modules[__name__] # sys.modules stores imported modules >>> current_module.__dict__ is globals() True 当前模块(current module)就是 Python 代码执行时所在的命名空间。引入一个 Python 文件时,Python 会创建一个新的模块对象,并在执行该文件代码的时候,将该模块对象的字典作为全集变量。类似地,直接...
'modules', 'path', 'path_hooks', 'path_importer_cache', 'platform', 'prefix', 'setcheckinterval', 'setprofile', 'setrecursionlimit', 'settrace', 'stderr', 'stdin', 'stdout', 'subversion', 'version', 'version_info', 'warnoptions', 'winver'] >>> dir() ['Class1', '__builtins...
interp->modules 指向一个 PyDictObject 对象(module_name, module_object),维护系统所有的module,可能动态添加,为所有PyThreadState 对象所共享;import sys sys.modules or sys.__dict__['modules'] 可以访问到module 集合。同理 interp->builtins 指向 __builtins__.__dict__; interp->sysdict 指向 sys._...
[] node_path = 'module-management:module-management/module-management:next-startup-modules/module-management:next-startup-module' elems = root_elem.findall(node_path, namespaces) if elems is not None: for elem in elems: elem_text = elem.find('module-management:name', namespaces) next_mod_...
'CLASSPATH':'.:/usr/local/jdk1.8.0_66/lib:/usr/local/jdk1.8.0_66/jre/lib','JRE_HOME':'/usr/local/jdk1.8.0_66/jre','_':'/usr/bin/python','SSH_CONNECTION':'172.16.101.215 54940 10.10.10.201 22','ANT_HOME':'/usr/local/ant','SSH_TTY':'/dev/pts/1','HOSTNAME':'localhost...
Python中的反射机制可以让我们在运行时动态地访问和修改对象的属性和方法。我们可以利用反射机制来搜索指定的Class。 importinspectdeffind_class(class_name):forname,objininspect.getmembers(sys.modules[__name__]):ifinspect.isclass(obj)andobj.__name__==class_name:returnobj# Example usageuser_class=find_...
模块,英文为 Modules,至于模块到底是什么,可以用一句话总结:模块就是 Python 程序。换句话说,任何 Python 程序都可以作为模块,包括在前面章节中写的所有 Python 程序,都可以作为模块。 模块可以比作一盒积木,通过它可以拼出多种主题的玩具,这与前面介绍的函数不同,一个函数仅相当于一块积木,而一个模块(.py 文件...
11. 3) 自定义异常 Python也支持自定义异常,自定义的异常需要继承自Exception类,例如: # user_defined.py class BFoundEx(Exception): def __init__(self, value): self.par = value def __str__(self): return "BFoundEx: b character found at position {0}".format(self.par) ...
filename (missing for built-in modules) class __doc__ documentation string __module__ name of module in which this class was defined method __doc__ documentation string __name__ name with which this method was defined im_class class object that asked for this method (1) im_func or _...
class WTF: passOutput:>>> WTF() == WTF() # two different instances can't be equal False >>> WTF() is WTF() # identities are also different False >>> hash(WTF()) == hash(WTF()) # hashes _should_ be different as well True >>> id(WTF()) == id(WTF()) True...