prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  deprecate 'conda help' in favor of --help CLI flag
  With the install on Windows 10:
  
    _platform : win-64   conda version : 4.3.30
    conda is private : False   conda-env version : 4.3.30
    conda-build version : 3.0.22   python version : 3.6.3.final.0
    requests version : 2.18.4     root environment : C:\Anaconda3  (writable)_
  
  the command:  `conda help install`  (or other similar, say, conda help create, etc.) produces the message
  
  `C:\Anaconda3\python.exe: can't open file 'C:\Anaconda3\Scripts\conda': [Errno 2] No such file or directory`
  
  This syntax works under Linux (Ubuntu), but of course, there is no just "conda" file in Windows Anaconda Scripts.
  
  </issue>
  <code>
  [start of conda/cli/main_help.py]
  1 # (c) 2012-2013 Continuum Analytics, Inc. / http://continuum.io
  2 # All Rights Reserved
  3 #
  4 # conda is distributed under the terms of the BSD 3-clause license.
  5 # Consult LICENSE.txt or http://opensource.org/licenses/BSD-3-Clause.
  6 from __future__ import absolute_import, division, print_function, unicode_literals
  7 
  8 import subprocess
  9 import sys
  10 
  11 
  12 def execute(args, parser):
  13     if not args.command:
  14         parser.print_help()
  15         return
  16     subprocess.call([sys.executable, sys.argv[0], args.command, '-h'])  # pragma: no cover
  17
  [end of conda/cli/main_help.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/conda/cli/main_help.py b/conda/cli/main_help.py
  --- a/conda/cli/main_help.py
  +++ b/conda/cli/main_help.py
  @@ -5,7 +5,6 @@
   # Consult LICENSE.txt or http://opensource.org/licenses/BSD-3-Clause.
   from __future__ import absolute_import, division, print_function, unicode_literals
   
  -import subprocess
   import sys
   
   
  @@ -13,4 +12,7 @@
       if not args.command:
           parser.print_help()
           return
  -    subprocess.call([sys.executable, sys.argv[0], args.command, '-h'])  # pragma: no cover
  +    print("ERROR: The 'conda help' command is deprecated.\n"
  +          "Instead use 'conda %s --help'." % args.command,
  +          file=sys.stderr)
  +    return 1
  
verification_info: {"golden_diff": "diff --git a/conda/cli/main_help.py b/conda/cli/main_help.py\n--- a/conda/cli/main_help.py\n+++ b/conda/cli/main_help.py\n@@ -5,7 +5,6 @@\n # Consult LICENSE.txt or http://opensource.org/licenses/BSD-3-Clause.\n from __future__ import absolute_import, division, print_function, unicode_literals\n \n-import subprocess\n import sys\n \n \n@@ -13,4 +12,7 @@\n     if not args.command:\n         parser.print_help()\n         return\n-    subprocess.call([sys.executable, sys.argv[0], args.command, '-h'])  # pragma: no cover\n+    print(\"ERROR: The 'conda help' command is deprecated.\\n\"\n+          \"Instead use 'conda %s --help'.\" % args.command,\n+          file=sys.stderr)\n+    return 1\n", "issue": "deprecate 'conda help' in favor of --help CLI flag\nWith the install on Windows 10:\r\n\r\n  _platform : win-64   conda version : 4.3.30\r\n  conda is private : False   conda-env version : 4.3.30\r\n  conda-build version : 3.0.22   python version : 3.6.3.final.0\r\n  requests version : 2.18.4     root environment : C:\\Anaconda3  (writable)_\r\n\r\nthe command:  `conda help install`  (or other similar, say, conda help create, etc.) produces the message\r\n\r\n`C:\\Anaconda3\\python.exe: can't open file 'C:\\Anaconda3\\Scripts\\conda': [Errno 2] No such file or directory`\r\n\r\nThis syntax works under Linux (Ubuntu), but of course, there is no just \"conda\" file in Windows Anaconda Scripts.\n", "before_files": [{"content": "# (c) 2012-2013 Continuum Analytics, Inc. / http://continuum.io\n# All Rights Reserved\n#\n# conda is distributed under the terms of the BSD 3-clause license.\n# Consult LICENSE.txt or http://opensource.org/licenses/BSD-3-Clause.\nfrom __future__ import absolute_import, division, print_function, unicode_literals\n\nimport subprocess\nimport sys\n\n\ndef execute(args, parser):\n    if not args.command:\n        parser.print_help()\n        return\n    subprocess.call([sys.executable, sys.argv[0], args.command, '-h'])  # pragma: no cover\n", "path": "conda/cli/main_help.py"}]}