I am using very simple code on ipython notebook for user to input password. Command hangs after user inputs the password. Here is my code sample -
import getpass
try:
p = getpass.getpass()
except Exception as error:
print('ERROR', error)
else:
print('Password entered:', p)
I tried raw_input() as well, it hangs exactly the same way.
try:
p = raw_input()
except Exception as error:
print('ERROR', error)
else:
print('Password entered:', p)
Any idea what's the solution for this.
I am running jupyter notebook on AWS server. Here are the version details -
Python 2.7.13 |
Anaconda 2.5.0 (64-bit)| (default, Dec 20 2016, 23:09:15)
GCC 4.4.7 20120313
Red Hat 4.4.7-1
IPython.__version__ '4.0.3'
Related
VSCode Version: 1.53.0-insider (x64)
OS Version: Microsoft Windows [Version 10.0.21292.1010]
WSL version: WSL 2
distribution: Ubuntu-20.04
Steps to Reproduce:
(in wsl.exe)Type code-insiders ~ && exit
Press ctrl+j in the VSCode window
Type explorer.exe .
Result:
It shows me this error:
<3>init: (632) ERROR: UtilConnectUnix:466: connect failed 111
Question:
How can I fix it and why it is happening ?
Extensions on WSL:
ms-vscode.cpptools
eamodio.gitlens
ms-toolsai.jupyter
ms-python.vscode-pylance
ms-python.python
I think I had a similar issue here, you have to check the environment variables of you WSL2 session.
WSL_INTEROP=/run/WSL/197_interop
if this points to a not existing socket the connection fails.
cheers
Marco
My configuration:
ubuntu 16.04 eclipse 4.7 python 2.7.12 PyDev 6.2.0.2017
When running test.py which contains blow code from PyDev:
print os.environ['PATH']
Expected values got printed out,then change 'PATH' to 'LIB_ROOT'
print os.environ['LIB_ROOT']
Got error:
LIB_ROOT=os.environ['LIB_ROOT']
File "/usr/lib/python2.7/UserDict.py", line 40, in __getitem__
raise KeyError(key)
KeyError: 'LIB_ROOT'
And same variable can be accessed from ipython console
and run test.py in bash
python test.py
expected valued got printed out also,can anybody tell me why?
Since some updates of ipython and efforts to install R in jupyter I just can't even add 1 and 1:
1+1 just yields no output in a python notebook (jupyter).
The console from where the notebook is launched indicates some problem with IPKernel App ...
$ jupyter notebook
[I 16:15:44.792 NotebookApp] Serving notebooks from local directory: /home/jeanpat
[I 16:15:44.792 NotebookApp] 0 active kernels
[I 16:15:44.792 NotebookApp] The IPython Notebook is running at: http://localhost:8888/
[I 16:15:44.792 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
(process:11705): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
[I 16:15:50.325 NotebookApp] Kernel started: 50c937a7-9ab6-456f-8e65-6d7de55301a6
[IPKernelApp] ERROR | No such comm target registered: ipython.widget
[I 16:17:50.327 NotebookApp] Saving file at /Untitled.ipynb
However 1+1 yields 2 if executed in an ipython console:
~$ ipython
Python 2.7.9 (default, Apr 2 2015, 15:33:21)
Type "copyright", "credits" or "license" for more information.
IPython 4.0.0 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
In [1]: 1+1
Out[1]: 2
Removing ~/.local/share/jupyter fixed the problem. Running with the debug mode (jupyter notebook --debug) showed where jupyter was looking for its kernels. – Jean-Pat 2 hours ago
Environment is Ubuntu 12.x LTS 64 bit. I ran the install as follows :
sudo apt-get install python-numpy python-scipy python-matplotlib ipython ipython-notebook python-pandas python-sympy python-nose
Everything installed great, and I tried out the 'getting started' example only to come upon this error as if my env. is't set correctly..
See orig # http://www.scipy.org/getting-started.html
usernamep#ubuntudev:~$ ipython --pylab
Python 2.7.3 (default, Sep 26 2013, 20:03:06)
Type "copyright", "credits" or "license" for more information.
IPython 0.12.1 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
Welcome to pylab, a matplotlib-based Python environment [backend: TkAgg].
For more information, type 'help(pylab)'.
In [1]: from scipy import special, optimize
In [2]: f = lambda x: -special.jv(3,x)
In [3]: sol = optimize.minimize(f, 1.0)
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
/home/user/<ipython-input-3-ea43eb308d3c> in <module>()
----> 1 sol = optimize.minimize(f, 1.0)
AttributeError: 'module' object has no attribute 'minimize'
In [4]:
Do I need to reform their example's import? Checking their docs now...
optimize.minimize was introduced in Scipy v.0.11 (see http://docs.scipy.org/doc/scipy/reference/generated/scipy.optimize.minimize.html ).
On Debian, that would mean that you need Jessie or better. On Ubuntu, you appear to need raring or better.
