On Wed, Dec 23, 2015 at 09:37:37AM -0500, Fred Smith wrote: > wget -nv -O- https://raw.githubusercontent.com/kovidgoyal/calibre/master/setup/linux-installer.py | python -c "import sys; main=lambda x,y:sys.stderr.write('Download failed\n'); exec(sys.stdin.read()); main('~/calibre-bin', True)" > 2015-12-22 07:44:40 URL:https://raw.githubusercontent.com/kovidgoyal/calibre/master/setup/linux-installer.py [25887/25887] -> "-" [1] > Installing to /home/fredex/calibre-bin/calibre > Downloading tarball signature securely... > Traceback (most recent call last): > File "<string>", line 1, in <module> > File "<string>", line 670, in main > File "<string>", line 655, in run_installer > File "<string>", line 627, in download_and_extract > File "<string>", line 619, in get_tarball_info > File "<string>", line 578, in get_https_resource_securely > File "<string>", line 487, in __init__ > File "/usr/lib64/python2.7/httplib.py", line 1182, in __init__ > context.load_cert_chain(cert_file, key_file) > ssl.SSLError: [SSL] PEM lib (_ssl.c:2757) > I skimmed that python script, and it seems to be making an SSL connection to https://code.calibre-ebook.com/ which appears to have a self-signed certificate. It looks like it includes the cert file, but python 2.7 doesn't appear to like you just using httplib.HTTPSConnection without a key file too, which isn't included. (see https://docs.python.org/2/library/httplib.html#httplib.HTTPSConnection ) I suspect this must be a bug in the upstream code. -- Jonathan Billings <billings at negate.org>