我们从Python开源项目中，提取了以下18个代码示例，用于说明如何使用builtins.reload()。
def patch_reload(): try: import __builtin__ as builtins except ImportError: import builtins if hasattr(builtins, "reload"): sys.builtin_orig_reload = builtins.reload builtins.reload = patched_reload(sys.builtin_orig_reload) # @UndefinedVariable try: import imp sys.imp_orig_reload = imp.reload imp.reload = patched_reload(sys.imp_orig_reload) # @UndefinedVariable except: pass else: try: import importlib sys.importlib_orig_reload = importlib.reload # @UndefinedVariable importlib.reload = patched_reload(sys.importlib_orig_reload) # @UndefinedVariable except: pass del builtins
def cancel_patches_in_sys_module(): sys.exc_info = sys.system_exc_info # @UndefinedVariable try: import __builtin__ as builtins except ImportError: import builtins if hasattr(sys, "builtin_orig_reload"): builtins.reload = sys.builtin_orig_reload if hasattr(sys, "imp_orig_reload"): import imp imp.reload = sys.imp_orig_reload if hasattr(sys, "importlib_orig_reload"): import importlib importlib.reload = sys.importlib_orig_reload del builtins
def reloadAll(prefix=None, debug=False): """Automatically reload everything whose __file__ begins with prefix. - Skips reload if the file has not been updated (if .pyc is newer than .py) - if prefix is None, checks all loaded modules """ failed = [] changed = [] for modName, mod in list(sys.modules.items()): ## don't use iteritems; size may change during reload if not inspect.ismodule(mod): continue if modName == '__main__': continue ## Ignore if the file name does not start with prefix if not hasattr(mod, '__file__') or os.path.splitext(mod.__file__)[1] not in ['.py', '.pyc']: continue if prefix is not None and mod.__file__[:len(prefix)] != prefix: continue ## ignore if the .pyc is newer than the .py (or if there is no pyc or py) py = os.path.splitext(mod.__file__)[0] + '.py' pyc = py + 'c' if py not in changed and os.path.isfile(pyc) and os.path.isfile(py) and os.stat(pyc).st_mtime >= os.stat(py).st_mtime: #if debug: #print "Ignoring module %s; unchanged" % str(mod) continue changed.append(py) ## keep track of which modules have changed to insure that duplicate-import modules get reloaded. try: reload(mod, debug=debug) except: printExc("Error while reloading module %s, skipping\n" % mod) failed.append(mod.__name__) if len(failed) > 0: raise Exception("Some modules failed to reload: %s" % ', '.join(failed))
def updateFunction(old, new, debug, depth=0, visited=None): #if debug and depth > 0: #print " -> also updating previous version", old, " -> ", new old.__code__ = new.__code__ old.__defaults__ = new.__defaults__ if visited is None: visited = [] if old in visited: return visited.append(old) ## finally, update any previous versions still hanging around.. if hasattr(old, '__previous_reload_version__'): maxDepth = updateFunction(old.__previous_reload_version__, new, debug, depth=depth+1, visited=visited) else: maxDepth = depth ## We need to keep a pointer to the previous version so we remember to update BOTH ## when the next reload comes around. if depth == 0: new.__previous_reload_version__ = old return maxDepth ## For classes: ## 1) find all instances of the old class and set instance.__class__ to the new class ## 2) update all old class methods to use code from the new class methods
def reload(module, exclude=('sys', 'os.path', 'builtins', '__main__', 'numpy', 'numpy._globals')): """Recursively reload all modules used in the given module. Optionally takes a list of modules to exclude from reloading. The default exclude list contains sys, __main__, and __builtin__, to prevent, e.g., resetting display, exception, and io hooks. """ global found_now for i in exclude: found_now[i] = 1 try: with replace_import_hook(deep_import_hook): return deep_reload_hook(module) finally: found_now = {}
def reload(module, exclude=('sys', 'os.path', builtin_mod_name, '__main__', 'numpy', 'numpy._globals')): """Recursively reload all modules used in the given module. Optionally takes a list of modules to exclude from reloading. The default exclude list contains sys, __main__, and __builtin__, to prevent, e.g., resetting display, exception, and io hooks. """ global found_now for i in exclude: found_now[i] = 1 try: with replace_import_hook(deep_import_hook): return deep_reload_hook(module) finally: found_now = {}
def _dreload(module, **kwargs): """ **deprecated** import reload explicitly from `IPython.lib.deepreload` to use it """ # this was marked as deprecated and for 5.0 removal, but # IPython.core_builtin_trap have a Deprecation warning for 6.0, so cannot # remove that now. warn(""" injecting `dreload` in interactive namespace is deprecated since IPython 4.0. Please import `reload` explicitly from `IPython.lib.deepreload`. """, DeprecationWarning, stacklevel=2) reload(module, **kwargs)
def reload(module, exclude=('sys', 'os.path', builtin_mod_name, '__main__')): """Recursively reload all modules used in the given module. Optionally takes a list of modules to exclude from reloading. The default exclude list contains sys, __main__, and __builtin__, to prevent, e.g., resetting display, exception, and io hooks. """ global found_now for i in exclude: found_now[i] = 1 try: with replace_import_hook(deep_import_hook): return deep_reload_hook(module) finally: found_now = {}
