fix black

Author: GiacomoPope

src/kyber_py/polynomials/polynomials.py

@@ -1,5 +1,6 @@
 from .polynomials_generic import PolynomialRing, Polynomial
 
+
 class PolynomialRingKyber(PolynomialRing):
     """
     Initialise the polynomial ring:
@@ -63,12 +64,12 @@ def cbd(self, input_bytes, eta, is_ntt=False):
         coefficients = [0 for _ in range(256)]
         b_int = int.from_bytes(input_bytes, "little")
         mask = (1 << eta) - 1
-        mask2 = (1 << 2*eta) - 1
+        mask2 = (1 << 2 * eta) - 1
         for i in range(256):
             x = b_int & mask2
             a = (x & mask).bit_count()
             b = ((x >> eta) & mask).bit_count()
-            b_int >>= 2*eta
+            b_int >>= 2 * eta
             coefficients[i] = (a - b) % 3329
         return self(coefficients, is_ntt=is_ntt)
 
@@ -129,7 +130,7 @@ def encode(self, d):
             t <<= d
         t |= self.coeffs[0]
         return t.to_bytes(32 * d, "little")
-    
+
     def _compress_ele(self, x, d):
         """
         Compute round((2^d / q) * x) % 2^d