The modules described in this chapter provide interfaces to operating system features that are available on (almost) all operating systems, such as files and a clock. The interfaces are generally modeled after the Unix or C interfaces, but they are available on most other systems as well. Here's an overview:
os--- Miscellaneous operating system interfacesio--- Core tools for working with streamstime--- Time access and conversionsargparse--- Parser for command-line options, arguments and sub-commands- Example
- ArgumentParser objects
- The add_argument() method
- The parse_args() method
- Other utilities
- Upgrading optparse code
optparse--- Parser for command line options- Background
- Tutorial
- Reference Guide
- Option Callbacks
- Defining a callback option
- How callbacks are called
- Raising errors in a callback
- Callback example 1: trivial callback
- Callback example 2: check option order
- Callback example 3: check option order (generalized)
- Callback example 4: check arbitrary condition
- Callback example 5: fixed arguments
- Callback example 6: variable arguments
- Extending
optparse
getopt--- C-style parser for command line optionslogging--- Logging facility for Pythonlogging.config--- Logging configurationlogging.handlers--- Logging handlersgetpass--- Portable password inputcurses--- Terminal handling for character-cell displayscurses.textpad--- Text input widget for curses programscurses.ascii--- Utilities for ASCII characterscurses.panel--- A panel stack extension for cursesplatform--- Access to underlying platform's identifying dataerrno--- Standard errno system symbolsctypes--- A foreign function library for Python- ctypes tutorial
- Loading dynamic link libraries
- Accessing functions from loaded dlls
- Calling functions
- Fundamental data types
- Calling functions, continued
- Calling functions with your own custom data types
- Specifying the required argument types (function prototypes)
- Return types
- Passing pointers (or: passing parameters by reference)
- Structures and unions
- Structure/union alignment and byte order
- Bit fields in structures and unions
- Arrays
- Pointers
- Type conversions
- Incomplete Types
- Callback functions
- Accessing values exported from dlls
- Surprises
- Variable-sized data types
- ctypes reference
- ctypes tutorial