def run(self): while True: try: packet = self.msgQueue.get() if packet['type'] == 'msg': msg = packet['content'] for channel in self.channel_list: self.irc.sendmsg(channel, msg) elif packet['type'] == 'irc': message = packet['content'] print(message) if message.msgType == 'INVITE': self.irc.joinchan(message.channel) elif message.msgType == 'MODE': if message.msg == '+o ' + self.irc.botnick: self.irc.sendmsg(message.channel, '????? :)') elif message.msgType == 'KICK': pass elif message.msgType == 'PRIVMSG': val = functions.functionlist(message.msg) if message.msg.find('!????') == 0: reload(functions) self.irc.sendmsg(message.channel, '???? ??') elif val: self.irc.sendmsg(message.channel, val) elif message.msgType == 'NOTICE': for chan in setting.chanlist: self.irc.joinchan(chan) except Exception as err: with open('error.log','a') as f: from datetime import datetime f.write(str(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))+'\n' + str(traceback.format_exc()) + '\n')
def reload(module, debug=False, lists=False, dicts=False): """Replacement for the builtin reload function: - Reloads the module as usual - Updates all old functions and class methods to use the new code - Updates all instances of each modified class to use the new class - Can update lists and dicts, but this is disabled by default - Requires that class and function names have not changed """ if debug: print("Reloading %s" % str(module)) ## make a copy of the old module dictionary, reload, then grab the new module dictionary for comparison oldDict = module.__dict__.copy() builtins.reload(module) newDict = module.__dict__ ## Allow modules access to the old dictionary after they reload if hasattr(module, '__reload__'): module.__reload__(oldDict) ## compare old and new elements from each dict; update where appropriate for k in oldDict: old = oldDict[k] new = newDict.get(k, None) if old is new or new is None: continue if inspect.isclass(old): if debug: print(" Updating class %s.%s (0x%x -> 0x%x)" % (module.__name__, k, id(old), id(new))) updateClass(old, new, debug) elif inspect.isfunction(old): depth = updateFunction(old, new, debug) if debug: extra = "" if depth > 0: extra = " (and %d previous versions)" % depth print(" Updating function %s.%s%s" % (module.__name__, k, extra)) elif lists and isinstance(old, list): l = old.len() old.extend(new) for i in range(l): old.pop(0) elif dicts and isinstance(old, dict): old.update(new) for k in old: if k not in new: del old[k] ## For functions: ## 1) update the code and defaults to new versions. ## 2) keep a reference to the previous version so ALL versions get updated for every reload
def deep_reload_hook(m): """Replacement for reload().""" # Hardcode this one as it would raise a NotImplemeentedError from the # bowels of Python and screw up the import machinery after. # unlike other imports the `exclude` list aleady in place is not enough. if m is types: return m if not isinstance(m, ModuleType): raise TypeError("reload() argument must be module") name = m.__name__ if name not in sys.modules: raise ImportError("reload(): module %.200s not in sys.modules" % name) global modules_reloading try: return modules_reloading[name] except: modules_reloading[name] = m dot = name.rfind('.') if dot < 0: subname = name path = None else: try: parent = sys.modules[name[:dot]] except KeyError: modules_reloading.clear() raise ImportError("reload(): parent %.200s not in sys.modules" % name[:dot]) subname = name[dot+1:] path = getattr(parent, "__path__", None) try: # This appears to be necessary on Python 3, because imp.find_module() # tries to import standard libraries (like io) itself, and we don't # want them to be processed by our deep_import_hook. with replace_import_hook(original_import): fp, filename, stuff = imp.find_module(subname, path) finally: modules_reloading.clear() try: newm = imp.load_module(name, fp, filename, stuff) except: # load_module probably removed name from modules because of # the error. Put back the original module object. sys.modules[name] = m raise finally: if fp: fp.close() modules_reloading.clear() return newm # Save the original hooks
def deep_reload_hook(m): """Replacement for reload().""" if not isinstance(m, ModuleType): raise TypeError("reload() argument must be module") name = m.__name__ if name not in sys.modules: raise ImportError("reload(): module %.200s not in sys.modules" % name) global modules_reloading try: return modules_reloading[name] except: modules_reloading[name] = m dot = name.rfind('.') if dot < 0: subname = name path = None else: try: parent = sys.modules[name[:dot]] except KeyError: modules_reloading.clear() raise ImportError("reload(): parent %.200s not in sys.modules" % name[:dot]) subname = name[dot+1:] path = getattr(parent, "__path__", None) try: # This appears to be necessary on Python 3, because imp.find_module() # tries to import standard libraries (like io) itself, and we don't # want them to be processed by our deep_import_hook. with replace_import_hook(original_import): fp, filename, stuff = imp.find_module(subname, path) finally: modules_reloading.clear() try: newm = imp.load_module(name, fp, filename, stuff) except: # load_module probably removed name from modules because of # the error. Put back the original module object. sys.modules[name] = m raise finally: if fp: fp.close() modules_reloading.clear() return newm # Save the original hooks
