Get mypy working again

axelrod/deterministic_cache.py

@@ -14,7 +14,7 @@
 
 import pickle
 from collections import UserDict
-from typing import List, Tuple
+from typing import List, Optional, Tuple
 
 from axelrod import Classifiers
 
@@ -104,7 +104,7 @@ class DeterministicCache(UserDict):
     methods to save/load the cache to/from a file.
     """
 
-    def __init__(self, file_name: str = None) -> None:
+    def __init__(self, file_name: Optional[str] = None) -> None:
         """Initialize a new cache.
 
         Parameters

axelrod/ecosystem.py

@@ -12,7 +12,7 @@
 """
 
 import random
-from typing import Callable, List
+from typing import Callable, List, Optional
 
 from axelrod.result_set import ResultSet
 
@@ -29,8 +29,8 @@ class Ecosystem(object):
     def __init__(
         self,
         results: ResultSet,
-        fitness: Callable[[float], float] = None,
-        population: List[int] = None,
+        fitness: Optional[Callable[[float], float]] = None,
+        population: Optional[List[int]] = None,
     ) -> None:
         """Create a new ecosystem.
 

axelrod/fingerprint.py

@@ -1,7 +1,7 @@
 import os
 from collections import namedtuple
 from tempfile import mkstemp
-from typing import Any, List, Union
+from typing import Any, List, Optional, Union
 
 import dask.dataframe as dd
 import matplotlib.pyplot as plt
@@ -280,10 +280,10 @@ def fingerprint(
         turns: int = 50,
         repetitions: int = 10,
         step: float = 0.01,
-        processes: int = None,
-        filename: str = None,
+        processes: Optional[int] = None,
+        filename: Optional[str] = None,
         progress_bar: bool = True,
-        seed: int = None,
+        seed: Optional[int] = None,
     ) -> dict:
         """Build and play the spatial tournament.
 
@@ -358,7 +358,7 @@ def plot(
         self,
         cmap: str = "seismic",
         interpolation: str = "none",
-        title: str = None,
+        title: Optional[str] = None,
         colorbar: bool = True,
         labels: bool = True,
     ) -> plt.Figure:
@@ -437,11 +437,11 @@ def fingerprint(
         self,
         turns: int = 50,
         repetitions: int = 1000,
-        noise: float = None,
-        processes: int = None,
-        filename: str = None,
+        noise: Optional[float] = None,
+        processes: Optional[int] = None,
+        filename: Optional[str] = None,
         progress_bar: bool = True,
-        seed: int = None,
+        seed: Optional[int] = None,
     ) -> np.ndarray:
         """Creates a spatial tournament to run the necessary matches to obtain
         fingerprint data.
@@ -556,7 +556,7 @@ def plot(
         self,
         cmap: str = "viridis",
         interpolation: str = "none",
-        title: str = None,
+        title: Optional[str] = None,
         colorbar: bool = True,
         labels: bool = True,
         display_names: bool = False,

axelrod/game.py

@@ -2,6 +2,7 @@
 from typing import Tuple, Union
 
 import numpy as np
+import numpy.typing as npt
 
 from axelrod import Action
 
@@ -20,7 +21,7 @@ class AsymmetricGame(object):
     """
 
     # pylint: disable=invalid-name
-    def __init__(self, A: np.array, B: np.array) -> None:
+    def __init__(self, A: npt.NDArray, B: npt.NDArray) -> None:
         """
         Creates an asymmetric game from two matrices.
 

axelrod/load_data_.py

@@ -1,6 +1,6 @@
 import pathlib
 import pkgutil
-from typing import Dict, List, Text, Tuple
+from typing import Callable, Dict, List, Optional, Tuple
 
 
 def axl_filename(path: pathlib.Path) -> pathlib.Path:
@@ -20,12 +20,18 @@ def axl_filename(path: pathlib.Path) -> pathlib.Path:
     return axl_path / path
 
 
-def load_file(filename: str, directory: str) -> List[List[str]]:
+def load_file(
+    filename: str,
+    directory: str,
+    get_data: Callable[[str, str], Optional[bytes]] = pkgutil.get_data,
+) -> List[List[str]]:
     """Loads a data file stored in the Axelrod library's data subdirectory,
     likely for parameters for a strategy."""
 
     path = str(pathlib.Path(directory) / filename)
-    data_bytes = pkgutil.get_data(__name__, path)
+    data_bytes = get_data(__name__, path)
+    if data_bytes is None:
+        raise FileNotFoundError(f"Some loader issue for path {path}")
     data = data_bytes.decode("UTF-8", "replace")
 
     rows = []

axelrod/mock_player.py

@@ -1,5 +1,5 @@
 from itertools import cycle
-from typing import List
+from typing import List, Optional
 
 from axelrod.action import Action
 from axelrod.player import Player
@@ -14,7 +14,7 @@ class MockPlayer(Player):
 
     name = "Mock Player"
 
