prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Sort spider names on 'scrapy list' command
  Hey there, 
  
  i think the spider names on the `scrapy list` command should be order by name in the console output. 
  
  
  </issue>
  <code>
  [start of scrapy/commands/list.py]
  1 from __future__ import print_function
  2 from scrapy.command import ScrapyCommand
  3 
  4 class Command(ScrapyCommand):
  5 
  6     requires_project = True
  7     default_settings = {'LOG_ENABLED': False}
  8 
  9     def short_desc(self):
  10         return "List available spiders"
  11 
  12     def run(self, args, opts):
  13         crawler = self.crawler_process.create_crawler()
  14         for s in crawler.spiders.list():
  15             print(s)
  16
  [end of scrapy/commands/list.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/scrapy/commands/list.py b/scrapy/commands/list.py
  --- a/scrapy/commands/list.py
  +++ b/scrapy/commands/list.py
  @@ -11,5 +11,5 @@
   
       def run(self, args, opts):
           crawler = self.crawler_process.create_crawler()
  -        for s in crawler.spiders.list():
  +        for s in sorted(crawler.spiders.list()):
               print(s)
  
verification_info: {"golden_diff": "diff --git a/scrapy/commands/list.py b/scrapy/commands/list.py\n--- a/scrapy/commands/list.py\n+++ b/scrapy/commands/list.py\n@@ -11,5 +11,5 @@\n \n     def run(self, args, opts):\n         crawler = self.crawler_process.create_crawler()\n-        for s in crawler.spiders.list():\n+        for s in sorted(crawler.spiders.list()):\n             print(s)\n", "issue": "Sort spider names on 'scrapy list' command\nHey there, \n\ni think the spider names on the `scrapy list` command should be order by name in the console output. \n\n", "before_files": [{"content": "from __future__ import print_function\nfrom scrapy.command import ScrapyCommand\n\nclass Command(ScrapyCommand):\n\n    requires_project = True\n    default_settings = {'LOG_ENABLED': False}\n\n    def short_desc(self):\n        return \"List available spiders\"\n\n    def run(self, args, opts):\n        crawler = self.crawler_process.create_crawler()\n        for s in crawler.spiders.list():\n            print(s)\n", "path": "scrapy/commands/list.py"}]}