upstream/ipython Files · IPython/quarantine/ipy_workdir.py

Prevent qtconsole frontend freeze on lots of output....

Prevent qtconsole frontend freeze on lots of output. The output from the kernel is now clipped to last `buffer_size` before displaying and a timer is used to flush the pending output text instead of attempting to display text on every stream output from kernel. The timer interval is adjusted based on actual time taken to append a screenful of text to widget. This throttles the widget repaints and avoids choking the Qt event loop leaving time to handle other Qt events. Test cases: In [1]: for i in xrange(1000000): print i In [2]: range(100000) Without this commit the first input causes the qtconsole frontend to freeze, not responding to `Ctrl+C`.

Bernardo B. Marques - - Load All Authors

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             ipy_workdir.py
        
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      from IPython.core import ipapi

      ip = ipapi.get()

      import os, subprocess

      workdir = None

      def workdir_f(ip,line):

          """ Exceute commands residing in cwd elsewhere

          Example::

            workdir /myfiles

            cd bin

            workdir myscript.py

          executes myscript.py (stored in bin, but not in path) in /myfiles

          """

          global workdir

          dummy,cmd  = line.split(None,1)

          if os.path.isdir(cmd):

              workdir = os.path.abspath(cmd)

              print "Set workdir",workdir

          elif workdir is None:

              print "Please set workdir first by doing e.g. 'workdir q:/'"

          else:

              sp = cmd.split(None,1)

              if len(sp) == 1:

                  head, tail = cmd, ''

              else:

                  head, tail = sp

              if os.path.isfile(head):

                  cmd = os.path.abspath(head) + ' ' + tail

              print "Execute command '" + cmd+ "' in",workdir

              olddir = os.getcwdu()

              os.chdir(workdir)

              try:

                  os.system(cmd)

              finally:

                  os.chdir(olddir)

      ip.define_alias("workdir",workdir_f)

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				from IPython.core import ipapi
				ip = ipapi.get()

				import os, subprocess

				workdir = None
				def workdir_f(ip,line):
				""" Exceute commands residing in cwd elsewhere

				Example::

				workdir /myfiles
				cd bin
				workdir myscript.py

				executes myscript.py (stored in bin, but not in path) in /myfiles
				"""
				global workdir
				dummy,cmd = line.split(None,1)
				if os.path.isdir(cmd):
				workdir = os.path.abspath(cmd)
				print "Set workdir",workdir
				elif workdir is None:
				print "Please set workdir first by doing e.g. 'workdir q:/'"
				else:
				sp = cmd.split(None,1)
				if len(sp) == 1:
				head, tail = cmd, ''
				else:
				head, tail = sp
				if os.path.isfile(head):
				cmd = os.path.abspath(head) + ' ' + tail
				print "Execute command '" + cmd+ "' in",workdir
				olddir = os.getcwdu()
				os.chdir(workdir)
				try:
				os.system(cmd)
				finally:
				os.chdir(olddir)

				ip.define_alias("workdir",workdir_f)