STY: Apply ruff rule N806 for some file (#2149)

py-pdf · Sep 10, 2023 · f659956 · f659956
1 parent e090717
commit f659956
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Showing 3 changed files with 126 additions and 155 deletions.
diff --git a/pypdf/_crypt_providers/_fallback.py b/pypdf/_crypt_providers/_fallback.py
@@ -36,21 +36,21 @@
 
 class CryptRC4(CryptBase): # type: ignore
  def __init__(self, key: bytes) -> None:
- self.S = bytearray(range(256))
+ self.s = bytearray(range(256))
  j = 0
  for i in range(256):
- j = (j + self.S[i] + key[i % len(key)]) % 256
- self.S[i], self.S[j] = self.S[j], self.S[i]
+ j = (j + self.s[i] + key[i % len(key)]) % 256
+ self.s[i], self.s[j] = self.s[j], self.s[i]
 
  def encrypt(self, data: bytes) -> bytes:
- S = bytearray(self.S)
+ s = bytearray(self.s)
  out = [0 for _ in range(len(data))]
  i, j = 0, 0
  for k in range(len(data)):
  i = (i + 1) % 256
- j = (j + S[i]) % 256
- S[i], S[j] = S[j], S[i]
- x = S[(S[i] + S[j]) % 256]
+ j = (j + s[i]) % 256
+ s[i], s[j] = s[j], s[i]
+ x = s[(s[i] + s[j]) % 256]
  out[k] = data[k] ^ x
  return bytes(bytearray(out))