On Tue, Mar 31, 2020 at 4:21 AM <dcwhat...@gmail.com> wrote: > > On Monday, March 30, 2020 at 12:08:54 PM UTC-4, Chris Angelico wrote: > > On Tue, Mar 31, 2020 at 2:31 AM wrote: > > > > > > Hi, > > > > > > I'm able to get past the > > > > > > CERTIFICATE_VERIFY_FAILED > > > > > > > > > error with various packages by specifying trusted host on the command > > > line. > > > > > > > > > But I can't seem to upgrade pip itself. I keep getting the message > > > > > > "You are using pip version 19.2.3, however 20.0.2 is available." > > > > > > But none of the commands on the web seem to be able to upgrade pip, > > > without getting either the CERTIFICATE_VERIFY_FAILED error, or the above > > > message. > > > > > > > Before trying to solve the symptom, see what the underlying problem > > is. Are you actually sure you're getting to the right server? Maybe > > the actual problem is that you aren't able to connect to the true > > PyPI, and that's what the cert failure is warning you of. > > > > ChrisA > > Hi ChrisA, > > Nope, I'm not certain. I just copied and pasted a command line on the web. > The command line doesn't specify a server. >
First off, try adding the "--verbose" option to pip, which should tell you the exact URLs that it's trying to download (which, in effect, will tell you the servers). When I do that, I'm seeing two key servers: pypi.org (https://pypi.org/simple/pip/) and files.pythonhosted.org (lots of https://files.pythonhosted.org/packages/.... URLs). When I look up those names, I get these results: pypi.org. 86278 IN A 151.101.192.223 pypi.org. 86278 IN A 151.101.64.223 pypi.org. 86278 IN A 151.101.128.223 pypi.org. 86278 IN A 151.101.0.223 files.pythonhosted.org. 86400 IN CNAME dualstack.r.ssl.global.fastly.net. dualstack.r.ssl.global.fastly.net. 30 IN A 151.101.81.63 Check two things: firstly, do your URLs show the same domains? And secondly, are you connecting to the same IP addresses? If either of those is different, it's possible that you have a local PyPI mirror, or (more likely) something is blocking those requests and silently redirecting them to something else, such as a login page. But at that point, it's impossible to guess at anything, so start with the above. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