Almost certainly the scipy you installed using apt-get is simply too old to have minimize: (0.10, I'd guess). The code works for me:
>>> from scipy import special, optimize
>>> def f(x): return -special.jv(3,x)
>>> sol = optimize.minimize(f, 1.0)
>>> sol
status: 0
success: True
njev: 17
nfev: 51
hess_inv: array([[ 4.70024446]])
fun: -0.43439442684052476
x: array([ 4.20118891])
message: 'Optimization terminated successfully.'
jac: array([ -3.72529030e-09])
I think you'll be better off using pip to install the stack.
python-scipy package in the Ubuntu 12 is a bit old. I think it is ver 0.9.0. The optimize.minimize function was added to scipy ver 0.11.0.
I am using Enthought's Canopy environment on a 64 bit Linux OS. Everything works fine in the Ipython console which is attached with the editor. But when I ipython in the terminal and try to use magic functions, I get the following error.
---------------------------------------------------------------------------
error Traceback (most recent call last)
<ipython-input-3-29a4050aa687> in <module>()
----> 1 get_ipython().show_usage()
/home/shahensha/Development/Canopy/appdata/canopy-1.0.3.1262.rh5-x86_64/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc in show_usage(self)
2931 def show_usage(self):
2932 """Show a usage message"""
-> 2933 page.page(IPython.core.usage.interactive_usage)
2934
2935 def extract_input_lines(self, range_str, raw=False):
/home/shahensha/Development/Canopy/appdata/canopy-1.0.3.1262.rh5-x86_64/lib/python2.7/site-packages/IPython/core/page.pyc in page(strng, start, screen_lines, pager_cmd)
188 if screen_lines <= 0:
189 try:
--> 190 screen_lines += _detect_screen_size(screen_lines_def)
191 except (TypeError, UnsupportedOperation):
192 print(str_toprint, file=io.stdout)
/home/shahensha/Development/Canopy/appdata/canopy-1.0.3.1262.rh5-x86_64/lib/python2.7/site-packages/IPython/core/page.pyc in _detect_screen_size(screen_lines_def)
112 # Proceed with curses initialization
113 try:
--> 114 scr = curses.initscr()
115 except AttributeError:
116 # Curses on Solaris may not be complete, so we can't use it there
/home/shahensha/Development/Canopy/appdata/canopy-1.0.3.1262.rh5-x86_64/lib/python2.7/curses/__init__.pyc in initscr()
31 # instead of calling exit() in error cases.
32 setupterm(term=_os.environ.get("TERM", "unknown"),
---> 33 fd=_sys.__stdout__.fileno())
34 stdscr = _curses.initscr()
35 for key, value in _curses.__dict__.items():
error: setupterm: could not find terminfo database
So, I installed a bare bones iPython shell which is not the one provided by Canopy and tried the same magic functions in there and it works fine.
Have I done something wrong with the installation? Please help
Thanks a lot
shahensha
This is not a solution, but just an observation. My desktop is MacOS-X and I connect to a Centos machine to run Enthought Canopy both 64 bit. I get the same error message as OP if I ssh from iterm2, but not if I use the Terminal app.
I am not sure what the underlying reason is, but may be someone can verify if a similar situation is true for linux. Interestingly I can use either iterm2 or Terminal on the local canopy without any issues.
Update:
I just noticed that the TERM environment variable in iterm2 was set to "xterm" while the Terminal app was showing "xterm-256color". Issuing the command export TERM="xterm-256color" before running the Canopy ipython in terminal solves the issue for me in iterm2.
Problem reproduction:
$ python -c 'import curses; curses.setupterm()'
Traceback (most recent call last):
File "<string>", line 1, in <module>
_curses.error: setupterm: could not find terminfo database
This irc log gave me the idea that this error was to do with libncursesw.
My Canopy version is 1.0.3.1262.rh5-x86_64. I have installed it to ~/src/canopy.
In ~/src/canopy/appdata/canopy-1.0.3.1262.rh5-x86_64/lib we can see that my canopy install has libncursesw.so.5.7.
My machine (Debian Wheezy 64bit) has libncursesw.so.5.9 (in /lib/x86_64-linux-gnu/libncursesw.so.5.9). I made canopy use this. You can toggle the problem on / off by using LD_PRELOAD and pointing at the .so file.
Solution
Replace libncurses.so.5.7 with libncurses.so.5.9:
CANOPYDIR=$HOME/src/canopy
CANOPYLIBS=$CANOPYDIR/appdata/canopy-1.0.3.1262.rh5-x86_64/lib/
SYSTEMLIBS=/lib/x86_64-linux-gnu
cp $SYSTEMLIBS/libncurses.so.5.9 $CANOPYLIBS
ln -sf $CANOPYLIBS/libncurses.so.5.9 $CANOPYLIBS/libncurses.so.5
It appears that Canopy User Python is not your default. See this article:
https://support.enthought.com/entries/23646538-Make-Canopy-s-Python-be-your-default-Python-i-e-on-the-PATH-
Update: Not true here -- instead, see batu's workaround answer.