-    def __init__(self, actions: List[Action] = None) -> None:
+    def __init__(self, actions: Optional[List[Action]] = None) -> None:
         super().__init__()
         if not actions:
             actions = []

axelrod/moran.py

@@ -18,15 +18,15 @@ def __init__(
         self,
         players: List[Player],
         turns: int = DEFAULT_TURNS,
-        prob_end: float = None,
+        prob_end: Optional[float] = None,
         noise: float = 0,
         game: Game = None,
         deterministic_cache: DeterministicCache = None,
         mutation_rate: float = 0.0,
         mode: str = "bd",
         interaction_graph: Graph = None,
         reproduction_graph: Graph = None,
-        fitness_transformation: Callable = None,
+        fitness_transformation: Optional[Callable] = None,
         mutation_method="transition",
         stop_on_fixation=True,
         seed=None,
@@ -175,7 +175,7 @@ def set_players(self) -> None:
         self.populations = [self.population_distribution()]
 
     def fitness_proportionate_selection(
-        self, scores: List, fitness_transformation: Callable = None
+        self, scores: List, fitness_transformation: Optional[Callable] = None
     ) -> int:
         """Randomly selects an individual proportionally to score.
 
@@ -229,7 +229,7 @@ def mutate(self, index: int) -> Player:
         # Just clone the player
         return self.players[index].clone()
 
-    def death(self, index: int = None) -> int:
+    def death(self, index: Optional[int] = None) -> int:
         """
         Selects the player to be removed.
 
@@ -258,7 +258,7 @@ def death(self, index: int = None) -> int:
             i = self.index[vertex]
         return i
 
-    def birth(self, index: int = None) -> int:
+    def birth(self, index: Optional[int] = None) -> int:
         """The birth event.
 
         Parameters
@@ -349,7 +349,6 @@ def _matchup_indices(self) -> Set[Tuple[int, int]]:
         # The other calculations are unnecessary
         if self.mode == "db":
             source = self.index[self.dead]
-            self.dead = None
             sources = sorted(self.interaction_graph.out_vertices(source))
         else:
             # birth-death is global

axelrod/plot.py

@@ -1,5 +1,5 @@
 import pathlib
-from typing import List, Union
+from typing import Any, Callable, List, Optional, Union
 
 import matplotlib
 import matplotlib.pyplot as plt
@@ -10,7 +10,7 @@
 from .load_data_ import axl_filename
 from .result_set import ResultSet
 
-titleType = List[str]
+titleType = str
 namesType = List[str]
 dataType = List[List[Union[int, float]]]
 
@@ -25,8 +25,11 @@ def _violinplot(
         self,
         data: dataType,
         names: namesType,
-        title: titleType = None,
-        ax: matplotlib.axes.SubplotBase = None,
+        title: Optional[titleType] = None,
+        ax: Optional[matplotlib.axes.Axes] = None,
+        get_figure: Callable[
+            [matplotlib.axes.Axes], Union[matplotlib.figure.Figure, Any, None]
+        ] = lambda ax: ax.get_figure(),
     ) -> matplotlib.figure.Figure:
         """For making violinplots."""
 
@@ -35,7 +38,11 @@ def _violinplot(
         else:
             ax = ax
 
-        figure = ax.get_figure()
+        figure = get_figure(ax)
+        if not isinstance(figure, matplotlib.figure.Figure):
+            raise RuntimeError(
+                "get_figure unexpectedly returned a non-figure object"
+            )
         width = max(self.num_players / 3, 12)
         height = width / 2
         spacing = 4
@@ -50,7 +57,7 @@ def _violinplot(
         )
         ax.set_xticks(positions)
         ax.set_xticklabels(names, rotation=90)
-        ax.set_xlim([0, spacing * (self.num_players + 1)])
+        ax.set_xlim((0, spacing * (self.num_players + 1)))
         ax.tick_params(axis="both", which="both", labelsize=8)
         if title:
             ax.set_title(title)
@@ -76,7 +83,9 @@ def _boxplot_xticks_labels(self):
         return [str(n) for n in self.result_set.ranked_names]
 
     def boxplot(
-        self, title: titleType = None, ax: matplotlib.axes.SubplotBase = None
+        self,
+        title: Optional[titleType] = None,
+        ax: Optional[matplotlib.axes.Axes] = None,
     ) -> matplotlib.figure.Figure:
         """For the specific mean score boxplot."""
         data = self._boxplot_dataset
@@ -98,7 +107,9 @@ def _winplot_dataset(self):
         return wins, ranked_names
 
     def winplot(
-        self, title: titleType = None, ax: matplotlib.axes.SubplotBase = None
+        self,
+        title: Optional[titleType] = None,
+        ax: Optional[matplotlib.axes.Axes] = None,
     ) -> matplotlib.figure.Figure:
         """Plots the distributions for the number of wins for each strategy."""
 
