1. Python modules and packages (0602)

Modules, exceptions, operating environments, MYSQLDB

Module:

Top-level files: As the entire file of the program portal, is responsible for calling other files in the code to implement the program flow function, called the top-level program files,

Module Files 1

Module Files 2

In Python everything is object, so the module is also an object, which means that the module has properties and methods.

All variables defined on the top level of a module are imported as properties of the module being imported

In a so-called program file, the variables defined and declared directly shelf are called global variables, and for a module, the variables defined in the top level are all called the properties of the module, and the classes, methods (functions) defined inside the module become similar to the properties that the module can be called.

Python program architecture

1, a Python program usually includes a top-level program files and other module files (0, one or more)

Top-level files: Contains the main control flow of the program

Module files: Provides a variety of functional components for top-level files or other modules

When the module is first imported (or overloaded), Python immediately executes the top-level program code of the module file (code that is not inside the function), and the code within the body of the function is not executed until the function is called.

When is the function executed?

Modules can also be imported into other modules, and import is a chain-type relationship,

Parameters available in Setup () in setup.py

Platforms: Platform List

License: License

Py_modules: A list of the names of each module, which may be in the root directory of the package (ModName) or in a sub-package directory (Subpkg1.modname)

Packages: List of each child package name

Broadly divided into two categories: metadata information and take care of the content list

Python setup. PY Sdist

You can specify a format for sdist--formats=

Zip:zip file

gztar:tar.gz file

batar:tar.bz2 file

Ztar:tar. Z file

Tar:tar file

Python setup. PY Ddist

You can specify a format for ddist--formats=

Zip:zip file

gztar:tar.gz file

Ztar:tar. Z file

Tar:tar file

RPM:RPM Package

Pkgtool:solaris Pkgtool

Wininst:window on the self-extracting zip format of the package

Msi:microsoft Installer

Bdist_dump

bdist_rpm

Bdist_wininst

Bdist_msi

How to get Help

Python setup.py--help

Python setup.py--help-commands: All commands that can be used. such as Build,install

Python setup.py command--help: Get help with specific commands

Python setup.py command--help-formats: Get the format supported by a particular command

Pip

1. Python modules and packages (0602)