add hg and python
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cinap_lenrek
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226
sys/lib/python/idlelib/AutoComplete.py
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226
sys/lib/python/idlelib/AutoComplete.py
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"""AutoComplete.py - An IDLE extension for automatically completing names.
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This extension can complete either attribute names of file names. It can pop
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a window with all available names, for the user to select from.
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"""
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import os
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import sys
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import string
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from configHandler import idleConf
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import AutoCompleteWindow
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from HyperParser import HyperParser
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import __main__
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# This string includes all chars that may be in a file name (without a path
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# separator)
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FILENAME_CHARS = string.ascii_letters + string.digits + os.curdir + "._~#$:-"
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# This string includes all chars that may be in an identifier
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ID_CHARS = string.ascii_letters + string.digits + "_"
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# These constants represent the two different types of completions
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COMPLETE_ATTRIBUTES, COMPLETE_FILES = range(1, 2+1)
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class AutoComplete:
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menudefs = [
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('edit', [
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("Show completions", "<<force-open-completions>>"),
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])
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]
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popupwait = idleConf.GetOption("extensions", "AutoComplete",
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"popupwait", type="int", default=0)
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def __init__(self, editwin=None):
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if editwin == None: # subprocess and test
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self.editwin = None
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return
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self.editwin = editwin
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self.text = editwin.text
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self.autocompletewindow = None
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# id of delayed call, and the index of the text insert when the delayed
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# call was issued. If _delayed_completion_id is None, there is no
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# delayed call.
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self._delayed_completion_id = None
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self._delayed_completion_index = None
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def _make_autocomplete_window(self):
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return AutoCompleteWindow.AutoCompleteWindow(self.text)
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def _remove_autocomplete_window(self, event=None):
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if self.autocompletewindow:
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self.autocompletewindow.hide_window()
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self.autocompletewindow = None
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def force_open_completions_event(self, event):
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"""Happens when the user really wants to open a completion list, even
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if a function call is needed.
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"""
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self.open_completions(True, False, True)
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def try_open_completions_event(self, event):
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"""Happens when it would be nice to open a completion list, but not
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really neccesary, for example after an dot, so function
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calls won't be made.
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"""
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lastchar = self.text.get("insert-1c")
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if lastchar == ".":
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self._open_completions_later(False, False, False,
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COMPLETE_ATTRIBUTES)
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elif lastchar == os.sep:
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self._open_completions_later(False, False, False,
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COMPLETE_FILES)
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def autocomplete_event(self, event):
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"""Happens when the user wants to complete his word, and if neccesary,
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open a completion list after that (if there is more than one
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completion)
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"""
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if hasattr(event, "mc_state") and event.mc_state:
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# A modifier was pressed along with the tab, continue as usual.
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return
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if self.autocompletewindow and self.autocompletewindow.is_active():
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self.autocompletewindow.complete()
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return "break"
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else:
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opened = self.open_completions(False, True, True)
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if opened:
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return "break"
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def _open_completions_later(self, *args):
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self._delayed_completion_index = self.text.index("insert")
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if self._delayed_completion_id is not None:
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self.text.after_cancel(self._delayed_completion_id)
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self._delayed_completion_id = \
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self.text.after(self.popupwait, self._delayed_open_completions,
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*args)
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def _delayed_open_completions(self, *args):
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self._delayed_completion_id = None
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if self.text.index("insert") != self._delayed_completion_index:
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return
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self.open_completions(*args)
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def open_completions(self, evalfuncs, complete, userWantsWin, mode=None):
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"""Find the completions and create the AutoCompleteWindow.
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Return True if successful (no syntax error or so found).
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if complete is True, then if there's nothing to complete and no
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start of completion, won't open completions and return False.
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If mode is given, will open a completion list only in this mode.
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"""
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# Cancel another delayed call, if it exists.
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if self._delayed_completion_id is not None:
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self.text.after_cancel(self._delayed_completion_id)
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self._delayed_completion_id = None
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hp = HyperParser(self.editwin, "insert")
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curline = self.text.get("insert linestart", "insert")
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i = j = len(curline)
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if hp.is_in_string() and (not mode or mode==COMPLETE_FILES):
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self._remove_autocomplete_window()
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mode = COMPLETE_FILES
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while i and curline[i-1] in FILENAME_CHARS:
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i -= 1
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comp_start = curline[i:j]
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j = i
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while i and curline[i-1] in FILENAME_CHARS+os.sep:
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i -= 1
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comp_what = curline[i:j]
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elif hp.is_in_code() and (not mode or mode==COMPLETE_ATTRIBUTES):
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self._remove_autocomplete_window()
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mode = COMPLETE_ATTRIBUTES
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while i and curline[i-1] in ID_CHARS:
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i -= 1
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comp_start = curline[i:j]
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if i and curline[i-1] == '.':
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hp.set_index("insert-%dc" % (len(curline)-(i-1)))
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comp_what = hp.get_expression()
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if not comp_what or \
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(not evalfuncs and comp_what.find('(') != -1):
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return
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else:
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comp_what = ""
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else:
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return
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if complete and not comp_what and not comp_start:
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return
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comp_lists = self.fetch_completions(comp_what, mode)
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if not comp_lists[0]:
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return
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self.autocompletewindow = self._make_autocomplete_window()
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self.autocompletewindow.show_window(comp_lists,
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"insert-%dc" % len(comp_start),
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complete,
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mode,
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userWantsWin)
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return True
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def fetch_completions(self, what, mode):
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"""Return a pair of lists of completions for something. The first list
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is a sublist of the second. Both are sorted.
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If there is a Python subprocess, get the comp. list there. Otherwise,
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either fetch_completions() is running in the subprocess itself or it
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was called in an IDLE EditorWindow before any script had been run.
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The subprocess environment is that of the most recently run script. If
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two unrelated modules are being edited some calltips in the current
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module may be inoperative if the module was not the last to run.
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"""
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try:
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rpcclt = self.editwin.flist.pyshell.interp.rpcclt
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except:
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rpcclt = None
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if rpcclt:
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return rpcclt.remotecall("exec", "get_the_completion_list",
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(what, mode), {})
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else:
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if mode == COMPLETE_ATTRIBUTES:
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if what == "":
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namespace = __main__.__dict__.copy()
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namespace.update(__main__.__builtins__.__dict__)
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bigl = eval("dir()", namespace)
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bigl.sort()
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if "__all__" in bigl:
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smalll = eval("__all__", namespace)
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smalll.sort()
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else:
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smalll = filter(lambda s: s[:1] != '_', bigl)
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else:
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try:
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entity = self.get_entity(what)
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bigl = dir(entity)
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bigl.sort()
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if "__all__" in bigl:
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smalll = entity.__all__
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smalll.sort()
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else:
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smalll = filter(lambda s: s[:1] != '_', bigl)
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except:
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return [], []
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elif mode == COMPLETE_FILES:
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if what == "":
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what = "."
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try:
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expandedpath = os.path.expanduser(what)
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bigl = os.listdir(expandedpath)
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bigl.sort()
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smalll = filter(lambda s: s[:1] != '.', bigl)
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except OSError:
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return [], []
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if not smalll:
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smalll = bigl
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return smalll, bigl
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def get_entity(self, name):
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"""Lookup name in a namespace spanning sys.modules and __main.dict__"""
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namespace = sys.modules.copy()
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namespace.update(__main__.__dict__)
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return eval(name, namespace)
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