Format all code using black

Author: meatballs

axelrod/__init__.py

@@ -9,8 +9,13 @@
 from .plot import Plot
 from .game import DefaultGame, Game
 from .player import (
-    get_state_distribution_from_history, is_basic, obey_axelrod,
-    update_history, update_state_distribution, Player)
+    get_state_distribution_from_history,
+    is_basic,
+    obey_axelrod,
+    update_history,
+    update_state_distribution,
+    Player,
+)
 from .mock_player import MockPlayer
 from .match import Match
 from .moran import MoranProcess, ApproximateMoranProcess
@@ -21,4 +26,3 @@
 from .result_set import ResultSet
 from .ecosystem import Ecosystem
 from .fingerprint import AshlockFingerprint, TransitiveFingerprint
-

axelrod/_strategy_utils.py

@@ -66,7 +66,7 @@ def inspect_strategy(inspector, opponent):
     Action
         The action that would be taken by the opponent.
     """
-    if hasattr(opponent, 'foil_strategy_inspection'):
+    if hasattr(opponent, "foil_strategy_inspection"):
         return opponent.foil_strategy_inspection()
     else:
         return opponent.strategy(inspector)

axelrod/action.py

@@ -12,6 +12,7 @@
 
 class UnknownActionError(ValueError):
     """Error indicating an unknown action was used."""
+
     def __init__(self, *args):
         super(UnknownActionError, self).__init__(*args)
 
@@ -30,10 +31,10 @@ def __bool__(self):
         return bool(self.value)
 
     def __repr__(self):
-        return '{}'.format(self.name)
+        return "{}".format(self.name)
 
     def __str__(self):
-        return '{}'.format(self.name)
+        return "{}".format(self.name)
 
     def flip(self):
         """Returns the opposite Action."""
@@ -61,9 +62,9 @@ def from_char(cls, character):
         UnknownActionError
             If the input string is not 'C' or 'D'
         """
-        if character == 'C':
+        if character == "C":
             return cls.C
-        if character == 'D':
+        if character == "D":
             return cls.D
         raise UnknownActionError('Character must be "C" or "D".')
 

axelrod/deterministic_cache.py

@@ -53,13 +53,13 @@ def _is_valid_key(key: CachePlayerKey) -> bool:
         return False
 
     if not (
-        isinstance(key[0], Player) and
-        isinstance(key[1], Player) and
-        isinstance(key[2], int)
+        isinstance(key[0], Player)
+        and isinstance(key[1], Player)
+        and isinstance(key[2], int)
     ):
         return False
 
-    if key[0].classifier['stochastic'] or key[1].classifier['stochastic']:
+    if key[0].classifier["stochastic"] or key[1].classifier["stochastic"]:
         return False
 
     return True
@@ -106,7 +106,7 @@ 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: str = None) -> None:
         """Initialize a new cache.
 
         Parameters
@@ -131,16 +131,18 @@ def __contains__(self, key):
     def __setitem__(self, key: CachePlayerKey, value):
         """Validate the key and value before setting them."""
         if not self.mutable:
-            raise ValueError('Cannot update cache unless mutable is True.')
+            raise ValueError("Cannot update cache unless mutable is True.")
 
         if not _is_valid_key(key):
             raise ValueError(
                 "Key must be a tuple of 2 deterministic axelrod Player classes "
-                "and an integer")
+                "and an integer"
+            )
 
         if not _is_valid_value(value):
             raise ValueError(
-                'Value must be a list with length equal to turns attribute')
+                "Value must be a list with length equal to turns attribute"
+            )
 
         super().__setitem__(_key_transform(key), value)
 
@@ -152,7 +154,7 @@ def save(self, file_name: str) -> bool:
         file_name : string
             File path to which the cache should be saved
         """
-        with open(file_name, 'wb') as io:
+        with open(file_name, "wb") as io:
             pickle.dump(self.data, io)
         return True
 
@@ -164,13 +166,14 @@ def load(self, file_name: str) -> bool:
         file_name : string
             Path to a previously saved cache file
         """
-        with open(file_name, 'rb') as io:
+        with open(file_name, "rb") as io:
             data = pickle.load(io)
 
         if isinstance(data, dict):
             self.data = data
         else:
             raise ValueError(
                 "Cache file exists but is not the correct format. "
-                "Try deleting and re-building the cache file.")
+                "Try deleting and re-building the cache file."
+            )
         return True

axelrod/ecosystem.py

@@ -27,9 +27,12 @@ class Ecosystem(object):
         The number of players
     """
 
-    def __init__(self, results: ResultSet,
-                 fitness: Callable[[float], float] = None,
-                 population: List[int] = None) -> None:
+    def __init__(
+        self,
+        results: ResultSet,
+        fitness: Callable[[float], float] = None,
+        population: List[int] = None,
+    ) -> None:
         """Create a new ecosystem.
         
         Parameters
@@ -58,16 +61,19 @@ def __init__(self, results: ResultSet,
         if population:
             if min(population) < 0:
                 raise TypeError(
-                    "Minimum value of population vector must be non-negative")
+                    "Minimum value of population vector must be non-negative"
+                )
             elif len(population) != self.num_players:
                 raise TypeError(
-                    "Population vector must be same size as number of players")
+                    "Population vector must be same size as number of players"
+                )
             else:
                 norm = sum(population)
                 self.population_sizes = [[p / norm for p in population]]
         else:
             self.population_sizes = [
-                [1 / self.num_players for _ in range(self.num_players)]]
+                [1 / self.num_players for _ in range(self.num_players)]
+            ]
 
         # This function is quite arbitrary and probably only influences the
         # kinetics for the current code.

axelrod/eigen.py

@@ -11,7 +11,7 @@
 
 def _normalise(nvec: numpy.ndarray) -> numpy.ndarray:
     """Normalises the given numpy array."""
-    with numpy.errstate(invalid='ignore'):
+    with numpy.errstate(invalid="ignore"):
         result = nvec / numpy.sqrt(numpy.dot(nvec, nvec))
     return result
 
@@ -45,8 +45,9 @@ def _power_iteration(mat: numpy.matrix, initial: numpy.ndarray) -> numpy.ndarray
         yield vec
 
 
-def principal_eigenvector(mat: numpy.matrix, maximum_iterations=1000,
-                          max_error=1e-3) -> Tuple[numpy.ndarray, float]:
+def principal_eigenvector(
+    mat: numpy.matrix, maximum_iterations=1000, max_error=1e-3
+) -> Tuple[numpy.ndarray, float]:
     """
     Computes the (normalised) principal eigenvector of the given matrix.
 
@@ -75,7 +76,7 @@ def principal_eigenvector(mat: numpy.matrix, maximum_iterations=1000,
 
     # Power iteration
     if not maximum_iterations:
-        maximum_iterations = float('inf')
+        maximum_iterations = float("inf")
     last = initial
     for i, vector in enumerate(_power_iteration(mat, initial=initial)):
         if i > maximum_iterations:
@@ -84,8 +85,7 @@ def principal_eigenvector(mat: numpy.matrix, maximum_iterations=1000,
             break
         last = vector
     # Compute the eigenvalue (Rayleigh quotient)
-    eigenvalue = numpy.dot(
-        numpy.dot(mat_, vector), vector) / numpy.dot(vector, vector)
+    eigenvalue = numpy.dot(numpy.dot(mat_, vector), vector) / numpy.dot(vector, vector)
     # Liberate the eigenvalue from numpy
     eigenvalue = float(eigenvalue)
     return vector, eigenvalue