
+            return [self._loadProfile(serialized, profile_id) for serialized, profile_id in self._upgradeProfile(serialized_bytes, file_name)]
 
     ##  Convert a profile from an old Cura to this Cura if needed.
     #
-    #   \param serialized \type{str} The profile data to convert in the serialized on-disk format.
-    #   \param profile_id \type{str} The name of the profile.
-    #   \return \type{List[Tuple[str,str]]} List of serialized profile strings and matching profile names.
-    def _upgradeProfile(self, serialized, profile_id):
+    #   \param serialized The profile data to convert in the serialized on-disk
+    #   format.
+    #   \param profile_id The name of the profile.
+    #   \return List of serialized profile strings and matching profile names.
+    def _upgradeProfile(self, serialized: str, profile_id: str) -> List[Tuple[str, str]]:
         parser = configparser.ConfigParser(interpolation = None)
         parser.read_string(serialized)
 
@@ -69,10 +72,10 @@ class CuraProfileReader(ProfileReader):
 
     ##  Load a profile from a serialized string.
     #
-    #   \param serialized \type{str} The profile data to read.
-    #   \param profile_id \type{str} The name of the profile.
-    #   \return \type{InstanceContainer|None}
-    def _loadProfile(self, serialized, profile_id):
+    #   \param serialized The profile data to read.
+    #   \param profile_id The name of the profile.
+    #   \return The profile that was stored in the string.
+    def _loadProfile(self, serialized: str, profile_id: str) -> Optional[InstanceContainer]:
         # Create an empty profile.
         profile = InstanceContainer(profile_id)
         profile.setMetaDataEntry("type", "quality_changes")
@@ -88,12 +91,12 @@ class CuraProfileReader(ProfileReader):
 
     ##  Upgrade a serialized profile to the current profile format.
     #
-    #   \param serialized \type{str} The profile data to convert.
-    #   \param profile_id \type{str} The name of the profile.
-    #   \param source_version \type{int} The profile version of 'serialized'.
-    #   \return \type{List[Tuple[str,str]]} List of serialized profile strings and matching profile names.
-    def _upgradeProfileVersion(self, serialized, profile_id, source_version):
-        converter_plugins = PluginRegistry.getInstance().getAllMetaData(filter={"version_upgrade": {} }, active_only=True)
+    #   \param serialized The profile data to convert.
+    #   \param profile_id The name of the profile.
+    #   \param source_version The profile version of 'serialized'.
+    #   \return List of serialized profile strings and matching profile names.
+    def _upgradeProfileVersion(self, serialized: str, profile_id: str, source_version: int) -> List[Tuple[str, str]]:
+        converter_plugins = PluginRegistry.getInstance().getAllMetaData(filter = {"version_upgrade": {} }, active_only = True)
 
         source_format = ("profile", source_version)
         profile_convert_funcs = [plugin["version_upgrade"][source_format][2] for plugin in converter_plugins