This prevents tests from failing when run from a Python installed in a
read-only directory. The code is a bit uglier; shutil.copytree calls
copystat on directories behind our back, so I had to add an os.walk
with os.chmod (*and* os.path.join!) calls. shutil, I am disappoint.
This changeset is dedicated to the hundreds of neurons that were lost
while I was debugging this on an otherwise fine afternoon.
The two public functions in database default to sys.path if the given
*paths* argument is None; the private functions don’t have default
values for their arguments anymore, which is fine as the public
functions that call them pass their arguments down. Likewise in
install, the functions will pass down their *paths* arguments down to
database functions.
A one-line unneeded function in install was removed instead of being
changed, and the few remaining tests that used brute-force restoration
of sys.path have been cleaned up to use sys.path.remove.
Éric Araujo
Tarek Ziade
Ezio Melotti
Victor Stinner