则尝试导入该名称的子模块3、还没有找到,则抛出ImportError异常4、这个名称保存到本地名词空间中,如果有as子句,则使用as子句后的名称frompathlibimportPath#导入类Pathprint(Path, id(Path))importpathlib as pl#导入模块使用别名print(dir())print(pl)print(pl.Path, id(pl.Path))#可以看出导入的名词Path和pl....
importimportlibdefimport_all_modules():# 获取所有已导入的模块列表modules=list(importlib.imported_modules.keys())# 导入所有模块formodule_nameinmodules:try:module=importlib.import_module(module_name)print(f"成功导入模块:{module_name}")exceptImportError:print(f"导入模块失败:{module_name}")# 调用函数...
"""if__name__=='__main__':print("in __main__")else:print("in imported module") 以上代码输出结果戳这里 2>.模块的属性 1#!/usr/bin/env python2#_*_conding:utf-8_*_3#@author :yinzhengjie4#blog:http://www.cnblogs.com/yinzhengjie56importtest01 as t178"""9模块的属性如下:10__...
PyDict_DelItem(modules, name); return -1; } if (def->m_size == -1) { // builtins初始时为-1 if (def->m_base.m_copy) { /* Somebody already imported the module, likely under a different name. XXX this should really not happen. */ ...
print(f'Invoking __init__.py for {__name__}') import pkg.mod1, pkg.mod2 then when you execute import pkg, modules mod1 and mod2 are imported automatically: Python >>> import pkg Invoking __init__.py for pkg >>> pkg.mod1.foo() [mod1] foo() >>> pkg.mod2.bar() [mod...
Aliasing Modules It is possible to modify the names of modules and their functions within Python by using theaskeyword. You may want to change a name because you have already used the same name for something else in your program, another module you have imported also uses that name, or you...
PIPE ... ) >>> print(grep_process.stdout.decode("utf-8")) python3 python3-config python3.8 python3.8-config ... Here the .stdout attribute of the CompletedProcess object of ls is set to the input of the grep_process. It’s important that it’s set to input rather than stdin. ...
print('Failed to import:', e) We have not created anempty2module. Therefore an exception is raised. $ ./importerror.py Failed to import: No module named empty2 Executing Python modules Modules can be imported into other modules or they can be also executed. Module authors often create a ...
print("Max Int Size:", sys.maxsize) # 获取对象大小 print("Size of 10:", sys.getsizeof(10)) # 获取已导入模块 print("Imported Modules:", list(sys.modules.keys())) # 获取模块搜索路径 print("Module Search Path:", sys.path) 5.datetime datetime模块提供日期和时间操作的功能,如 datetime....
比如我在 file2.py 的末尾添加一行代码：import sys; print(sys.path)就可以打印 import 的搜索路径：...