Dear Firedrakers, My pip doesn't work on my workstation since trying to rebuild PETSc post the recent change. I get: (firedrake)cjc1@ma-gauss:~/firedrake/src/firedrake/firedrake$ pip Traceback (most recent call last): File "/home/cjc1/firedrake/bin/pip", line 7, in <module> from pip import main File "/home/cjc1/firedrake/local/lib/python2.7/site-packages/pip/__init__.py", line 13, in <module> from pip.utils import get_installed_distributions, get_prog File "/home/cjc1/firedrake/local/lib/python2.7/site-packages/pip/utils/__init__.py", line 15, in <module> import zipfile File "/usr/lib/python2.7/zipfile.py", line 6, in <module> import io File "/home/cjc1/firedrake/src/firedrake/firedrake/io.py", line 9, in <module> from pyop2.logger import warning, RED File "/home/cjc1/firedrake/local/lib/python2.7/site-packages/pyop2/__init__.py", line 9, in <module> from op2 import * File "/home/cjc1/firedrake/local/lib/python2.7/site-packages/pyop2/op2.py", line 38, in <module> import backends File "/home/cjc1/firedrake/local/lib/python2.7/site-packages/pyop2/backends.py", line 41, in <module> from logger import warning File "/home/cjc1/firedrake/local/lib/python2.7/site-packages/pyop2/logger.py", line 38, in <module> from mpi import MPI File "/home/cjc1/firedrake/local/lib/python2.7/site-packages/pyop2/mpi.py", line 38, in <module> from utils import trim File "/home/cjc1/firedrake/local/lib/python2.7/site-packages/pyop2/utils.py", line 46, in <module> from configuration import configuration File "/home/cjc1/firedrake/local/lib/python2.7/site-packages/pyop2/configuration.py", line 42, in <module> class Configuration(dict): File "/home/cjc1/firedrake/local/lib/python2.7/site-packages/pyop2/configuration.py", line 86, in Configuration os.path.join(gettempdir(), File "/usr/lib/python2.7/tempfile.py", line 269, in gettempdir tempdir = _get_default_tempdir() File "/usr/lib/python2.7/tempfile.py", line 200, in _get_default_tempdir with _io.open(fd, 'wb', closefd=False) as fp: AttributeError: 'module' object has no attribute 'open' Does this make sense to anyone? all the best --cjc -- http://www.imperial.ac.uk/people/colin.cotter www.cambridge.org/9781107663916