prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  [bug] pip package 0.1.3 fails to install
  Both `python3.8 -m pip install fairscale --verbose` and `python3.8 -m pip install fairscale --no-build-isolation --verbose` trigger
  
  ```
  ninja: error: '/tmp/pip-install-zqe21k7a/fairscale_4066f1fa225242299ead5fd852fd2ce8/fairscale/clib/fused_adam_cuda/fused_adam_cuda.cpp', needed by '/t
  mp/pip-install-zqe21k7a/fairscale_4066f1fa225242299ead5fd852fd2ce8/build/temp.linux-x86_64-3.8/fairscale/clib/fused_adam_cuda/fused_adam_cuda.o', missin
  g and no known rule to make it
  ```
  
  Cloning the repository and running `python3.8 -m pip install . --verbose` from within the directory works fine.
  
  </issue>
  <code>
  [start of fairscale/__init__.py]
  1 # Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
  2 #
  3 # This source code is licensed under the BSD license found in the
  4 # LICENSE file in the root directory of this source tree.
  5 
  6 __version__ = "0.1.3"
  7 
  8 ################################################################################
  9 # Import most common subpackages
  10 ################################################################################
  11 
  12 from . import nn
  13
  [end of fairscale/__init__.py]
  [start of setup.py]
  1 #!/usr/bin/env python3
  2 
  3 # Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
  4 
  5 import os
  6 import re
  7 import warnings
  8 
  9 import setuptools
  10 import torch
  11 from torch.utils.cpp_extension import CUDA_HOME, BuildExtension, CUDAExtension
  12 
  13 this_dir = os.path.dirname(os.path.abspath(__file__))
  14 
  15 
  16 def fetch_requirements():
  17     with open("requirements.txt") as f:
  18         reqs = f.read().strip().split("\n")
  19     return reqs
  20 
  21 
  22 # https://packaging.python.org/guides/single-sourcing-package-version/
  23 def find_version(version_file_path):
  24     with open(version_file_path) as version_file:
  25         version_match = re.search(r"^__version__ = ['\"]([^'\"]*)['\"]", version_file.read(), re.M)
  26         if version_match:
  27             return version_match.group(1)
  28         raise RuntimeError("Unable to find version string.")
  29 
  30 
  31 extensions = []
  32 cmdclass = {}
  33 
  34 force_cuda = os.getenv("FORCE_CUDA", "0") == "1"
  35 if (torch.cuda.is_available() and CUDA_HOME is not None) or force_cuda:
  36     extensions.extend(
  37         [
  38             CUDAExtension(
  39                 name="fairscale.fused_adam_cuda",
  40                 include_dirs=[os.path.join(this_dir, "fairscale/clib/fused_adam_cuda")],
  41                 sources=[
  42                     "fairscale/clib/fused_adam_cuda/fused_adam_cuda.cpp",
  43                     "fairscale/clib/fused_adam_cuda/fused_adam_cuda_kernel.cu",
  44                 ],
  45                 extra_compile_args={"cxx": ["-O3"], "nvcc": ["-O3", "--use_fast_math"]},
  46             )
  47         ]
  48     )
  49 
  50     cmdclass["build_ext"] = BuildExtension
  51 else:
  52     warnings.warn("Cannot install FusedAdam cuda.")
  53 
  54 
  55 if __name__ == "__main__":
  56     setuptools.setup(
  57         name="fairscale",
  58         description="fairscale: A PyTorch library for large-scale and high-performance training.",
  59         version=find_version("fairscale/__init__.py"),
  60         install_requires=fetch_requirements(),
  61         include_package_data=True,
  62         packages=setuptools.find_packages(exclude=("tests", "tests.*")),
  63         ext_modules=extensions,
  64         cmdclass=cmdclass,
  65         python_requires=">=3.6",
  66         author="Facebook AI Research",
  67         author_email="todo@fb.com",
  68         classifiers=[
  69             "Programming Language :: Python :: 3.6",
  70             "Programming Language :: Python :: 3.7",
  71             "Programming Language :: Python :: 3.8",
  72             "License :: OSI Approved :: BSD License",
  73             "Topic :: Scientific/Engineering :: Artificial Intelligence",
  74             "Operating System :: OS Independent",
  75         ],
  76     )
  77
  [end of setup.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/fairscale/__init__.py b/fairscale/__init__.py
  --- a/fairscale/__init__.py
  +++ b/fairscale/__init__.py
  @@ -3,7 +3,7 @@
   # This source code is licensed under the BSD license found in the
   # LICENSE file in the root directory of this source tree.
   
