prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Forbid `handler` as a variable name
  We need to add `handler` to our variable blacklist.
  
  </issue>
  <code>
  [start of wemake_python_styleguide/constants.py]
  1 # -*- coding: utf-8 -*-
  2 
  3 BAD_FUNCTIONS = frozenset((
  4     # Code generation:
  5     'eval',
  6     'exec',
  7     'compile',
  8 
  9     # Magic:
  10     'globals',
  11     'locals',
  12     'vars',
  13     'dir',
  14 
  15     # IO:
  16     'input',
  17     'help',
  18 
  19     # Attribute access:
  20     'hasattr',
  21     'delattr',
  22 ))
  23 
  24 BAD_IMPORT_FUNCTIONS = frozenset((
  25     '__import__',
  26 ))
  27 
  28 BAD_MODULE_METADATA_VARIABLES = frozenset((
  29     '__author__',
  30 ))
  31 
  32 BAD_VARIABLE_NAMES = frozenset((
  33     'data',
  34     'result',
  35     'results',
  36     'item',
  37     'items',
  38     'value',
  39     'values',
  40     'val',
  41     'vals',
  42     'var',
  43     'vars',
  44     'content',
  45     'contents',
  46     'info',
  47 ))
  48 
  49 NESTED_CLASSES_WHITELIST = frozenset((
  50     'Meta',
  51 ))
  52
  [end of wemake_python_styleguide/constants.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/wemake_python_styleguide/constants.py b/wemake_python_styleguide/constants.py
  --- a/wemake_python_styleguide/constants.py
  +++ b/wemake_python_styleguide/constants.py
  @@ -19,6 +19,10 @@
       # Attribute access:
       'hasattr',
       'delattr',
  +
  +    # Too generic:
  +    'handler',
  +    'handle',
   ))
   
   BAD_IMPORT_FUNCTIONS = frozenset((
  @@ -44,6 +48,7 @@
       'content',
       'contents',
       'info',
  +    'handler',
   ))
   
   NESTED_CLASSES_WHITELIST = frozenset((
  
verification_info: {"golden_diff": "diff --git a/wemake_python_styleguide/constants.py b/wemake_python_styleguide/constants.py\n--- a/wemake_python_styleguide/constants.py\n+++ b/wemake_python_styleguide/constants.py\n@@ -19,6 +19,10 @@\n     # Attribute access:\n     'hasattr',\n     'delattr',\n+\n+    # Too generic:\n+    'handler',\n+    'handle',\n ))\n \n BAD_IMPORT_FUNCTIONS = frozenset((\n@@ -44,6 +48,7 @@\n     'content',\n     'contents',\n     'info',\n+    'handler',\n ))\n \n NESTED_CLASSES_WHITELIST = frozenset((\n", "issue": "Forbid `handler` as a variable name\nWe need to add `handler` to our variable blacklist.\n", "before_files": [{"content": "# -*- coding: utf-8 -*-\n\nBAD_FUNCTIONS = frozenset((\n    # Code generation:\n    'eval',\n    'exec',\n    'compile',\n\n    # Magic:\n    'globals',\n    'locals',\n    'vars',\n    'dir',\n\n    # IO:\n    'input',\n    'help',\n\n    # Attribute access:\n    'hasattr',\n    'delattr',\n))\n\nBAD_IMPORT_FUNCTIONS = frozenset((\n    '__import__',\n))\n\nBAD_MODULE_METADATA_VARIABLES = frozenset((\n    '__author__',\n))\n\nBAD_VARIABLE_NAMES = frozenset((\n    'data',\n    'result',\n    'results',\n    'item',\n    'items',\n    'value',\n    'values',\n    'val',\n    'vals',\n    'var',\n    'vars',\n    'content',\n    'contents',\n    'info',\n))\n\nNESTED_CLASSES_WHITELIST = frozenset((\n    'Meta',\n))\n", "path": "wemake_python_styleguide/constants.py"}]}