upstream/ipython Files · IPython/quarantine/ipy_exportdb.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`.

Brian Granger - - Load All Authors

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r2267:928c921b


                r11519:c7a90e39

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             ipy_exportdb.py
        
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             / IPython / quarantine / ipy_exportdb.py
          
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        Brian Granger
    
ipapi.py => core/ipapi.py and imports updated.

              r2027
            
      from IPython.core import ipapi

        Brian Granger
    
macro.py => core/macro.py and upated imports.

              r2033
            
      from IPython.core import macro

        Brian Granger
    
ipapi.py => core/ipapi.py and imports updated.

              r2027
            
      ip = ipapi.get()

        vivainio
    
crlf cleanup

              r680
            
      import os,pprint

      def export(filename = None):

        Brian Granger
    
ipapi.py => core/ipapi.py and imports updated.

              r2027
            
          lines = ['import IPython.core.ipapi', 'ip = IPython.core.ipapi.get()','']

        vivainio
    
crlf cleanup

              r680
            
          vars = ip.db.keys('autorestore/*')

          vars.sort()

          varstomove = []

          get = ip.db.get

          macros = []

          variables = []

          for var in vars:

              k = os.path.basename(var)

              v = get(var)

              if k.startswith('_'):

                  continue

        Brian Granger
    
macro.py => core/macro.py and upated imports.

              r2033
            
              if isinstance(v, macro.Macro):

        vivainio
    
crlf cleanup

              r680
            
                  macros.append((k,v))

              if type(v) in [int, str, float]:

                  variables.append((k,v))

          if macros:

              lines.extend(['# === Macros ===' ,''])

          for k,v in macros:

              lines.append("ip.defmacro('%s'," % k)

              for line in v.value.splitlines():

                  lines.append(' ' + repr(line+'\n'))

              lines.extend([')', ''])

          if variables:

              lines.extend(['','# === Variables ===',''])

              for k,v in variables:

                  varstomove.append(k)

                  lines.append('%s = %s' % (k,repr(v)))

        Brian Granger
    
Continuing a massive refactor of everything.

              r2205
            
              lines.append('ip.push("%s")' % (' '.join(varstomove)))

        vivainio
    
crlf cleanup

              r680
            
          bkms = ip.db.get('bookmarks',{})

          if bkms:

              lines.extend(['','# === Bookmarks ===',''])

              lines.append("ip.db['bookmarks'] = %s " % pprint.pformat(bkms, indent = 2) )

          aliases = ip.db.get('stored_aliases', {} )

          if aliases:

              lines.extend(['','# === Alias definitions ===',''])

              for k,v in aliases.items():

        vivainio
    
ipy_exportdb now tolerates new style aliases'

              r809
            
                  try:

        Brian Granger
    
Continuing a massive refactor of everything.

              r2205
            
                      lines.append("ip.define_alias('%s', %s)" % (k, repr(v[1])))

        vivainio
    
ipy_exportdb now tolerates new style aliases'

              r809
            
                  except (AttributeError, TypeError):

                      pass

        vivainio
    
crlf cleanup

              r680
            
          env = ip.db.get('stored_env')

          if env:

              lines.extend(['','# === Stored env vars ===',''])

              lines.append("ip.db['stored_env'] = %s " % pprint.pformat(env, indent = 2) )

          out = '\n'.join(lines)

          if filename:

              open(filename,'w').write(out)

          else:

              print out

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Brian Granger ipapi.py => core/ipapi.py and imports updated.	r2027	from IPython.core import ipapi
Brian Granger macro.py => core/macro.py and upated imports.	r2033	from IPython.core import macro
Brian Granger ipapi.py => core/ipapi.py and imports updated.	r2027	ip = ipapi.get()
vivainio crlf cleanup	r680
		import os,pprint

		def export(filename = None):

Brian Granger ipapi.py => core/ipapi.py and imports updated.	r2027	lines = ['import IPython.core.ipapi', 'ip = IPython.core.ipapi.get()','']
vivainio crlf cleanup	r680
		vars = ip.db.keys('autorestore/*')
		vars.sort()
		varstomove = []
		get = ip.db.get

		macros = []
		variables = []

		for var in vars:
		k = os.path.basename(var)
		v = get(var)

		if k.startswith('_'):
		continue
Brian Granger macro.py => core/macro.py and upated imports.	r2033	if isinstance(v, macro.Macro):
vivainio crlf cleanup	r680	macros.append((k,v))
		if type(v) in [int, str, float]:
		variables.append((k,v))



		if macros:
		lines.extend(['# === Macros ===' ,''])
		for k,v in macros:
		lines.append("ip.defmacro('%s'," % k)
		for line in v.value.splitlines():
		lines.append(' ' + repr(line+'\n'))
		lines.extend([')', ''])

		if variables:
		lines.extend(['','# === Variables ===',''])
		for k,v in variables:
		varstomove.append(k)
		lines.append('%s = %s' % (k,repr(v)))

Brian Granger Continuing a massive refactor of everything.	r2205	lines.append('ip.push("%s")' % (' '.join(varstomove)))
vivainio crlf cleanup	r680
		bkms = ip.db.get('bookmarks',{})

		if bkms:
		lines.extend(['','# === Bookmarks ===',''])
		lines.append("ip.db['bookmarks'] = %s " % pprint.pformat(bkms, indent = 2) )

		aliases = ip.db.get('stored_aliases', {} )

		if aliases:
		lines.extend(['','# === Alias definitions ===',''])
		for k,v in aliases.items():
vivainio ipy_exportdb now tolerates new style aliases'	r809	try:
Brian Granger Continuing a massive refactor of everything.	r2205	lines.append("ip.define_alias('%s', %s)" % (k, repr(v[1])))
vivainio ipy_exportdb now tolerates new style aliases'	r809	except (AttributeError, TypeError):
		pass
vivainio crlf cleanup	r680
		env = ip.db.get('stored_env')
		if env:
		lines.extend(['','# === Stored env vars ===',''])
		lines.append("ip.db['stored_env'] = %s " % pprint.pformat(env, indent = 2) )



		out = '\n'.join(lines)

		if filename:
		open(filename,'w').write(out)
		else:
		print out