##// END OF EJS Templates
Backport PR #2738: Unicode content crashes the pager (console)...
Backport PR #2738: Unicode content crashes the pager (console) We've run into an interesting bug in the astropy project. https://github.com/astropy/astropy/issues/600 When displaying a docstring that contains Unicode and is also long enough that it gets sent to the pager it fails since the docstring can't be sent to the pager as ascii. This crashes in the middle of sending content to the pager, so the shell ends up in an inconsistent state and stops echoing the keyboard etc. The fix (attached) is merely to encode the content sent to the pager in the same encoding as the terminal (`sys.stdout.encoding`). Strictly speaking, this isn't always the right thing to do, since the pager may be configured to expect a different encoding than the terminal, but that is sort of an irrational way to configure a machine... ;) For example, `less`, in the absence of any special environment variables to tell it otherwise, uses the standard `LC*` environment variables to determine what to do, which should be the same mechanism the terminal also uses by default. If anyone can suggest a better fix, I'm all for it. Perhaps it should be configurable, defaulting to `sys.stdout.encoding`?

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ipy_editors.py
91 lines | 2.5 KiB | text/x-python | PythonLexer
""" 'editor' hooks for common editors that work well with ipython
They should honor the line number argument, at least.
Contributions are *very* welcome.
"""
from IPython.core import ipapi
from IPython.core.error import TryNext
ip = ipapi.get()
# We no longer bundle Itpl. If you update this module, you should use advanced
# string formatting instead.
from IPython.external.Itpl import itplns
import os
def install_editor(run_template, wait = False):
""" Gets a template in format "myeditor bah bah $file bah bah $line"
$file will be replaced by file name, $line by line number (or 0).
Installs the editor that is called by IPython, instead of the default
notepad or vi.
If wait is true, wait until the user presses enter before returning,
to facilitate non-blocking editors that exit immediately after
the call.
"""
def call_editor(self, file, line=0):
if line is None:
line = 0
cmd = itplns(run_template, locals())
print ">",cmd
if os.system(cmd) != 0:
raise TryNext()
if wait:
raw_input("Press Enter when done editing:")
ip.set_hook('editor',call_editor)
# in these, exe is always the path/name of the executable. Useful
# if you don't have the editor directory in your path
def komodo(exe = 'komodo'):
""" Activestate Komodo [Edit] """
install_editor(exe + ' -l $line "$file"', wait = True)
def scite(exe = "scite"):
""" SciTE or Sc1 """
install_editor(exe + ' "$file" -goto:$line')
def notepadplusplus(exe = 'notepad++'):
""" Notepad++ http://notepad-plus.sourceforge.net """
install_editor(exe + ' -n$line "$file"')
def jed(exe = 'jed'):
""" JED, the lightweight emacsish editor """
install_editor(exe + ' +$line "$file"')
def idle(exe = None):
""" Idle, the editor bundled with python
Should be pretty smart about finding the executable.
"""
if exe is None:
import idlelib
p = os.path.dirname(idlelib.__file__)
exe = p + '/idle.py'
install_editor(exe + ' "$file"')
def mate(exe = 'mate'):
""" TextMate, the missing editor"""
install_editor(exe + ' -w -l $line "$file"')
# these are untested, report any problems
def emacs(exe = 'emacs'):
install_editor(exe + ' +$line "$file"')
def gnuclient(exe= 'gnuclient'):
install_editor(exe + ' -nw +$line "$file"')
def crimson_editor(exe = 'cedt.exe'):
install_editor(exe + ' /L:$line "$file"')
def kate(exe = 'kate'):
install_editor(exe + ' -u -l $line "$file"')