ipython

问题 For now, after reconnect ipython notebook is not able to print any output from running kernel. I tried following work-around: import sys, time with open('foo.log','w') as sys.stdout: for i in range(5): print i time.sleep(1) everything is nice, I can see the process with tail -f foo.log , but at the end whole thing crashes and I get following error: ERROR:tornado.general:Uncaught exception, closing connection. Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/zmq

问题 I have a friendly month class I enjoy that returns an ugly robot friendly string: In [3]: d = date(2010, 1, 31) In [4]: m = Month(d) In [5]: m Out[5]: <dfa.date_range.Month at 0x7fb4d5793cc0> I want m to show something like 1-31-2010 . I try using unicode and str , just like in django, no dice: class Month(object): def __init__(self, dateobj): self.dateobj = dateobj # def __unicode__(self): # return self.dateobj def __str__(self): return self.dateobj @property def first_day(self): return self

问题 I would like to convert an ipython notebook to mediawiki markup. I had two ideas how to do that: Customize an export for the nbconvert tool. Export to LaTeX first and then use pandoc to convert it to mediawiki markup. I couldn't find anything on the first option. The problem for the second option is that LaTeX output puts in a lot of custom commands which are not converted into <source lang='python'> ... </source> tags correctly. Does anybody have a good idea? 回答1: you can probably pitch-in

问题 I installed the python scientific environment (numpy, scipy, matplotlib, pandas, ipython) a while ago on OSX using brew and either pip or easy_install (or the 2 of them, I don't remember). Now if try to run ipython I get: -> ipython -bash: ipython: command not found Then I did: -> sudo find . -iname "*ipython*" Password: find: ./dev/fd/3: Not a directory find: ./dev/fd/4: Not a directory ./Users/jfk/.ipython ./usr/local/Cellar/matplotlib/1.2.0/lib/python2.7/site-packages/matplotlib/sphinxext

问题 I am working on a project which combines high-performance algorithms written in C++ with a Python interface. C++ classes and functions are wrapped and exposed to Python via the Cython compiler. Suppose I call a long running native function from the Python interpreter (my preferred one is IPython). Is it somehow possible to interrupt or abort the execution of that code without killing the interpreter? 回答1: Here is a possible implementation using multiprocessing as suggested by Ricardo C.,

问题 In IPython, I can't enter in a multiline indented block; it ends input (switches from the ...: prompt to the next In [x] ), as soon as I hit enter. For example, I'm trying to write an example implementation of Newton's method for a demonstration. I can only write the first line before it returns me to, so all I can type into IPython is this: In [3]: def newton(x0, fn, epsilon=0.00001): ...: x1 = x0 - fn.evalf(subs={'x': x0}) / fn.diff().evalf(subs={'x': x0}) In [4]: I'm using Python 3.6.6,

问题 My ipython works okay, but when I try to open ipython console from venv I am getting: Traceback (most recent call last): File "/usr/bin/ipython3", line 4, in <module> from IPython import start_ipython ImportError: No module named 'IPython' Any ways to do this? 回答1: Did you by any chance create the venv with the --system-site-packages flag and install ipython with pip ? This combination is broken in my experience ( Python 3.6.2 , pip 9.0.1 ). Two workarounds are: Use virtualenv instead of venv

问题 So I have an ipython notebook that has a lot of large variables, and at one point I want to get rid of all the ones I'm done with. I'm using %reset_selective variablename to clear each one, but there's 60 of these variables and when I run the block that has all 60 prompts, it asks me to enter y/n for every clear. "Once deleted, variables cannot be recovered. Proceed (y/[n])?" Is there a way I can answer "y" for all of them at once, or to skip the prompt altogether? 回答1: Reading from here:

问题 I installed jupyter via: /usr/local/opt/python/bin/python2.7 -m pip install jupyter this install ipython version 4.1.2. However, when I run jupyter notebook, I get: Traceback (most recent call last): File "/usr/local/bin/jupyter-notebook", line 7, in <module> from notebook.notebookapp import main File "/Library/Python/2.7/site-packages/notebook/notebookapp.py", line 83, in <module> from IPython.paths import get_ipython_dir ImportError: No module named IPython.paths yet, when I run from

问题 Let's say I accidentally evaluate an enormous variable--a list with a ba-jillion elements, or whatever. As they scroll down my screen and my computer crawls to a halt, is there a good way to interrupt this without killing my *Python* buffer? I'm using IPython via python-mode.el and ipython.el in emacs24 on Mac OS X Leopard-- Thoughts appreciated, a. 回答1: I usually C-c until it stops... and it usually works... 回答2: you could file a feature request at http://launchpad.net/python-mode asking for