<p dir="auto">Reproduce:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="$ brew install python --framework
$ mkvirtualenv bean -p /usr/local/Cellar/python/2.7.2/Frameworks/Python.framework/Python 
$ pip install -U celery-with-beanstalk"><pre class="notranslate"><code class="notranslate">$ brew install python --framework
$ mkvirtualenv bean -p /usr/local/Cellar/python/2.7.2/Frameworks/Python.framework/Python 
$ pip install -U celery-with-beanstalk
</code></pre></div>
<p dir="auto">Relevent lines from pip.log:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="  Downloading celery-with-beanstalk-2.4.tar.gz
  Downloading from URL http://pypi.python.org/packages/source/c/celery-with-beanstalk/celery-with-beanstalk-2.4.tar.gz#md5=348fe773ee727ab8daeddd5e1339a87d (from http://pypi.python.org/simple/celery-with-beanstalk/)
  Running setup.py egg_info for package celery-with-beanstalk
    Traceback (most recent call last):
      File &quot;&lt;string&gt;&quot;, line 14, in &lt;module&gt;
    IOError: [Errno 2] No such file or directory: '/Users/glind/venvs/bean/build/celery-with-beanstalk/setup.py'
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File &quot;&lt;string&gt;&quot;, line 14, in &lt;module&gt;

IOError: [Errno 2] No such file or directory: '/Users/glind/venvs/bean/build/celery-with-beanstalk/setup.py'

----------------------------------------
Command python setup.py egg_info failed with error code 1
Exception information:
Traceback (most recent call last):
  File &quot;/Users/glind/venvs/bean/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg/pip/basecommand.py&quot;, line 126, in main
    self.run(options, args)
  File &quot;/Users/glind/venvs/bean/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg/pip/commands/install.py&quot;, line 223, in run
    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
  File &quot;/Users/glind/venvs/bean/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg/pip/req.py&quot;, line 986, in prepare_files
    req_to_install.run_egg_info()
  File &quot;/Users/glind/venvs/bean/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg/pip/req.py&quot;, line 222, in run_egg_info
    command_desc='python setup.py egg_info')
  File &quot;/Users/glind/venvs/bean/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg/pip/__init__.py&quot;, line 255, in call_subprocess
    % (command_desc, proc.returncode))
InstallationError: Command python setup.py egg_info failed with error code 1"><pre class="notranslate"><code class="notranslate">  Downloading celery-with-beanstalk-2.4.tar.gz
  Downloading from URL http://pypi.python.org/packages/source/c/celery-with-beanstalk/celery-with-beanstalk-2.4.tar.gz#md5=348fe773ee727ab8daeddd5e1339a87d (from http://pypi.python.org/simple/celery-with-beanstalk/)
  Running setup.py egg_info for package celery-with-beanstalk
    Traceback (most recent call last):
      File "&lt;string&gt;", line 14, in &lt;module&gt;
    IOError: [Errno 2] No such file or directory: '/Users/glind/venvs/bean/build/celery-with-beanstalk/setup.py'
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "&lt;string&gt;", line 14, in &lt;module&gt;

IOError: [Errno 2] No such file or directory: '/Users/glind/venvs/bean/build/celery-with-beanstalk/setup.py'

----------------------------------------
Command python setup.py egg_info failed with error code 1
Exception information:
Traceback (most recent call last):
  File "/Users/glind/venvs/bean/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg/pip/basecommand.py", line 126, in main
    self.run(options, args)
  File "/Users/glind/venvs/bean/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg/pip/commands/install.py", line 223, in run
    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
  File "/Users/glind/venvs/bean/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg/pip/req.py", line 986, in prepare_files
    req_to_install.run_egg_info()
  File "/Users/glind/venvs/bean/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg/pip/req.py", line 222, in run_egg_info
    command_desc='python setup.py egg_info')
  File "/Users/glind/venvs/bean/lib/python2.7/site-packages/pip-1.0.2-py2.7.egg/pip/__init__.py", line 255, in call_subprocess
    % (command_desc, proc.returncode))
InstallationError: Command python setup.py egg_info failed with error code 1
</code></pre></div>
<p dir="auto">ls -1:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="(bean)517 glind ~ $ ls -1 /Users/glind/venvs/bean/build/celery-with-beanstalk/
PKG-INFO
README
celery_with_beanstalk.egg-info
pip-egg-info
setup.cfg
tmp6vUV58.py"><pre class="notranslate"><code class="notranslate">(bean)517 glind ~ $ ls -1 /Users/glind/venvs/bean/build/celery-with-beanstalk/
PKG-INFO
README
celery_with_beanstalk.egg-info
pip-egg-info
setup.cfg
tmp6vUV58.py
</code></pre></div>
<p dir="auto">Seems like setup.py is missing from the package (there's tmpEiXCu1.py which looks like setup.py)</p>