reload_importer.py
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32 
33 import __builtin__
34 from importlib import reload
35 import os
36 import sys
37 
38 
40  """
41  Overrides the builtin import and automatically reloads all modules.
42 
43  Modules are imported from one of the reload paths after calling enable.
44  """
45 
46  def __init__(self):
47  self._excluded_modules = sys.modules.keys()
48  self._reload_paths = None
49  self._import_stack = []
50  self._reloaded_modules = set()
51  self._import = __builtin__.__import__
52 
53  def enable(self):
54  __builtin__.__import__ = self._reimport
55 
56  def disable(self):
57  __builtin__.__import__ = self._import
58 
59  def add_reload_path(self, path):
60  if self._reload_paths is None:
61  self._reload_paths = ()
62  self._reload_paths += (os.path.abspath(path),)
63 
64  def _reload(self, module):
65  if module.__name__ not in self._import_stack and module.__name__ in sys.modules:
66  if not self._import_stack:
67  self._reloaded_modules.clear()
68  self._import_stack.append(module.__name__)
69  # force reload
70  if module.__name__ not in self._reloaded_modules:
71  reload(module)
72  self._reloaded_modules.add(module.__name__)
73  self._import_stack.pop()
74 
75  def _reimport(self, name, globals_=None, locals_=None, fromlist=None, level=-1):
76  module = self._import(
77  name, globals_, locals_, fromlist if not None else [], level if not None else -1)
78 
79  if module.__name__ not in self._excluded_modules:
80  if self._reload_paths is None or \
81  (hasattr(module, '__file__') and
82  len([p for p in self._reload_paths if module.__file__.startswith(p)]) > 0):
83  self._reload(module)
84 
85  return module
def _reimport(self, name, globals_=None, locals_=None, fromlist=None, level=-1)


qt_gui
Author(s): Dirk Thomas
autogenerated on Sun Nov 1 2020 04:03:22