bump pre-commit hooks

Author: basnijholt

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v3.4.0
+  rev: v4.0.1
   hooks:
   - id: trailing-whitespace
   - id: end-of-file-fixer
@@ -9,19 +9,19 @@ repos:
   - id: debug-statements
   - id: check-ast
 - repo: https://github.com/ambv/black
-  rev: 20.8b1
+  rev: 21.9b0
   hooks:
   - id: black
 - repo: https://github.com/asottile/pyupgrade
-  rev: v2.11.0
+  rev: v2.27.0
   hooks:
   - id: pyupgrade
     args: ['--py37-plus']
 - repo: https://github.com/timothycrosley/isort
-  rev: 5.8.0
+  rev: 5.9.3
   hooks:
   - id: isort
 - repo: https://gitlab.com/pycqa/flake8
-  rev: 3.9.0
+  rev: 3.9.2
   hooks:
   - id: flake8

adaptive/learner/integrator_coeffs.py

@@ -162,7 +162,7 @@ def _coefficients():
     ]
 
     # Compute the shift matrices.
-    T_left, T_right = [V_inv[3] @ calc_V((xi[3] + a) / 2, ns[3]) for a in [-1, 1]]
+    T_left, T_right = (V_inv[3] @ calc_V((xi[3] + a) / 2, ns[3]) for a in [-1, 1])
 
     # If the relative difference between two consecutive approximations is
     # lower than this value, the error estimate is considered reliable.

adaptive/learner/learner1D.py

@@ -557,10 +557,10 @@ def tell_many(
         self._oldscale = deepcopy(self._scale)
 
         # Find the intervals for which the losses should be calculated.
-        intervals, intervals_combined = [
+        intervals, intervals_combined = (
             [(x_m, x_r) for x_m, (x_l, x_r) in neighbors.items()][:-1]
             for neighbors in (self.neighbors, self.neighbors_combined)
-        ]
+        )
 
         # The the losses for the "real" intervals.
         self.losses = loss_manager(self._scale[0])

adaptive/notebook_integration.py

@@ -251,7 +251,7 @@ def _info_html(runner):
 
     overhead = runner.overhead()
     red_level = max(0, min(int(255 * overhead / 100), 255))
-    overhead_color = "#{:02x}{:02x}{:02x}".format(red_level, 255 - red_level, 0)
+    overhead_color = f"#{red_level:02x}{255 - red_level:02x}{0:02x}"
 
     info = [
         ("status", f'<font color="{color}">{status}</font>'),

adaptive/tests/test_cquad.py

@@ -36,7 +36,7 @@ def equal_ival(ival, other, *, verbose=False):
         b = getattr(other, s)
         is_equal = np.allclose(a, b, rtol=0, atol=eps, equal_nan=True)
         if verbose and not is_equal:
-            print("ival.{} - other.{} = {}".format(s, s, a - b))
+            print(f"ival.{s} - other.{s} = {a - b}")
         same_slots.append(is_equal)
 
     return all(same_slots)
@@ -46,7 +46,7 @@ def equal_ivals(ivals, other, *, verbose=False):
     """Note: `other` is a list of ivals."""
     if len(ivals) != len(other):
         if verbose:
-            print("len(ivals)={} != len(other)={}".format(len(ivals), len(other)))
+            print(f"len(ivals)={len(ivals)} != len(other)={len(other)}")
         return False
 
     ivals = [sorted(i, key=attrgetter("a")) for i in [ivals, other]]