I'm trying to install rpy2 to use with Ipython under my Enthought python installation (under windows7), but cannot get this to work (my first attempt to install external packages). From what I can understand pip can be used under Enthought to install external packages (see e.g. Using non-EPD package installers such as pip), and the package seems to be downloaded. EPD-python is also first in my path, so this should not be an issue. However, during installation I get an the error: invalid command 'egg_info'.
I have also tried the suggestions in this Q to explicitly prefix the PATH: Install a Python package into a different directory using pip? (the problem doesn't seem to lie in a path issue though).
I have also seen this Q on the invalid command 'egg_info' error, with the suggestion to upgrade setuptools, but Enthought explicitly warns against messing with other versions of setuptools (see Installing packages into Canopy User Python from the OS command line) - maybe this is obsolete info thought?.
This might be a trivial question, but I cannot get this working.
Command:
pip install rpy2
A section of the log file is pasted below:
Downloading from URL https://pypi.python.org/packages/source/r/rpy2/rpy2-2.4.3.tar.gz#md5=57e3fda409226dffb543c913c8553cdc (from https://pypi.python.org/simple/rpy2/)
Running setup.py (path:c:\users\tobjep\appdata\local\temp\pip_build_tobjep\rpy2\setup.py) egg_info for package rpy2
usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: -c --help [cmd1 cmd2 ...]
or: -c --help-commands
or: -c cmd --help
error: invalid command 'egg_info'
Complete output from command python setup.py egg_info:
usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: -c --help [cmd1 cmd2 ...]
or: -c --help-commands
or: -c cmd --help
error: invalid command 'egg_info'
----------------------------------------
Cleaning up...
Removing temporary dir c:\users\tobjep\appdata\local\temp\pip_build_tobjep...
Command python setup.py egg_info failed with error code 1 in c:\users\tobjep\appdata\local\temp\pip_build_tobjep\rpy2
Exception information:
Traceback (most recent call last):
File "C:\Program_\EPD_python27\lib\site-packages\pip\basecommand.py", line 122, in main
status = self.run(options, args)
File "C:\Program_\EPD_python27\lib\site-packages\pip\commands\install.py", line 278, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "C:\Program_\EPD_python27\lib\site-packages\pip\req.py", line 1229, in prepare_files
req_to_install.run_egg_info()
File "C:\Program_\EPD_python27\lib\site-packages\pip\req.py", line 325, in run_egg_info
command_desc='python setup.py egg_info')
File "C:\Program_\EPD_python27\lib\site-packages\pip\util.py", line 697, in call_subprocess
% (command_desc, proc.returncode, cwd))
InstallationError: Command python setup.py egg_info failed with error code 1 in c:\users\tobjep\appdata\local\temp\pip_build_tobjep\rpy2
Update:
Following other advice I tried to install distribute (enpkg distribute) and then reinstalling pip. After this the installation of rpy2 still fails, but now with the error NameError: name 'sys_platform' is not defined:
Traceback (most recent call last):
File "<string>", line 17, in <module>
File "c:\users\tobjep\appdata\local\temp\pip_build_tobjep\rpy2\setup.py", line 447, in <module>
'rpy2': ['doc/source/rpy2_logo.png', ]}
File "C:\Program_\EPD_python27\lib\distutils\core.py", line 112, in setup
_setup_distribution = dist = klass(attrs)
File "C:\Program_\EPD_python27\lib\site-packages\setuptools\dist.py", line 225, in __init__
_Distribution.__init__(self,attrs)
File "C:\Program_\EPD_python27\lib\distutils\dist.py", line 287, in __init__
self.finalize_options()
File "C:\Program_\EPD_python27\lib\site-packages\setuptools\dist.py", line 257, in finalize_options
ep.require(installer=self.fetch_build_egg)
File "C:\Program_\EPD_python27\lib\site-packages\pkg_resources.py", line 2099, in require
working_set.resolve(self.dist.requires(self.extras),env,installer))
File "C:\Program_\EPD_python27\lib\site-packages\pkg_resources.py", line 2309, in requires
dm = self._dep_map
File "C:\Program_\EPD_python27\lib\site-packages\pkg_resources.py", line 2538, in _dep_map
self.__dep_map = self._compute_dependencies()
File "C:\Program_\EPD_python27\lib\site-packages\pkg_resources.py", line 2571, in _compute_dependencies
common = frozenset(reqs_for_extra(None))
File "C:\Program_\EPD_python27\lib\site-packages\pkg_resources.py", line 2568, in reqs_for_extra
if req.marker_fn(override={'extra':extra}):
File "C:\Program_\EPD_python27\lib\site-packages\_markerlib\markers.py", line 109, in marker_fn
return eval(compiled_marker, environment)
File "<environment marker>", line 1, in <module>
NameError: name 'sys_platform' is not defined
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
