prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Do not import `parsl` before requirements are setup
  ```
  [annawoodard@midway001 parsl]$ python setup.py install
  Traceback (most recent call last):
    File "setup.py", line 2, in <module>
      from parsl.version import VERSION
    File "/home/annawoodard/parsl/parsl/__init__.py", line 35, in <module>
      from parsl.executors.ipp import IPyParallelExecutor
    File "/home/annawoodard/parsl/parsl/executors/ipp.py", line 4, in <module>
      from ipyparallel import Client
  ModuleNotFoundError: No module named 'ipyparallel'
  ```
  
  Setuptools is supposed to take care of dependencies for us, but importing parsl in `setup.py` breaks that (because we require the dependencies by importing the parsl version from `version.py` before they can be installed). We should avoid this.
  
  </issue>
  <code>
  [start of setup.py]
  1 from setuptools import setup, find_packages
  2 from parsl.version import VERSION
  3 
  4 with open('requirements.txt') as f:
  5     install_requires = f.readlines()
  6 
  7 # tests_require = parse_requirements('test-requirements.txt')
  8 
  9 setup(
  10     name='parsl',
  11     version=VERSION,
  12     description='Simple data dependent workflows in Python',
  13     long_description='Simple and easy parallel workflows system for Python',
  14     url='https://github.com/Parsl/parsl',
  15     author='Yadu Nand Babuji',
  16     author_email='yadu@uchicago.edu',
  17     license='Apache 2.0',
  18     download_url='https://github.com/Parsl/parsl/archive/{}.tar.gz'.format(VERSION),
  19     package_data={'': ['LICENSE']},
  20     packages=find_packages(),
  21     install_requires=install_requires,
  22     classifiers=[
  23         # Maturity
  24         'Development Status :: 3 - Alpha',
  25         # Intended audience
  26         'Intended Audience :: Developers',
  27         # Licence, must match with licence above
  28         'License :: OSI Approved :: Apache Software License',
  29         # Python versions supported
  30         'Programming Language :: Python :: 3.5',
  31         'Programming Language :: Python :: 3.6',
  32     ],
  33     keywords=['Workflows', 'Scientific computing'],
  34 )
  35
  [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/setup.py b/setup.py
  --- a/setup.py
  +++ b/setup.py
  @@ -1,5 +1,7 @@
   from setuptools import setup, find_packages
  -from parsl.version import VERSION
  +
  +with open('parsl/version.py') as f:
  +    exec(f.read())
   
   with open('requirements.txt') as f:
       install_requires = f.readlines()
  
verification_info: {"golden_diff": "diff --git a/setup.py b/setup.py\n--- a/setup.py\n+++ b/setup.py\n@@ -1,5 +1,7 @@\n from setuptools import setup, find_packages\n-from parsl.version import VERSION\n+\n+with open('parsl/version.py') as f:\n+    exec(f.read())\n \n with open('requirements.txt') as f:\n     install_requires = f.readlines()\n", "issue": "Do not import `parsl` before requirements are setup\n```\r\n[annawoodard@midway001 parsl]$ python setup.py install\r\nTraceback (most recent call last):\r\n  File \"setup.py\", line 2, in <module>\r\n    from parsl.version import VERSION\r\n  File \"/home/annawoodard/parsl/parsl/__init__.py\", line 35, in <module>\r\n    from parsl.executors.ipp import IPyParallelExecutor\r\n  File \"/home/annawoodard/parsl/parsl/executors/ipp.py\", line 4, in <module>\r\n    from ipyparallel import Client\r\nModuleNotFoundError: No module named 'ipyparallel'\r\n```\r\n\r\nSetuptools is supposed to take care of dependencies for us, but importing parsl in `setup.py` breaks that (because we require the dependencies by importing the parsl version from `version.py` before they can be installed). We should avoid this.\n", "before_files": [{"content": "from setuptools import setup, find_packages\nfrom parsl.version import VERSION\n\nwith open('requirements.txt') as f:\n    install_requires = f.readlines()\n\n# tests_require = parse_requirements('test-requirements.txt')\n\nsetup(\n    name='parsl',\n    version=VERSION,\n    description='Simple data dependent workflows in Python',\n    long_description='Simple and easy parallel workflows system for Python',\n    url='https://github.com/Parsl/parsl',\n    author='Yadu Nand Babuji',\n    author_email='yadu@uchicago.edu',\n    license='Apache 2.0',\n    download_url='https://github.com/Parsl/parsl/archive/{}.tar.gz'.format(VERSION),\n    package_data={'': ['LICENSE']},\n    packages=find_packages(),\n    install_requires=install_requires,\n    classifiers=[\n        # Maturity\n        'Development Status :: 3 - Alpha',\n        # Intended audience\n        'Intended Audience :: Developers',\n        # Licence, must match with licence above\n        'License :: OSI Approved :: Apache Software License',\n        # Python versions supported\n        'Programming Language :: Python :: 3.5',\n        'Programming Language :: Python :: 3.6',\n    ],\n    keywords=['Workflows', 'Scientific computing'],\n)\n", "path": "setup.py"}]}