  -__version__ = "0.1.3"
  +__version__ = "0.1.4"
   
   ################################################################################
   # Import most common subpackages
  diff --git a/setup.py b/setup.py
  --- a/setup.py
  +++ b/setup.py
  @@ -65,6 +65,8 @@
           python_requires=">=3.6",
           author="Facebook AI Research",
           author_email="todo@fb.com",
  +        long_description="FairScale is a PyTorch extension library for high performance and large scale training on one or multiple machines/nodes. This library extends basic PyTorch capabilities while adding new experimental ones.",
  +        long_description_content_type="text/markdown",
           classifiers=[
               "Programming Language :: Python :: 3.6",
               "Programming Language :: Python :: 3.7",
  
verification_info: {"golden_diff": "diff --git a/fairscale/__init__.py b/fairscale/__init__.py\n--- a/fairscale/__init__.py\n+++ b/fairscale/__init__.py\n@@ -3,7 +3,7 @@\n # This source code is licensed under the BSD license found in the\n # LICENSE file in the root directory of this source tree.\n \n-__version__ = \"0.1.3\"\n+__version__ = \"0.1.4\"\n \n ################################################################################\n # Import most common subpackages\ndiff --git a/setup.py b/setup.py\n--- a/setup.py\n+++ b/setup.py\n@@ -65,6 +65,8 @@\n         python_requires=\">=3.6\",\n         author=\"Facebook AI Research\",\n         author_email=\"todo@fb.com\",\n+        long_description=\"FairScale is a PyTorch extension library for high performance and large scale training on one or multiple machines/nodes. This library extends basic PyTorch capabilities while adding new experimental ones.\",\n+        long_description_content_type=\"text/markdown\",\n         classifiers=[\n             \"Programming Language :: Python :: 3.6\",\n             \"Programming Language :: Python :: 3.7\",\n", "issue": "[bug] pip package 0.1.3 fails to install\nBoth `python3.8 -m pip install fairscale --verbose` and `python3.8 -m pip install fairscale --no-build-isolation --verbose` trigger\r\n\r\n```\r\nninja: error: '/tmp/pip-install-zqe21k7a/fairscale_4066f1fa225242299ead5fd852fd2ce8/fairscale/clib/fused_adam_cuda/fused_adam_cuda.cpp', needed by '/t\r\nmp/pip-install-zqe21k7a/fairscale_4066f1fa225242299ead5fd852fd2ce8/build/temp.linux-x86_64-3.8/fairscale/clib/fused_adam_cuda/fused_adam_cuda.o', missin\r\ng and no known rule to make it\r\n```\r\n\r\nCloning the repository and running `python3.8 -m pip install . --verbose` from within the directory works fine.\n", "before_files": [{"content": "# Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.\n#\n# This source code is licensed under the BSD license found in the\n# LICENSE file in the root directory of this source tree.\n\n__version__ = \"0.1.3\"\n\n################################################################################\n# Import most common subpackages\n################################################################################\n\nfrom . import nn\n", "path": "fairscale/__init__.py"}, {"content": "#!/usr/bin/env python3\n\n# Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.\n\nimport os\nimport re\nimport warnings\n\nimport setuptools\nimport torch\nfrom torch.utils.cpp_extension import CUDA_HOME, BuildExtension, CUDAExtension\n\nthis_dir = os.path.dirname(os.path.abspath(__file__))\n\n\ndef fetch_requirements():\n    with open(\"requirements.txt\") as f:\n        reqs = f.read().strip().split(\"\\n\")\n    return reqs\n\n\n# https://packaging.python.org/guides/single-sourcing-package-version/\ndef find_version(version_file_path):\n    with open(version_file_path) as version_file:\n        version_match = re.search(r\"^__version__ = ['\\\"]([^'\\\"]*)['\\\"]\", version_file.read(), re.M)\n        if version_match:\n            return version_match.group(1)\n        raise RuntimeError(\"Unable to find version string.\")\n\n\nextensions = []\ncmdclass = {}\n\nforce_cuda = os.getenv(\"FORCE_CUDA\", \"0\") == \"1\"\nif (torch.cuda.is_available() and CUDA_HOME is not None) or force_cuda:\n    extensions.extend(\n        [\n            CUDAExtension(\n                name=\"fairscale.fused_adam_cuda\",\n                include_dirs=[os.path.join(this_dir, \"fairscale/clib/fused_adam_cuda\")],\n                sources=[\n                    \"fairscale/clib/fused_adam_cuda/fused_adam_cuda.cpp\",\n                    \"fairscale/clib/fused_adam_cuda/fused_adam_cuda_kernel.cu\",\n                ],\n                extra_compile_args={\"cxx\": [\"-O3\"], \"nvcc\": [\"-O3\", \"--use_fast_math\"]},\n            )\n        ]\n    )\n\n    cmdclass[\"build_ext\"] = BuildExtension\nelse:\n    warnings.warn(\"Cannot install FusedAdam cuda.\")\n\n\nif __name__ == \"__main__\":\n    setuptools.setup(\n        name=\"fairscale\",\n        description=\"fairscale: A PyTorch library for large-scale and high-performance training.\",\n        version=find_version(\"fairscale/__init__.py\"),\n        install_requires=fetch_requirements(),\n        include_package_data=True,\n        packages=setuptools.find_packages(exclude=(\"tests\", \"tests.*\")),\n        ext_modules=extensions,\n        cmdclass=cmdclass,\n        python_requires=\">=3.6\",\n        author=\"Facebook AI Research\",\n        author_email=\"todo@fb.com\",\n        classifiers=[\n            \"Programming Language :: Python :: 3.6\",\n            \"Programming Language :: Python :: 3.7\",\n            \"Programming Language :: Python :: 3.8\",\n            \"License :: OSI Approved :: BSD License\",\n            \"Topic :: Scientific/Engineering :: Artificial Intelligence\",\n            \"Operating System :: OS Independent\",\n        ],\n    )\n", "path": "setup.py"}]}