Importerror: No Module Named _Ssl

ImportError: No module named _ssl

Did you build the Python from source? If so, you need the --with-ssl option while building.

ImportError: No module named _ssl occurring even when /usr/lib64/python2.7/lib-dynload/_ssl.so is available fc18

I finally figure out the issue. There were 2 python installations. The installation i was checking for openssl lib, contained the file. But by default other installation of python was being used for running the programs. Once I switched to correct python installation, the error went away.

Trouble using pyinstaller No module named '_ssl'

I finally find the solution.
For people who facing the same trouble:

Here is the command I use for create the binary file:

pyinstaller --hidden-import _ssl --hidden-import engineio.async_gevent --hidden-import engineio.async_eventlet  --hidden-import ssl ./server_websocket.py -y

I also need to modify the socketIO call:

app = Flask(__name__)
app.config['SECRET_KEY'] = 'secret!'
socketio = SocketIO(app,     async_mode='gevent')

And import that:

from engineio.async_drivers import gevent

ImportError: No module named _ssl with dev_appserver.py from Google App Engine

You can test if ssl is available at your local system by opening a python shell and typing import ssl. If no error appears then the problem is something else, otherwise you don't have the relevant libraries installed on your system. If you are using a Linux operating system try sudo apt-get install openssl openssl-devel or the relevant instructions for your operating system to install them locally. If you are using windows, these are the instructions.

How to import _ssl in python 2.7.6?

I fixed the problem finally!
The _ssl module is a built-in module for python, but it requires openssl installed on your system.

Change to root user first!
1.Install openssl and libssl-dev.
If on debian OS

apt-get install openssl
apt-get install libssl-dev

2.Recompile python

cd Python2.7.6
./configure
make && make install

But actually, I fix the problem in this way!
1.Install openssl
I download a package from the Internet, which is openssl-1.0.2d.tar.gz

tar zxvf openssl-1.0.2d.tar.gz
cd openssl-1.0.2d
./config -fPIC   //configuration：create path independent libssl.a
make && make install

2.Recompile python2.7, and make it support ssl module

tar xvf Python-2.7.6.tar
cd Python-2.7.6
vim Modules/Setup.dist 

find the following line and uncomment it.(use /ssl+Enter to quickly locate these lines in vim)

# Socket module helper for socket(2)
_socket socketmodule.c timemodule.c

# Socket module helper for SSL support; you must comment out the other
# socket line above, and possibly edit the SSL variable:
SSL=/usr/local/ssl
_ssl _ssl.c \
        -DUSE_SSL -I$(SSL)/include -I$(SSL)/include/openssl \
        -L$(SSL)/lib -lssl -lcrypto

and then config and make, make install

./configure --enable-shared //--enable-shared option means to generate dynamic library libpython2.7.so.1.0
make && make install

Our project depends on libpython2.7.so.1.0. Now I can "import ssl" or "import _ssl" successfully in my python script or python interpreter with the new libpython2.7.so.1.0.

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