importpkgutil# 使用pkgutil.iter_modules()函数迭代已安装的模块formoduleinpkgutil.iter_modules():print(module.name) 1. 2. 3. 4. 5. 这段代码将输出Python中已安装的所有模块的名称。 总结 通过以上步骤,我们成功地实现了“python list modules”的任务。我们首先导入pkgutil模块,然后使用pkgutil.iter_modules(...
In addition to normal directories, individual PYTHONPATH entriesmay refer to zipfiles containing pure Python modules (in either source orcompiled form). Extension modules cannot be imported from zipfiles. The default search path is installation dependent, but generally begins withprefix/lib/pythonversio...
有两种可能，一是该模块没有安装，一般可以用 pip install %module_name 来解决。注意有时候模块安装包名并不等于要导入的模块名。这种情况下可以通过pip search | list命令来尝试找到正确的包。另一种情况就是包虽然安装了，但当前运行的程序加载的路径有错。python运行时将从以下位置尝试加载python mod...
static PyObject * builtin___import__(PyObject *self, PyObject *args, PyObject *kwds) { static char *kwlist[] = {"name", "globals", "locals", "fromlist", "level", 0}; PyObject *name, *globals = NULL, *locals = NULL, *fromlist = NULL; int level = 0; if (!PyArg_ParseTu...
print(sys.path) # print out list of directories imported ''' Imported my_module... ['/Users/Yao/python_learn', #this directory was added automatically '/Users/Yao/Documents', '/Library/Frameworks/Python.framework/Versions/3.6/lib/python36.zip', '/Library...
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...
6.1.1. Executing modules as scripts When you run a Python module with python fibo.py <arguments> the code in the module will be executed, just as if you imported it, but with the__name__set to"__main__". That means that by adding this code at the end of your module: ...
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...
object instead of anoption on one of the read calls only"""# Imported modulesimport...
You can import modules into other modules in order to make use of the code that the imported modules contain. Python also comes with a library of standard modules. Some modules are built into the Python interpreter, which means that you can use them immediately. ...