@@ -126,7 +137,9 @@ def _sdv_plot_dataset(self):
         return diffs, ranked_names
 
     def sdvplot(
-        self, title: titleType = None, ax: matplotlib.axes.SubplotBase = None
+        self,
+        title: Optional[titleType] = None,
+        ax: Optional[matplotlib.axes.Axes] = None,
     ) -> matplotlib.figure.Figure:
         """Score difference violin plots to visualize the distributions of how
         players attain their payoffs."""
@@ -143,7 +156,9 @@ def _lengthplot_dataset(self):
         ]
 
     def lengthplot(
-        self, title: titleType = None, ax: matplotlib.axes.SubplotBase = None
+        self,
+        title: Optional[titleType] = None,
+        ax: Optional[matplotlib.axes.Axes] = None,
     ) -> matplotlib.figure.Figure:
         """For the specific match length boxplot."""
         data = self._lengthplot_dataset
@@ -174,9 +189,12 @@ def _payoff_heatmap(
         self,
         data: dataType,
         names: namesType,
-        title: titleType = None,
-        ax: matplotlib.axes.SubplotBase = None,
+        title: Optional[titleType] = None,
+        ax: Optional[matplotlib.axes.Axes] = None,
         cmap: str = "viridis",
+        get_figure: Callable[
+            [matplotlib.axes.Axes], Union[matplotlib.figure.Figure, Any, None]
+        ] = lambda ax: ax.get_figure(),
     ) -> matplotlib.figure.Figure:
         """Generic heatmap plot"""
 
@@ -185,7 +203,11 @@ def _payoff_heatmap(
         else:
             ax = ax
 
-        figure = ax.get_figure()
+        figure = get_figure(ax)
+        if not isinstance(figure, matplotlib.figure.Figure):
+            raise RuntimeError(
+                "get_figure unexpectedly returned a non-figure object"
+            )
         width = max(self.num_players / 4, 12)
         height = width
         figure.set_size_inches(width, height)
@@ -202,15 +224,19 @@ def _payoff_heatmap(
         return figure
 
     def pdplot(
-        self, title: titleType = None, ax: matplotlib.axes.SubplotBase = None
+        self,
+        title: Optional[titleType] = None,
+        ax: Optional[matplotlib.axes.Axes] = None,
     ) -> matplotlib.figure.Figure:
         """Payoff difference heatmap to visualize the distributions of how
         players attain their payoffs."""
         matrix, names = self._pdplot_dataset
         return self._payoff_heatmap(matrix, names, title=title, ax=ax)
 
     def payoff(
-        self, title: titleType = None, ax: matplotlib.axes.SubplotBase = None
+        self,
+        title: Optional[titleType] = None,
+        ax: Optional[matplotlib.axes.Axes] = None,
     ) -> matplotlib.figure.Figure:
         """Payoff heatmap to visualize the distributions of how
         players attain their payoffs."""
@@ -223,9 +249,12 @@ def payoff(
     def stackplot(
         self,
         eco,
-        title: titleType = None,
+        title: Optional[titleType] = None,
         logscale: bool = True,
-        ax: matplotlib.axes.SubplotBase = None,
+        ax: Optional[matplotlib.axes.Axes] = None,
+        get_figure: Callable[
+            [matplotlib.axes.Axes], Union[matplotlib.figure.Figure, Any, None]
+        ] = lambda ax: ax.get_figure(),
     ) -> matplotlib.figure.Figure:
 
         populations = eco.population_sizes
@@ -235,7 +264,11 @@ def stackplot(
         else:
             ax = ax
 
-        figure = ax.get_figure()
+        figure = get_figure(ax)
+        if not isinstance(figure, matplotlib.figure.Figure):
+            raise RuntimeError(
+                "get_figure unexpectedly returned a non-figure object"
+            )
         turns = range(len(populations))
         pops = [
             [populations[iturn][ir] for iturn in turns]
@@ -247,7 +280,7 @@ def stackplot(
         ax.yaxis.set_label_position("right")
         ax.yaxis.labelpad = 25.0
 
-        ax.set_ylim([0.0, 1.0])
+        ax.set_ylim((0.0, 1.0))
         ax.set_ylabel("Relative population size")
         ax.set_xlabel("Turn")
         if title is not None: