ImportError: cannot import name HTTPSHandler using PIP

Question

Facing an HTTPSHandler error while installing python packages using pip, following is the stack trace,

--------desktop:~$ pip install Django==1.3
Traceback (         


        

Answer 1

You need to install the OpenSSL header files before building Python if you need SSL support. On Debian and Ubuntu, they are in a package called libssl-dev. You might need some more dependencies, as noted here.

Answer 2

I was having this problem on Mac OSX, even after confirming my PATH, etc.

Did a; pip uninstall virtualenv then install virtualenv and it seemed to works now.

At the time I had forced brew to link openssl, unlinked it and virtualenv still seems to work but maybe that's because it was originally linked when I reinstalled it.

Answer 3

On OSX, brew kept refusing to link against its openssl with this error:

15:27 $ brew link --force openssl
Warning: Refusing to link: openssl
Linking keg-only openssl means you may end up linking against the insecure,
deprecated system OpenSSL while using the headers from Homebrew's openssl.
Instead, pass the full include/library paths to your compiler e.g.:
  -I/usr/local/opt/openssl/include -L/usr/local/opt/openssl/lib

I finally was able to get it working with:

  brew remove openssl
  brew uninstall --force openssl
  brew install openssl
  export LDFLAGS=-L/usr/local/opt/openssl/lib
  export CPPFLAGS=-I/usr/local/opt/openssl/include
  brew remove python
  brew update
  brew install python

Answer 4

It seems your pip requires HTTPSHandler which is part of SSL library.

OSX

On OS X you should link OpenSSL during Python installation (See: #14497).

For Python 2:

brew reinstall python --with-brewed-openssl
pip install --upgrade pip

For Python 3:

brew reinstall python3 --with-brewed-openssl
pip3 install --upgrade pip

You could have multiple Python instances together, to list them run:

brew list | grep ^python

Or list your version via ls -al /usr/local/lib/python*.

Answer 5

I'm using Redhat and have met the same problem.

My solution is :

1. install openssl and openssl-devel ---- yum install openssl openssl-devel -y
2. install krb5-devel ---- yum install krb5-devel
3. change to your python's directory and recompile it ---- make

If I didn't do the 2nd step, when I recompiled my python2.7 , the log would say " fail to build module _ssl".

Answer 6

OSX + homebrew users:

You can get the latest updates to the recipe:

brew reinstall python

But if you still get the issue, e.g. maybe you have upgraded your OS, then you may need to get the latest openssl first. You can check which version and where it is used from:

openssl version -a
which openssl

To get the latest openssl:

brew update
brew install openssl
brew link --overwrite --dry-run openssl  # safety first.
brew link openssl --overwrite

This may issue a warning:

bash-4.3$ brew link --overwrite --dry-run openssl
Warning: Refusing to link: openssl Linking keg-only openssl means you may end up linking against the insecure, deprecated system OpenSSL while using the headers from Homebrew's openssl. 
Instead, pass the full include/library paths to your compiler e.g.: 
-I/usr/local/opt/openssl/include -L/usr/local/opt/openssl/lib

Side note: this warning means that for other apps, you may want to use

export LDFLAGS=-L/usr/local/opt/openssl/lib
export CPPFLAGS=-I/usr/local/opt/openssl/include

Then recompile python:

brew uninstall python
brew install python --with-brewed-openssl

or for python 3

brew uninstall python3
brew install python3 --with-brewed-openssl